suppose that a single dna base change of an ""a"" to a ""t"" occurs and is copied during replication. is this change necessarily a mutation?
Answers
The DNA sequence has changed, that much is certain. when a single "a" to "t" DNA base mutation takes place and is replicated during replication.
A base, or base-pair, substitution is the term used to describe this kind of mutation. Base substitutions involving the switching of one pyrimidine for another or a mismatched A-A pair for an A-T pair are referred to as transitions; the switching of a purine for a pyrimidine or vice versa is referred to as a transversion. A mutation is a change in our DNA sequence that results from environmental influences like UV radiation and cigarette smoke or mistakes made when the DNA is duplicated.
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Related Questions
a species has a better chance of surviving if it has greater variation in its
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Answer:
size?
Explanation:
I do not really know, I am not in this unit at all
Can anyone help me write hydroelectric essay
INTRODUCTION:
BODY:
CONCLUSION:
Please I really have bad life
Answers
Answer:
A competitive firm’s marginal revenue always equals its average revenue and price. This is because the price remains constant over varying levels of output. In a monopoly, because the price changes as the quantity sold changes, marginal revenue diminishes with each additional unit and will always be equal to or less than average revenue. A conclusion is the last paragraph of your essay, or, if you’re writing a really long essay, you might need 2 or 3 paragraphs to conclude. A conclusion typically does one of two things—or, of course, it can do both: Summarizes the argument. Some instructors expect you not to say anything new in your Hydro-power is the energy harnessed from running water-streams, rivers or any other artificial or natural water flow. It is one of the oldest method of energy production. Even in the medieval period, people used to derive energy from water wheels. The contribution of hydel power in the world energy production scenario is immense and ever-increasing.
Hydro-electricity now contributes nearly 7% of global electricity production when only 15.3 percent of the global exploitable hydro-electric potential is being used. Ever increasing awareness of ecology and social costs of hydro-plant construction failed to debar the increasing use of hydro-electricity.
Explanation:
Explanation:
this is just what is in my mind
Answer:
Introduction/Hook- Begin with a question based on the article. Give at least with three reasons of you position. Give your thesis.
Body- Explain three reasons of why is good or bad idea to invest in hydroelectric energy.
Provide evidence and explain it in each paragraph.
Conclusion- This the last chance to convince the reader to agree with your statement. Do not rewrite the reasons. You can restate your thesis.
If it is an argumented essay, provide the counterclaim (the other side opinion)and prove them that your statement is better.( this usually is the last paragraph of the body)
Explanation:
I'm not good at essays, but I know the basics.
I hopes this helps.
The cell in this part of a plant transport water and nutrients throughout the plant. what is the most likely structure of specialized cells whose function it is to transport water and nutrients throughout a plant
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The xylem is a plant structure (tissue) used to transport water and minerals.
What is the xylem?The xylem is a plant tissue that transports water and dissolved micronutrients in higher plants.
Moreover, the phloem is another vascular plant tissue specialized to transport foods produced by the leaves during photosynthesis.
In conclusion, the xylem transports water and minerals.
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The most likely structure of specialized cells whose function is to transport water and nutrients throughout the plant is the xylem.
What is xylem?Water is transported by the plant from the roots to the leaves through the xylem, a conductive tissue. Water enters the plant body through the root cells until it reaches the xylem, which transports the substance throughout the plant's body.
With this information, we can conclude that the xylem and phloem are conductive tissues, constituents of the plant's vascular system, responsible for the transport and distribution of substances throughout the plant
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Where does wind energy come from? What is a good definition of wind energy?
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The three simultaneous events that result in the wind are as follows: The atmosphere is being heated unevenly by the sun. Unevenness on the surface of the earth. a planet's rotation.
How does wind power function?The primary method of generating electricity from the wind, often known as wind power, is through wind turbines. Using fossil fuels has a considerably greater negative impact on the environment than using wind power, a well-liked, reliable, and renewable energy source. The method for harnessing the wind to produce mechanical or electrical energy is known as wind power or wind energy. Mechanical power is produced by wind turbines from the kinetic energy of the wind.As opposed to a fan, which creates wind using energy, wind turbines create electricity using wind. This is the basic idea of how they operate. An electric generator spins while a turbine's blades, like propellers, are turned around a rotor by the wind.To learn more about wind energy, refer to:
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Hello! Can someone help me with this science virtual lab? I'm having trouble determining the red highlighted area. I've also attached the pictures to the questions for more information.
