Answers
Answer:
True
Explanation:
Mutation is any change that occurs to the nucleotide sequence of a gene. Mutations can be of different types including: deletion, insertion, substitution etc.
Deletion mutation refers to the removal of one or more base from the nucleotide sequence while substitution mutation refers to the replacement of one or more nucleotide bases.
DELETION of a single base in a gene would alter the structure of the gene’s protein more than the substitution of one base for another. This is because deletion mutation can cause the reading frame of the nucleotide sequence to change, leading to a SHORTER STRUCTURE of protein.
Related Questions
The seeds of many grassland plants are distributed by
A. runners
B. migration
a
C. rain
a
D. winds
Answers
Answer:C. WINDS
Explanation:
Which is a way to reduce the risk of mass movements?
a. Develop hillsides with roads so they become stable
b. Allow septic systems to run unmaintained so that they provide a source of nutrients for the soil
c. Build homes in steep terrain in order to stabilize the slope
d. Avoid construction and structures on vulnerable slopes
Answers
Answer:
D
Explanation:
If you build on terrain that's vulnerable you will have movement because you will be disturbing things ..
Why do we need classification
Answers
Which type of tissues are you eating when you eat a plant,
Dermal, Vascular, or Ground?
Answers
Answer: Ground?
Explanation: plant come from ground
What uses bacteria to copy DNA?
O A. Nuclear transfer
O B. Gel electrophoresis
O C. Recombinant DNA technology
O D. Polymerase chain reaction
Answers
Answer:
C.
Explanation:
The method that uses bacteria to copy DNA is recombinant DNA Technology. To copy the DNA, the recombinant DNA method uses bacteria such as E. Coli whose plasmids are combined with various gene to produce the substance that is wanted.
Polymerase chain reaction uses bacteria to copy DNA.Therefore, the correct option is D.
What is polymerase chain reaction?Polymerase Chain Reaction is a laboratory technique used to amplify a specific DNA sequence, making many copies of it. The process involves repeated cycles of heating and cooling a reaction mixture containing the DNA template, primers, and a heat-stable DNA polymerase enzyme.
The DNA polymerase enzyme used in PCR is derived from a bacterium called Thermus aquaticus, which can withstand the high temperatures used in the reaction. By copying the DNA sequence multiple times, PCR enables researchers to study and analyze small amounts of DNA, such as those obtained from crime scenes or ancient fossils.Therefore, the correct option is D.
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What type of organism(s) do photosynthesis
Answers
Answer:
Plants
They turn carbon dioxide and water into glucose and oxygen.
Cheers! :)
Answer:
plants and algae do it
Explanation:
Completion
Complete each statement on the line provided.
20. Many protists alternate between diploid and_________
Phases or reproduction during their life cycle.
Answers
Many protists alternate between diploid and haploid phases or reproduction during their life cycle.
This phenomenon, known as alternation of generations, is a common reproductive strategy observed in various protist groups. The diploid phase, called the sporophyte, produces haploid spores through meiosis. These spores develop into the haploid phase, known as the gametophyte, which produces gametes through mitosis. Fertilization of the gametes results in the formation of a diploid zygote, initiating the diploid phase once again.This alternation between diploid and haploid phases allows for genetic diversity and adaptation in protists, contributing to their evolutionary success.
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what is the function of brain hxhtojuqat
Answers
Answer: buuu
Explanation:
Which of the following describes the cells of unitary smooth muscle?
A. they depend upon recruitment using the autonomic nervous system
B. they are used for vision and hair raising
C. they exhibit spontaneous action potentials
D. they consist of muscle fibers that are structurally independent of each other
Answers
The cells of unitary smooth muscle consist of muscle fibers that are structurally independent of each other. Option D is the right choice.
The cells of unitary smooth muscle, also known as single-unit smooth muscle, are connected by gap junctions and function as a single unit. They are found in the walls of hollow organs such as the uterus, bladder, and digestive tract. Unlike multi-unit smooth muscle, which consists of individual muscle fibers that are innervated and controlled by the autonomic nervous system, unitary smooth muscle cells exhibit spontaneous action potentials and are capable of generating contractions without neural input. This property is known as myogenic activity.
Additionally, unitary smooth muscle cells are not typically under conscious control, and they are not involved in functions such as vision or hair raising. They are able to contract rhythmically and in a coordinated manner to move substances through the organs in which they are found.
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By having juvenile dinosaurs live in a different niche than the adults decreased competition between the adults and juveniles. True or False
Answers
True: By having juvenile dinosaurs live in a different niche than the adults decreased competition between the adults and juveniles.
