Answer A is the right choice. A specific tRNA molecule's anticodon complements the corresponding mRNA codon.
The mRNA molecule's matching codon and the anticodon of the tRNA are complementary. As a result, complementary base pairing allows the tRNA to bind to the mRNA codon. The appropriate mRNA codon and the tRNA anticodon are hence complementary. A trinucleotide sequence called an anticodon is found at one end of a transfer RNA (tRNA) molecule and is complementary to a corresponding codon in an mRNA sequence.
The tRNA molecules are in charge of pairing amino acids with the proper codons in the mRNA. Each tRNA molecule has two separate ends; one of them attaches to a particular amino acid, while the other one binds to the appropriate mRNA codon.
Therefore, we might conclude that Answer A is the best option. The complementary mRNA codon of a particular tRNA molecule is its anticodon.
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Given the chemical formula, how is this substance MOST LIKELY classified?
A)
atom
B)
compound
09)
both atom and compound
D)
neither atom nor compound
Two porcupines have different parents. One has thick bristles, while the other has thin bristles.Why do they have different bristle thickness?
They have different bristles because they have different versions of genes that they inherit from their parents, given that these porcupines have different parents. These genes instruct or determine the thickness of their bristles.
The proper balance among producers , consumers and decomposers is the result of balanced ecosystem in nature. Justify this statement with appropriate examples.
Answer:
The balance among producers, consumers, and decomposers is essential to maintaining a healthy and sustainable ecosystem in nature. Each of these components plays a critical role in the cycling of energy and nutrients within an ecosystem, which ultimately affects the health and productivity of all living organisms within it.
Producers, such as plants, algae, and some bacteria, are at the base of the food chain and are responsible for converting sunlight into organic matter through photosynthesis. This organic matter serves as the primary source of energy for all other organisms within the ecosystem. Without producers, there would be no food source for consumers, and the entire ecosystem would collapse. For example, in a terrestrial ecosystem, plants are the primary producers and are consumed by herbivores, which are then consumed by carnivores.
Consumers, including herbivores, carnivores, omnivores, and scavengers, obtain their energy by consuming other organisms. They play an essential role in regulating the populations of other organisms within the ecosystem, and their feeding habits affect the balance of the food chain. For instance, in a marine ecosystem, sharks are apex predators that consume a wide variety of organisms, including fish, sea turtles, and seals. Without predators like sharks, the populations of prey species would increase, leading to competition for resources and potential overconsumption of the producers.
Decomposers, such as bacteria and fungi, break down dead organic matter and return nutrients to the soil or water, where they can be taken up by producers. Decomposers are critical to the recycling of nutrients within an ecosystem, and their activity helps to maintain a healthy balance of energy and nutrients. For example, in a forest ecosystem, decomposers break down fallen leaves, branches, and other organic matter, returning nutrients to the soil, which can be taken up by plants and other producers.
In conclusion, the balance among producers, consumers, and decomposers is crucial to maintaining a healthy and sustainable ecosystem. The interactions between these components help to regulate the populations of organisms within the ecosystem and ensure that energy and nutrients are cycled efficiently. Disruptions to this balance, such as overconsumption of producers or loss of decomposers, can have severe consequences for the entire ecosystem. Therefore, it is essential to protect and conserve all components of the ecosystem to maintain a healthy and sustainable environment for future generations.
Explanation:
CHAPTER 12
LESSON
1 RNA
READING TOOL Compare and Contrast As you read your textbook, identify the similarities
and differences between RNA and DNA. Complete the Venn diagram to compare and contrast
these molecules. A sample difference has been entered for you.
Single stranded
As you read, circle
the answers to each Key
Question. Underline any
words you do not understand.
RNA
BUILD Vocabulary
ribonucleic acid (RNA) single-
stranded nucleic acid that contains
the sugar ribose
Both
146 Chapter 12 RNA and Protein Synthesis
DNA
Double stranded
Lesson Summary
The Role of RNA
KEY QUESTION How does RNA differ from DNA?
DNA contains a genetic code that living cells can read,
understand, and express. DNA is made of just four nucleotides
joined together in double-stranded molecules that can be millions
of bases in length. What exactly do those bases code for, and
how does the cell "read" that code? That's where RNA comes in.
RNA helps to put the genetic code into action. RNA, like DNA,
is a nucleic acid that consists of a long chain of nucleotides.
Genes contain coded DNA instructions that tell cells how
to build proteins. The first step in decoding these genetic
instructions is to copy part of the base sequence from DNA
into RNA. RNA then uses these instructions to direct the
production of proteins, which help to determine an organism's
characteristics.