Answers
The given data from least to greatest. 5.2, 5.3, 5.3, 5.4, 5.5, 5.7, 5.7, 5.8, 5.8, 5.9. The number of data =10 and it is an even number. The middle two terms are 5.5 and 5.7.
What is even number?An even number is defined as a number that is a multiple of 2 is called even number, such as 2, 4, 6, 12, and so on.The sum of two even numbers is even.
If the sum of 6 and another number is even, that another number must be even to get the sum of 6 and another number to be even, while 6 it self is an even number.
Therefore, The given data from least to greatest. 5.2, 5.3, 5.3, 5.4, 5.5, 5.7, 5.7, 5.8, 5.8, 5.9. The number of data =10 and it is an even number. The middle two terms are 5.5 and 5.7.
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If a period contains many fossils of species that previously weren't found, what type of event most likely took place on Earth?Natural selectionMass extinctionPunctuated evolutionPopulation equilibrium
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The answer to this question is the second one: Mass extinction, and this is because, throughout the history of our planet, there have been geological events, such as meteorization that have produced the different phases of the soil, and corresponding to each layer, there's a geological time associated, and in hence, a particular fauna and flora.
If only in a particular layer we can see those species, there are high probabilities of that being because of a massive extinction.
please help!!
What evidence from living species supports the theory that species descended from other species over time?
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Answer:
Humans have things that we don't use such as an appendix. Monkeys can walk on two feet. Parrots can talk. Humans have spinal problems because our spine isn't made to be vertical. We share alot of things with other animals. Think about the what you share with a dog, pig, or a bat. For instance animals that only eat plants have teeth like we humans do. Animals that only eat plants have long digestive processes like humans do. They also do not have claws, they instead have thinner nails that an peel, and tear fruit, and other plantage.
Select the correct statement about the factors that limit the growth of a population.
a. If a factor limits population growth, increasing its availability will increase population growth.
b. The most important factor limiting population growth is the scarcest factor in that area.
c. Density-dependent factors are biotic; density-independent factors are abiotic.
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Why is collecting and analyzing data in a scientific investigation so important?
Answers
Answer:
Collecting and analyzing data is essential in a scientific investigation because it allows researchers to test hypotheses, draw conclusions, and make evidence-based decisions.
What evidence is there that both the ""Point"" and ""Counterpoint"" writers believe that social media is a permanent part of American society? What different conclusion do the writers draw from this point of view? Cite specific textual evidence to support your responses
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The evidence given by the writers that social media is a permanent part of American society is that it's helpful in the society.
How does the writers portray social media?It should be noted that the writers agreed that social media is an integral part of our lives.
A writer argues that it's important for preteens in order for teens to gain experience but the other writer stated that despite it's importance, it's fraught with dangers.
It was also stated that this could have a detrimental effect on young users.
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An astronaut from the ____ was the first human to travel to space
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which axis indirectly shows the relative amount of dna per cell? by what relationship? the data are plotted in a type of graph called a histogram, which groups values for a numeric variable on the x-axis into intervals. a histogram allows you to see how an entire group of experimental subjects (cells, in this case) are distributed along a continuous variable (amount of fluorescence). in these histograms, the bars are so narrow that the data appear to follow a curve for which you can detect peaks and dips. each bar represents the number of cells observed to have a fluorescence level in that interval. this in turn indicates the relative amount of dna in those cells.which axis indirectly shows the relative amount of dna per cell? by what relationship? the x-axis; the dna is naturally fluorescent so there is a positive correlation between fluorescence and dna content. the y-axis; dna content was the dependent variable. the x-axis; the dna was stained, so there is a positive correlation between fluorescence and dna content. the y-axis; the dna was stained, so there is a positive correlation between fluorescence and dna content.