Tarbosaurus bataar is the juvenile species of the dinosaurs found 70 million years ago. The adult species the Tyrannosaurus rex has a close relationship with the juvenile or the young species. The juvenile species of these dinosaurs lived in a different niche than the adult species. They were fast and agile and went after hunting smaller prey for their survival.
T.rex adults were comparatively larger than their younger ones. They had larger skulls, stronger bites, large muscle attachments, and specialized teeth. While the juvenile species were deprived of these features. This could be the reason why juvenile species faced decreased competition than adults.
Therefore, from the above answer, we can say that the given statement that having juvenile dinosaurs live in different niches than the adults decreased competition between the adults and juveniles.
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Check all of the following mechanisms by which early colonizers may positively impact the occurrence of other species through succession. Check All That Apply Early colonizing trees that establish a new habitat may block the sun, inhibiting smaller weeds from colonizing the habitat.Early colonizing trees that establish a new habitat may block the sun, inhibiting smaller weeds from colonizing the habitat. Colonization by plants may provide habitat, facilitating colonization of animal species.Colonization by plants may provide habitat, facilitating colonization of animal species. Early colonizing plants may increase the nutrient level of the soil, facilitating the colonization of other plant species.Early colonizing plants may increase the nutrient level of the soil, facilitating the colonization of other plant species. Animal colonizers may increase pollination of some plant species, facilitating their colonization.Animal colonizers may increase pollination of some plant species, facilitating their colonization. Plant species may alter the chemical composition of the soil, inhibiting other plant species.Plant species may alter the chemical composition of the soil, inhibiting other plant species.
Answers
Answer:
Colonization by plants may provide habitat, facilitating colonization of animal species.
Early colonizing plants may increase the nutrient level of the soil, facilitating the colonization of other plant species.
Animal colonizers may increase pollination of some plant species, facilitating their colonization.
Explanation:
The plants provides habitat as well as food to organisms that helps in the colonization of that organisms because every organism needs food and living place for its survival. Some plants increase the nutrient level in the soil through fixation of nitrogen which leads to the colonization of other plant species in that environment. Some animals causes pollination of plants which helps them in their colonization so all these organisms have a positive impact on the occurrence of other species.
Explain how enzymes assist the process of absorption.
Answers
Enzymes play a crucial role in the process of absorption by breaking down large molecules of food into smaller, more easily absorbable molecules.
In the digestive system, enzymes are produced by specialized cells and secreted into various parts of the digestive tract. For example, enzymes such as amylase and lipase are secreted into the mouth and small intestine, respectively, to break down carbohydrates and fats.
Once the food molecules are broken down into their smaller components, they can be more easily absorbed through the walls of the digestive tract and into the bloodstream. Enzymes also help to facilitate the movement of these molecules across the cell membrane and into the cells of the body, where they can be used for energy or stored for later use.
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Help please don’t ignore I’ll mark you as brainliest , name the following organelles
Answers
Answer:
9. ribosomes
10. lysosomes
11. endoplasmic reticulum
12. centrioles
A person who has allergies has a compromised immune system because the body’s immune system
Answers
Answer:
overreacts to an antigen.
Explanation:
A person who has allergies has a compromised immune system because the body’s immune system overreacts to an antigen.
Hope this helps!
which of the following is a cause of a DNA mutation?
Answers
1.DNA Mutations are caused by environmental factors known as mutagens.
2.Types of DNA mutagens include radiation, chemicals, and infectious agents.
3.DNA Mutations may be spontaneous in nature.
HELPPPPPPP
1. Add these descriptive labels to the appropriate protein shape in the figure: folded paper and spiral.
Answers
The second diagram is the beta pleated sheet which is the folded paper shape
Calculate the population density of 900 sheep in a plot of land that is 3.00 km by 2.00km
Answers
The population density of the 900 sheep in the given plot of land is 150 sheep per square kilometer.
The population density of 900 sheep in a plot of land that is 3.00 km by 2.00 km can be calculated by dividing the total number of sheep by the area of the land.
First, we need to calculate the area of the land. The area can be found by multiplying the length and width of the plot of land:
Area = length × width = 3.00 km × 2.00 km = 6.00 km²
Next, we divide the total number of sheep by the area to calculate the population density:
Population Density = Total number of sheep / Area = 900 sheep / 6.00 km²
Performing the calculation, we find:
Population Density = 150 sheep/km²
Therefore, the population density of the 900 sheep in the given plot of land is 150 sheep per square kilometer.