Copyright Savvas Learning Company LLC. All Rights Reserved.
DNA and RNA have similarities in their nucleotide composition and involvement in genetic processes. However, they differ in their sugar type, strandedness, and specific functions in protein synthesis. Understanding these similarities and differences is crucial for comprehending the fundamental mechanisms of genetics and cellular processes.
RNA and DNA are both nucleic acids that play essential roles in genetic information and protein synthesis. However, they differ in various aspects.
DNA, or deoxyribonucleic acid, is a double-stranded molecule composed of nucleotides. It contains the sugar deoxyribose and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and thymine (T). DNA carries the genetic code and serves as the hereditary material in most organisms.
On the other hand, RNA, or ribonucleic acid, is typically single-stranded and contains the sugar ribose. RNA also consists of nucleotides, but it uses uracil (U) instead of thymine as a nitrogenous base. RNA has several forms, including messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). Each form has specific roles in protein synthesis.
In terms of function, DNA stores and transmits genetic information, while RNA helps translate that information into proteins. DNA is primarily located in the nucleus of cells, while RNA is found in both the nucleus and cytoplasm.
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GIVING BRAINLIEST IF YOU HURRY ! living environment help! 20 pointsss
Scarification is a process that scratches up the surfaces of seeds that pass through the guts of birds. A student wanted to see if scarified seeds grew better than those that were not scarified. He simulated scarification by rubbing 20 cherry seeds with sandpaper. Another set of 20 cherry seeds were left alone. The student planted each of the seeds into separate pots and gave them the same amount of water daily. The pots were placed in a location with a constant temperature of approximately 25 degrees C. The number of seeds that germinated each group was recorded daily for three weeks. Which is the control group?
Which is the experimental group?
What is the independent variable?
What is the dependent variable?
Name at least one controlled variable?
Was quantitative or qualitative data collected?
The control group is the set of non-scarified seeds. The experimental group is the set of scarified seeds. The independent variable is scarification process. The dependent variable. is the number of seeds that germinated in each group.
Controlled variables are the amount of water supplied daily, the constant temperature of the growing environment, the type of cherry seeds used and the size of the planting pots.
Quantitative data are the daily count of the number of seeds that germinated in each group over three weeks.
The study does not have qualitative data.
Differences between dependent and independent variablesThe independent variable needs no stimulus to generate results.The dependent variable needs to be stimulated by the independent variable to generate results.A scientific experiment needs to feature all of the elements represented above to be effective and reliable. This is because these elements prove that the experiment was carried out methodically, specifically, and with care in each variable and presented data.
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Why women died of the giving birth?
Answer:
probably because of high blood preasure and heavy bleeding
Answer:
Women sometimes pass while giving birth because of immense bleeding, sepsis, eclampsia, or unsafe abortions
An area that has been sampled to have a large population of organisms. Does this represent high biodiversity? Why or why not?
An area that has been sampled to have a large population of organisms is
regarded as having a high biodiversity.
Biodiversity is defined as the condition in which areas have a high amount
of plant and animal species present there. Any place with a large population
of organisms is said to have a high biodiversity while places with low
population of organisms have low biodiversity.
The stated facts therefore makes an area that has been sampled to have a
large population of organisms represents high biodiversity.
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The ribosome is an organelle present in both plant cells and animal cells. which of the followingbest describes the structure of the ribosome in these types of cells.A. ribosomes in both types of cells lack a membrane and consist of only RNA and proteins.B. ribosomes in both types of cells lack a membrane and appear as a dark structure insidethe nucleus of the cell.C. ribosomes in plant cells are surrounded by a membrane and contain enzymes butribosomes in animal cells do not contain enzymes.D. Ribosomes in animal cells are surrounded by two membranes and have many internalfolds but ribosomes in plant cells do not have internal folds.
The correct answer is A. ribosomes in both types of cells lack a membrane and consist of only RNA and proteins. Ribosomes are not membranous structures that both hold mRNA and assemble proteins.
4. Take into account the fact that Earth's populations are increasing. How could this fact
explain the differences in the cancer death rate vs. the total number of cancer deaths.
As Earth's populations increase, the number of cancer cases and cancer deaths is also likely to increase. This can result in differences between the cancer death rate and the total number of cancer deaths.
The cancer death rate is calculated by dividing the number of cancer deaths by the total population and then multiplying by a factor of 100,000 or 1,000,000. As the population grows, the number of cancer deaths may also increase, but the death rate may remain relatively stable if the growth in the number of deaths is proportional to the growth in population.