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Which axis subtly depicts the proportion of DNA each cell? DNA was labelled, therefore there is a positive association between fluorescent and DNA content, depending on how the x-axis is arranged.
Humans & almost all other species carry their genetic data in DNA, also known as deoxyribonucleic. The DNA of an individual can be found in several of their cells. The information molecule is DNA. It provides information needed to create proteins, which are some other big molecules. These instructions are distributed throughout 46 lengthy structures called chromosomes that are located inside each of your cells. Numerous smaller strands of Dna, known as genes, make up these chromosomes. Adenine (A), nucleotides (C), purine (G), and pyrimidines are indeed the four different types of shorter chemical molecules together known as nucleotide bases that comprise the linear molecule DNA (T).
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The entire set of DNA in an organism is called the _______________.
Answers
Answer:
genome!
Explanation:
hope this helps :)
Answer:
Gerome
Explanation: sorry if wrong
endocrine glands are also called as glands
Answers
Answer:
Endocrine glands are also known as the ductless glands
Explanation:
Noncoding, repetitive DNA is found in ____________ of chromosomes; these structures play important roles during replication.
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Noncoding, repetitive DNA is found in centromeres and telomeres of chromosomes; these structures play important roles during replication.
#CarryOnLearning\( \mathfrak{watanabeharuto}\)
Assuming the bin were big enough, what would the results be if 10 enzymes were added? 100? Explain.
Answers
Answer:
The results would at one point, stay the same.
Explanation:
What is the purpose of exhalation ?
Answers
Exhalation is known for the flow of the respiratory current out of the organism.
In general ,During inhalation, the ribs move up and outward and the diaphragm moves in. This causes the decrease in space of our chest cavity and the air rushes in.
On the other hand exhalation, occurs when the ribs moves down and inward and the diaphragm moves up. This movement increases the space in our chest cavity and the air is pushed out. Hence, exhalation occurs when intercostal muscles and diaphragm relax, and air is forced out of the lungs and air passages to remove carbon dioxide from the body.
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If a base is deleted, a _____ mutation occurs.
A. substitution
B. insertion
C. point
D. frameshift
Answers
Answer:
Option D. A frameshift mutation occurs.
Answer:
D. frameshift
Explanation:
If a base is deleted, a frameshift mutation occurs. Hope it helps you !!
A molecule of mRNA with the sequence GGUCAUCACUAU experienced a
point mutation that caused the sequence to become GGCCAUCACUAU.
Which of the following terms describes this type of mutation?
Amino acids
Glycine Histidine
Tyrosine
Codons
GGU
CAU
UAU
GGC
CAC
UAC
GGA
GGG
O A. Frameshift mutation
OB. Silent mutation
C. Nonsense mutation
D. Missense mutation
Answers
The term that describes the type of mutation is silent mutation, which is option B. Details about silent mutation can be found below.
What is mutation?Mutation is any change in the nucleotide sequence of DNA molecule.
Mutation can be of different types as follows:
Frameshift mutationSilent mutationNonsense mutationMissense mutationSilent mutation is the type of mutation that does not change the resulting amino acid.
According to this question, codon GGU is changed to GGC but they encode the same amino acid (glycine), hence, it is a type of silent mutation.
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Answer:
a
Explanation:
it’s right
Ancient prokaryotes may have entered primitive eukaryotic cells, remained there, and evolved into organelles. InferIs it likely that nonphotosynthetic prokaryotes could have evolved into chloroplasts? Explain your answer.
Answers
Answer:
yes that is the serial endosymbiosis theory
they have similar inner membrane structure and function
they make their own DNA
cell division is similar
their ribosomes are more similar to prokaryotes than eukaryotes
Explanation:
what are the two major hormones released by the posterior pituitary?
Answers
The two major hormones released by the posterior pituitary are oxytocin and vasopressin.
They also known as antidiuretic hormone (ADH). Oxytocin is primarily involved in childbirth and lactation. During labor, oxytocin stimulates uterine contractions to facilitate the delivery of the baby. After birth, oxytocin aids in milk ejection by triggering the contraction of mammary gland muscles when the baby suckles.