Population density is a measure of the number of individuals (in this case, sheep) per unit area. By dividing the total number of sheep by the area of the land, we obtain the population density in terms of sheep per square kilometer. In this case, the population density is 150 sheep/km², indicating that there are, on average, 150 sheep within each square kilometer of the land.
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Why do phospholipids form a bilayer in water?
Answers
Answer:
When phospholipids are mixed with water, they spontaneously rearrange themselves to form the lowest free-energy configuration. This means that the hydrophobic regions find ways to remove themselves from water, while the hydrophilic regions interact with water. The resulting structure is called a lipid bilayer.
Answer:
When phospholipids are mixed with water, they spontaneously rearrange themselves to form the lowest free-energy configuration. This means that the hydrophobic regions find ways to remove themselves from water, while the hydrophilic regions interact with water. The resulting structure is called a lipid bilayer
Explanation:
Organ system campaign advertisement
Answers
Introducing the Organ System Campaign - advocating for the health and well-being of your body's organ systems!
Our goal is simple - to raise awareness about the importance of taking care of all your body's organ systems. Each organ system plays a vital role in keeping your body functioning properly, and neglecting any one of them can have serious consequences for your overall health.
From the circulatory system, which pumps blood and oxygen to your organs and tissues, to the respiratory system, which brings in oxygen and expels carbon dioxide, to the digestive system, which breaks down food and absorbs nutrients, every system is crucial.
Our campaign will focus on educating people about healthy habits, such as eating a balanced diet, staying hydrated, getting enough exercise, and getting regular check-ups with your doctor. We want to empower individuals to take control of their health and make choices that benefit their body's organ systems.
Join us in the fight for healthy organ systems - because a healthy body is a happy body!
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Explain how diffusion restored homeostasis during the dialysis treatment.
Answers
During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.
During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.For more such questions on Dialysis:
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HELP ME PLZZZZZZZZZZZZ Clark decides to measure the volume of a rock he found outside. He fills a graduated cylinder with water to 30mL. Places the rock into the water and the water level rises to 37mL. What is the volume of the rock?
Answers
Answer:
The correct answer is - 7 cc or ml.
Explanation:
Given:
The volume of water in a graduated cylinder = 30 mL
The volume of rock = ?
Final volume = 37 ml
Formula:
If an object is placed in water, then the amount of water that is displaced or increased by submerging the object is equal to the volume of the object.
Vi + Vo = Vf
Vi = initial volume
Vo = volume of object
Vf = final volume
Solution:
Placing the values in formula -
30 + Vo = 37
Vo = 37 - 30
Vo = 7 ml or cc.
Why are watersheds important for the maintenance of water quality? Choose all that apply.
Select 2 correct answer(s)
Question 3 options:
their soil and plants can filter and clean water
they can transfer pollutants
they cause precipitation and acid rain
they cause floods
Answers
Answer:
A. their soil and plants can filter and clean water
and
B. they can transfer pollutants
Explanation:
i took the same quiz and got an A! :D
Watersheds can transfer pollutants and their soil and plants can filter and clean water. So, the correct option is A and B.
What are Watersheds?Watershed also known as drainage basin defines an area of land where all flowing surface water converges at a single point, such as a river mouth, or flows into another body of water, such as a lake or sea.
The size of a watershed is defined on several scales referred to as its Hydrologic Unit Code (HUC) based on the geography most relevant to its specific area. A watershed may be small, such as a minor inland lake or a county.
Some watersheds cover thousands of square miles that includes rivers, streams, lakes, reservoirs, and underlying groundwater hundreds of miles inland. These can transfer pollution causing agents and clean the water.
Thus, watersheds can transfer pollutants and their soil and plants can filter and clean water. So, the correct option is A and B.
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Where is the heart situated in the body and vertebrates ?
Answers
Answer:
The Heart is situated in the Left side of the body
Which part of the DNA model is most directly associated with the coding of genetic information?
Answers
The linear arrangement of nucleotides in DNA contains genetic information. A hydrogen bond between the G-C and A-T base pairs holds each DNA molecule's two complementary strands of nucleotides together to create a double helix. Thus, option D is correct.
What part of DNA code for genetic information?Each sugar group has a nucleotide base, a ringed nitrogen molecule, and it is the arrangement of these bases that encodes the genetic instructions for making proteins.
Genes store the instructions needed to produce particular proteins, which are responsible for an individual's unique characteristics.
Each gene can have many alleles, or variants, that each code for a different version of the desired trait. A cell's chromosomes, which each contain several genes, are home to those genes.