On the other hand, the total number of cancer deaths is simply the total count of all cancer-related deaths within a given time period, regardless of the size of the population. As the population increases, so will the total number of cancer deaths, even if the death rate remains stable.
Therefore, the difference between the cancer death rate and the total number of cancer deaths can be explained by the growth in Earth's populations. An increasing population may result in an increase in the total number of cancer deaths, even if the death rate remains stable.
Name the two characteristics air masses have based on where they form
Answer:
Air masses are also identified based on whether they form over land or over water. Maritime air masses form over water and are humid. Continental air masses form over land and are dry. Therefore, an air mass that develops over northern Canada is called a continental polar air mass and is cold and dry.Air Mass is an extremely large body of air whose properties of temperature and moisture content (humidity), at any given altitude, are fairly similar in any horizontal direction.
Explanation:
Police arrive on the scene of a suspicious death at 11:00 am. When the medical examiner arrives, he takes the rectal temperature of the corpse and finds that it is 89.4° F. Using the Glastier equation, calculate the approximate time of death.
Using the Glastier equation, the approximate time of death of the victim is 4:53 am.
Glastier equationThe Glaister equation is a method for estimating the time of death based on the body's core temperature.
It states that the body temperature drops at a rate of about 1.5 degrees Fahrenheit per hour after death, until it reaches the ambient temperature.
To use the Glaister equation, we can subtract the rectal temperature of the body from the normal core body temperature of 98.6°F (37°C) and divide the result by 1.5°F per hour to estimate the number of hours since death.
In this case, the rectal temperature of the body is 89.4°F, so we can calculate the time of death as follows:
Time since death = (98.6°F - 89.4°F) / 1.5°F per hour
Time since death = 6.07 hours
Therefore, based on the Glaister equation, the approximate time of death would be around 4:53 am.
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Please help with the question below.
Now. It's a dead zone.
Fertilizer (nitrogen) from nearby farmland washes into the lake, resulting in lots of algae at the surface and a zone with no O₂ .
1. Why is there an increase in algae (A)?
2. Why did the amount of mosquito larvae (B) increase?
3. Describe how photosynthesis is related to respiration.
4. Where is there photosynthesis happening?
(Zone A, B, C, D or E)?
1) There is an increase in the algae due to the nitrogen nutrient supplied.
2) The mosquito larva eats up the algae.
3) Photosynthesis is the opposite of respiration
4) Photosynthesis is happening in zone A.
What is fertilizer?The term fertilizer has to do with the substances that is able to encourage the growth of plants. We have to recall that the algae is a plant that serves as a producer in the marine food chain.
We can see that the algae would increase when the nitrogen is increased and also that the mosquito larva would increase where we have more of the algae.
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Glycogen is an energy-storage molecule in humans. A hormone that is called insulin controls the storage of glycogen in the liver. Insulin is made up of amino acids.
Which statement correctly identifies the types of macromolecules that are described?
Glycogen is a protein, and insulin is a lipid.
Glycogen is a protein, and insulin is a protein.
Glycogen is a carbohydrate, and insulin is a lipid.
Glycogen is a carbohydrate, and insulin is a protein
Answer & Explanation:
The correct statement is: Glycogen is a carbohydrate, and insulin is a protein.
Glycogen is a complex carbohydrate composed of glucose molecules linked together in a branched structure. It serves as the primary storage form of glucose in animals, including humans. It is stored in the liver and muscles, where it can be broken down to release glucose as an energy source when needed.
Insulin, on the other hand, is a protein hormone. It is produced in the pancreas and plays a crucial role in regulating blood sugar levels. Insulin facilitates the uptake of glucose from the bloodstream into cells and promotes the storage of excess glucose as glycogen in the liver. It also regulates various metabolic processes in the body.
Therefore, glycogen is a carbohydrate used for energy storage, and insulin is a protein hormone involved in glycogen storage and blood sugar regulation.
(HELP FAST) A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as: 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write "lives on land during all life stages"? Explain your answer.
"The derived shared characteristic 'Terrestrial during all stages' should be placed at the base of the tree diagram."
SupThe characteristic "Terrestrial during all stages" is a shared characteristic among all five species being compared in the branching tree diagram. This means that it is a characteristic that all of these species have in common, and therefore it is likely that it was present in their common ancestor.
Since the base of the tree represents the common ancestor of the species being compared, it makes sense to place this characteristic at the base of the tree. This also helps to show that this characteristic is a defining trait of the group of species being compared and that it has been present in their lineage since their common ancestor.