Vasopressin, or ADH, plays a crucial role in regulating the body's water balance. It is released in response to dehydration or low blood volume, and it acts on the kidneys to promote water reabsorption. This process increases the concentration of urine and reduces water loss, ultimately helping to maintain proper hydration and blood pressure levels.
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How does virus and bacterial infections each affect healthy body cells?
Answers
The virus infections happens when a virus gets past the physical barriers of the body (skin, mucus, and so on) and infect a suitable cell, the virus take the genetic machinery of the host cell to replicate, damaging that cell and making more virus that will do the same process with other suitable cells. After the virus use all the cell potential, it will kill the cell and release all the virus that were in the cytoplasm of the host. While bacterial infections have more autonomy, being not necessary the integral machinery of the cell to multiply in the host body, it can act in differrebt ways, such as: crowd out the host tissue and disrupt the function, killing the cells or tissues outright, destroy the metabolic machinery, cause a massive toxic reaction in the immune system, and release toxins that can make the body stop all their functions at once (paralyze the metabolic and general system of the host).
Compare and contrast how people taste sweetness, with how people taste spiciness. PLEASE HELPPP!!!!
Answers
Answer:
spiciness trigger is on one side of the tongue so is the sweetness
Explanation:
i did this
how can an understanding of osmosis be important in developing methods for the same storage of food?
Answers
Osmosis is also used for preserving fruits and meats, though the process is quite different for the two. In the case of fruit, osmosis is used to dehydrate it, whereas in the preservation of meat, osmosis draws salt into it, thus preventing the intrusion of bacteria.
Please help me
will give the brainliest!
Please answer correctly
Answers
Chain 1: oak trees —> moths —> small birds —> weasels
Chain 2: trees and bushes —> moths —> shrews
B
Voles
C
Since part of shrews’ alimentation are beetles and beetles sometimes eat earthworms, which eat dead leaves, a reduction of the dead leaves will reduce de population of shrews as their food will no longer be as abundant.
D
Level y is small on the first diagram because one organism feeds multiple other ones, while on the other diagram, multiple organisms feed other ones.
Hope it helps !
Organisms that obtain food by eating other organisms or the
remains of other organisms are called...
Answers
Describe two pieces of evidence that show that plants cannot make their own food without light
Answers
Answer:
The rate of photosynthesis increases as light intensity increases, I am unsure of another
Explanation:
a coniferous forest characterized by trees such as spruce, fir, and pine and animals such as bears, deer, moose, beavers, and muskrats is known as
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It is known for its coniferous forests, featuring trees such as spruce, fir, and pine, and animals such as bears, deer, elk, beavers, and muskrats. Taiga.
Taiga is a cold subarctic forest. The subarctic is the region of the Northern Hemisphere just south of the Arctic Circle. The taiga lies in between the tundra and to the north and also to the temperate forests to the south part. Taiga, commonly called boreal forest or snow forest in North America, is a biome characterized by coniferous forests, mainly composed of pine, spruce, and larch. The taiga, or boreal forest, is said to be the world's largest terrestrial biome. Taiga comes from the Russian word for swampy pine forest. Biome means an area with a high concentration of flora and fauna, which is why taiga forests are the largest terrestrial biomes in the world. The taiga has a cold climate with little precipitation (rain and snow). Taiga forests are believed to have existed 12,000 years ago.
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Wheat crops are grown in a field. The seeds are genetically identical. Which of the following is the most likely effect of planting an entire field with these seeds?
Answers
If the apple snail population, a primary
consumer, were to decrease what would
the limpkin, a secondary consumer that
eats mainly apple snails, have to do to
adapt to its environment? (Please
explain)
Answers
If the apple snail population were to decrease, the limpkin, a secondary consumer that eats mainly apple snails, would have to find an alternative food source in order to adapt to its environment. This could involve finding other types of snails or mollusks to eat, or potentially switching to a diet that includes other types of prey. The limpkin may also need to range over a larger area in order to locate sufficient food, or it may need to change its foraging behavior in order to more effectively locate and capture its preferred prey. Ultimately, the limpkin's ability to adapt to a decline in the apple snail population will depend on the availability of other suitable food sources and the flexibility of its foraging behavior.