Therefore, nucleotide part of the DNA model is most directly associated with the coding of genetic information.
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What occurred during immune system development to result in the presence of antibodies that can bind to the thyroid receptor? g
Answers
Answer:
If the immune system has a destructive and autoimmune response, it produces specific antibodies, which bind to the receptors of the thyroid cells and destroy them thinking that they are antigens or factors not characteristic of the body.
Explanation:
This happens because the thyroid cells do not present on its surface the histocompatibility complex, which is a surface protein similar to the proper and non-proper "seal", that is, it is the demarcation by which the antibodies and the cells are guided to recognize what foreign to the organism.
The histocompatibility complex is sometimes absent or rather mutated, thus generating that these cells are considered not their own and that the antibody is a receptor in order to generate the autolysis pathway or even the immune defense pathway.
Now, set the mass of both balls to be equal. Increase the distance between them by pulling one of the balls away from the other. To pull a ball away, click on the ball and drag it. What happens to the force arrows between the two balls? What does this mean in terms of gravity?
Answers
Answer:
it shows that both balls are using push and pull
Explanation:
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Answer:
Explanation:
When the distance between the balls increases, the size of the arrows decreases. This shows that the gravitational pull between the balls also decreases.
The human body contains about 5 liters of blood. The liquid portion of the blood is called ____________________________________________and makes up about 55% of the blood volume. The rest of the blood is made up of the formed elements
Answers
Answer:
The liquid portion of the blood is called Plasma
Answer: Plasma
Explanation:
Blood plasma is a yellowish liquid component of blood that holds the blood cells of whole blood in suspension. It is the liquid part of the blood that carries cells and proteins throughout the body. It makes up about 55% of the body's total blood volume
What is the relationship between the economy and environmental quality? (3 points)
There is no relationship between the economy and environmental quality.
Generally speaking, better economies are associated with worse environmental quality.
Generally speaking, environmental quality initially declines and then improves as an economy grows.
Generally speaking, better economies are associated with better environmental quality.
Answers
Answer:
There is no relationship between the economy and environmental quality.
Environmental quality is a term related to different environmental cues such as, for example, air/water pollution, presence of noise, access to open public spaces, the visual impact of buildings, etc. Environmental quality can affect human health and the quality of life of the individuals in a given area/city. For example, water contamination is linked to the transmission of different diseases (e.g., gastroenteritis; encephalitis, hepatitis A), thereby negatively affecting human health and the quality of life of persons who don't have access to potable water. Similarly, poor air quality can be associated with respiratory diseases and cancer. The improvement in environmental quality does not necessarily involve economic resources. It is possible to improve environmental quality by:1-protecting people against climate change;
2-improving water/air quality;
3-reducing pollution;
4-reducing waste and increasing recycling;
5-limiting the visual impacts of new infrastructure; etc.
In conclusion, there is no direct association between the economy and environmental quality.
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What is an example of a gene that affects human digestion?
PLS HELP I WILL GIVE YOU BRINLEST
Answers
Answer:
Lactase persistence
Explanation:
Lactase is the enzyme responsible for the digestion of the milk sugar lactose and its production decreases after the weaning phase in most mammals, including most humans.
90% H₂O
10%
solute
85% H₂O
15% solute
45% H₂O
65%
solute
75% H₂O
25% solute
30% H₂O
10%
solute
90% H₂O
10% solute
2
5.
8.
40% H₂O
60%
solute
90% H₂O
10% solute
90% H₂O
10%
solute
63% H₂O
37% solute
82% H₂O
18%
solute
25% H₂O
75% solute
3.
6.
9.
75% H₂O
25%
solute
80% H₂O
20% solute
50% H₂O
50%
solute
50% H₂O
50% solute
90% H₂O
10%
solute
80% H₂O
20% solute
Answers
A hypotonic solution is one in which there is more water than solutes, such as when there are 10% solutes and 85% water. When there are more solutes than water, it is called a hypertonic solution, such as 40% water and 60% solutes, whereas in an isotonic solution, the concentration is the same.
What is the significance of the different solutes in the concentration?There are different solutions based upon the solutes and the solvent ratios, such as when the cell is placed in the hypertonic solutions, the cell removes water to the outside, and when placed in the isotonic solutions, the size of the cell remains the same.
Hence, a hypotonic solution is one in which there is more water than solutes, such as when there are 10% solutes and 85% water. When there are more solutes than water, it is called a hypertonic solution, such as 40% water and 60% solutes, whereas in an isotonic solution, the concentration is the same.
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