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complete the flow of deoxygenated blood other parts of the body (a)_____(b)_____tricuspid valve (c)______(d)_______capillary bed of the lungs(alveoli)
Answer:
The correct flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)
Explanation:
Deoxygenated blood is moved from the tissues to the venules, veins or vena cava to the right atrium chamber and move through the tricuspid valve present in between both right chambers right atrium and right ventricle.
From the right ventricle, the deoxygenated blood is pumped into the pulmonary artery that takes the blood to the lungs more specifically to the capillary bed of lungs.
Thus, the flow is - the body (a) Venules/vein/vena cava (b) Right atrium tricuspid valve (c) Right ventricle (d) Pulmonary artery, capillary bed of the lungs(alveoli)
What is the Calvin cycle?
A series of light dependent reactions
A series of light independent reactions.
Light dependent and light independent reactions
Another name for the production of chloroplasts.
The Calvin cycle is a series of light-independent reactions that occur in the chloroplasts of plants.
These reactions are responsible for converting carbon dioxide into glucose, which is the main source of energy for the plant. The Calvin cycle is also known as the Calvin-Benson cycle or the C3 cycle. The cycle consists of three main stages: carbon fixation, reduction, and regeneration. During carbon fixation, an enzyme called Rubisco combines carbon dioxide with a five-carbon molecule called RuBP. This results in the formation of two three-carbon molecules known as PGA. In the reduction stage, ATP and NADPH, which are produced during the light-dependent reactions, are used to convert PGA into G3P. Some of the G3P molecules are used to regenerate RuBP, while others are used to produce glucose and other organic compounds.For more questions on Calvin's cycle
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What do B cells do?
O make your mucous membranes watery
O produce antibodies
O cause inflammation
o eat dead cells
Ben wants to be on the basketball team, but he's worried he won't make it to the team. He spent weeks working out as hard as possible, preparing for try outs. At try outs, he amazes the coaches with his skills as good player. They ask him to be their starting player that year and give him a jersey. Ben leaves the court happily!
II. Match the events in column A with the correct element of a plot in column B.
COLUMN A
14. He spends weeks working out as hard as possible, preparing for try outs.
15. Ben wants to be on the basketball team but he's worried he won't make the team.
16. At try out, he amazes the coaches with his skill as a player
17. Ben was given a jersey.
18. Ben leaves the court happily!
COLUMN B:
A. Exposition
B. Rising Action
C. Climax
D. Falling Action
E. Resolution
PLEASE ANSWER IT I REALLY NEED THE ANSWER
NONSENSE REPORT
Which of the following liquids causes heartburn?
chyme
cecum
stomach acid
bile
The liquid that causes heartburn is stomach acid.
Can environmental factors influence the expression of traits?
Answer:
Environmental Factors Interact with Genes
Environmental factors often influence traits independently of genes. But not always. Sometimes the environment changes a gene—either its DNA sequence or its activity level. Either of these effects can change the proteins that are made from a gene, which in turn affects traits.
Where does aerobic respiration occur in the cell?
Ribosome
Cytoplasm
Mitochondria
cell membrane
Answer:
Mitochondria
Explanation:
Aerobic respiration has most of the characteristic of eukaryotic cells. So, when they have enough oxygen it happens within the mitochondria.
A variety of plant populations can be found in a prairie. What would be the most likely effect on a plant populations if there was a significant decrease in rainfall? A- Competition for water among the plants would decrease B-Competition for water among the plants would increase C- it would increase the ability all the plants reproduce D-it would have no effect on the plant populations.
The most likely effect on plant populations in a prairie if there was a significant decrease in rainfall would be an increase in competition for water among the plants. So, the correct answer would be B - Competition for water among the plants would increase.
What is a plant population?Plants are dependent on water for a variety of processes, including photosynthesis, growth, and reproduction. In a prairie ecosystem, different plant species coexist and comete for limited resources such as water, nutrients, and sunlight. A decrease in rainfall would lead to a reduction in the available water supply, which would result in increased competition for water among the plants. As water becomes scarcer, plants will need to adapt to survive. Some plants may be better able to tolerate dry conditions or have deeper roots that can access water from deeper in the soil.
Hence, So, the correct answer would be B - Competition for water among the plants would increase.
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describe why rocks found at the bottom of the river are smooth and flat.Please in your own words,My teacher would get mad
The rocks found at the bottom of a river smooth and flat because those are collides with each other.
Explanation:
At the bottom of the river, the rocks which are found are very smooth and the shape of these rocks are flat because the rocks at the bottom collide with each other.
This results in the chipping off parts of the rocks and this results in the surface of the rock to become smooth and becoming flat. Moreover the sand found at the bottom acts as a sand paper creating resistance and smooth-ens the rocks at the bottom of the river.
Abrasion, which is the physical wearing away of a material by friction, is the process that results in the formation of smooth and flat rocks often found at the bottom of rivers.
What is Abrasion?Abrasion is the process of rubbing or scraping away a material, by rubbing against a rough surface or causing friction. This type of mechanical weathering can be brought about by a variety of things, including wind, water, snow, and human action. Rock, metal, plastic and wood are some of the materials that may be subject to abrasion.
This may result in material loss and modification of the appearance and texture of the surface. Natural features such as the smoothness of river boulders or the roundness of pebbles on a beach can also be the result of friction. Sandblasting, grinding and polishing are some examples of industrial abrasive applications.
Therefore, Abrasion, which is the physical wearing away of a material by friction, is the process that results in the formation of smooth and flat rocks often found at the bottom of rivers.
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Present five incidences,as examples, where sports personalities'rights were violated.
Violation of privacy: Instances where sports personalities' personal information, such as private photos or videos, were leaked without their consent, infringing on their right to privacy.
Discrimination and harassment: Cases where sports personalities faced discrimination based on factors like race, gender, or sexual orientation, leading to unequal treatment or exclusion from opportunities.
Contract disputes: Instances where sports personalities' contractual rights were violated, such as unfair termination, breach of contract, or non-payment of agreed-upon fees.
Doping allegations and false accusations: Accusations of doping or performance-enhancing drug use without sufficient evidence, tarnishing the reputation and rights of the athletes.
Media intrusion and sensationalism: Invasion of privacy through aggressive media coverage, paparazzi harassment, or spreading false rumors, affecting the mental well-being and privacy rights of sports personalities.
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what is a solution biology
Answer:
A homogeneous mixture made of two or more substances.
A solution is a homogeneous mixture of solvent and solute molecules. The solute then diffuses through the solvent until the concentration is equal in all parts of the solution. ... A solution can be liquid, solid, or gaseous. Further, a solution can be a mixture of liquids, gases and solids.
Explanation:
The diploid number of chromosomes in a species is always what
A diploid cell always contains two complete sets of chromosomes, which is described as 2n.
What is a diploid cell?Two complete sets of chromosomes are present in a diploid cell. The majority of human cells are diploid, with 23 chromosomal pairs totaling 46 chromosomes. This consists of a pair of sex chromosomes and 22 pairs of autosomes. The mother and father each contributed one copy of each pair of chromosomes to the individual.
Through the process of mitosis, diploid cells replicate and maintain the same number of chromosomes by making a copy of each chromosome and dividing their DNA equally among their daughter cells.
Blood cells, skin cells, and muscle cells are examples of diploid cells. These cells are called somatic cells. Different organisms have different numbers of chromosomes.
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Sometimes, due to inherited disorders, nerve cells in the muscular system do not function properly. What problems might a person have if he or she had one of these disorders?
Answer: common inhereted disorders are: bad eye sight, bad hearing, and autisim and other nurogical disorders!
Explanation:
explain how the bark of a tree is found how does it act as protective tissue
50 pts!!PLEASE HELP HURRY-TIMED-
Answer each question individually
___________________________
1) what effect does the higher percentage of the compact bone portion have upon weight of the bone
2) describe the texture of the marrow from the chicken bone
3) describe the texture of the marrow from the beef bone
6) which narrow was denser?(had more mass in the given volume)? What impact would that have on the overall density of the bone
7) in a short paragraph, relate the density of the bone to the activities and environment of each animal, both bird and cattle (just give like 2 sentences)
Answer:
Explanation:
A higher percentage of compact bone portion typically results in a heavier bone, as compact bone is denser than spongy bone and contains more mineralized tissue.The marrow from a chicken bone is usually soft and gelatinous, with a slightly yellowish-white color.The marrow from a beef bone is typically firmer and more solid than chicken marrow, with a reddish-brown color.I apologize, but there seems to be a question missing from the sequence.The denser marrow was not specified, so I cannot answer this question.The overall density of the bone would be impacted by the density of the marrow, as well as the density of the compact and spongy bone portions.The density of the bone is related to the activities and environment of each animal. For example, birds that fly and need to be lightweight tend to have bones with a higher percentage of air spaces and spongy bone, which reduces weight. Cattle, on the other hand, have denser bones to support their larger bodies and movements on land.