How can natural selection lead to change in allele frequency

Answers

Answer 1

Answer:

Natural selection can cause microevolution, or a change in allele frequencies over time, with fitness-increasing alleles becoming more common in the population over generations. ... It refers to how many offspring organisms of a particular genotype or phenotype leave in the next generation, relative to others in the group.


Related Questions

Characteristics or adaptations that help antartic fish survive in their habitat?

Answers

Answer:

Antifreeze glycoproteins. (AFGP's)

Explanation:

Antifreeze glycoproteins are antifreeze compounds added into their blood at very high compounds.

Which of the following best describes the genetic complement in each
daughter cell at the conclusion of meiosis?
A. A haploid set of chromosomes that are a recombination of the
parents' chromosomes
B. A diploid set of chromosomes that are identical to the parents'
chromosomes
C. A diploid set of chromosomes identical to the other daughter cells'
chromosomes
D. A haploid set of chromosomes that are identical to the parents'
chromosomes

Answers

Answer:

A

Explanation:

Meiosis end in four daughter cells that are haploid and contain half the chromosomes as the parent cell and genetically different from the parent cell and from each other, so A would be the right answer.

A haploid set of chromosomes that are a recombination of the parents' chromosomes  best describes the genetic complement in each daughter cell at the conclusion of meiosis.

What do you mean by meiosis?

Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells.

Moreover, meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells.

Meiosis is important for three main reasons: it allows sexual reproduction of diploid organisms, it enables genetic diversity, and it aids the repair of genetic defects.

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If mother has type AB Blood and father has A blood type what percentage of their children are likely to have Type A blood?

Answers

Answer:

blood with certain proteins clump together when exposed to certain antibodies. A patient has type AB blood. If they received a transfusion of type B blood, predict and explain what would happen. Agglutination would occur because a person with type B blood cannot receive AB blood because they have A antibodies.

Explanation:

14 POINTS! A sound with a large amplitude will trasmit a

A. lot of energy
B. high frequency
C. long wavelenght
D. low intensity

Answers

C........................
the answer is C hope this helped

(GIVING BRAINLIEST!!)

What causes water to runoff?

A) The sun heats up Earth's surface.
B) Water vapor condenses into water droplets.
C) Water does not soak into the ground.
D) There is a small amount of precipitation.

Explain why.

Answers

It’s C the answer is C!!!

Answer: Runoff occurs when there is more water than land can absorb. The answer you’re looking for is C.

Explanation: The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. ... Glaciers, snow, and rain all contribute to this natural runoff. Runoff also occurs naturally as soil is eroded and carried to various bodies of water.

how are sexual traits adaptations

Answers

Answer:

stronger and longer organ are able to mate more with females, whereas the shorter one didn't stand a chance.

Biotic and abiotic factors are both essential in shaping an ecosystem.

True
False

Answers

Answer:

True

Explanation:

biotic and abiotic factories are both essential in shaping an ecosystem true or false
answer : true

Can you change a cladogram?
I may give brainliest to the right answer.

Answers

Answer:

Yes you can but you would need solid evidence to do it, we used to think that lizards and crocs were more closely related because of their appearance or phylogeny but with new and better evidence we now hypothesize (clads are just hypotheses) that birds and crocs are more related

Explanation:

Answer:

no you can not

Explanation:

DUE TODAY helppp pleaswee

Answers

The answer would be point b

(GIVING BRAINLIEST!!)

There are some clouds forming in the sky on a hot day, but inside the clouds, there are freezing temperatures. Which form of precipitation would you expect?

A) Hail
B) Rain
C) Sleet
D) Snow

Answers

Answer:

A) Hail

Explanation:

The answer is
A) Hail

*
What is the male part of the flower called

Answers

Answer:

anther

Explanation:

Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther. Anther: The part of the stamen where pollen is produced. Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma.

Which of the following is one of the most abundant elements in all living
things?
A. Tin
B. Titahsum
C. Silver
D. Carbon

Answers

carbon is the answer. hope it helped

I’d appreciate it very much, if someone would help me with these two questions

Answers

Answer:

1. C

2. D

Explanation:

In an experiment, which aims at solving a particular problem or answering a scientific question about nature, the scientific method is employed. The scientific method contains the following steps:

- Making an observation.

- Asking a question.

- Formulating a hypothesis

- Testing the hypothesis via experimentation

- Analyzing the results

- Conclusion

According to question 1, the PURPOSE of an experiment portrays what is about to be done in a question format. For example, a purpose can go this: What will be the effect of pesticides on the growth of cowpea?. Furthermore, the PURPOSE helps make a research and state a hypothesis in the next step.

- In the analysis of result, the qualitative or quantitative approach is used. The QUANTITATIVE method involves the use of numbers or numerical data to express the outcome or result of the experiment. By counting or measuring, a numerical data is collected and given a unit depending on what is being measured

DNA Replicates at which phase of the cell cycle? *
A. G1
B. S
C. G2
D. Mitotic (mitosis and cytokinesis)

Answers

The correct answer is S phase

Answer:

B. S

Explanation:

Correct

(GIVING BRAINLIEST!!)

Which type of precipitation is most likely to occur when both air and cloud temperatures are above freezing?

A) Rain
B) Snow
C) Hail
D) Sleet

Answers

Answer:

it should be A or rain to be specific

Answer:

rain

Explanation:

If the ar is above freezing, the precipitation will most likely be rain. If the air is below freezing, the precipitation will most likely be snow. When air temperature is only a few degrees above freezing, precipitation may fall as sleet. Hail is most commonly formed within the cumulonimbus clouds of thunderstorms.

SpongeBob and his pal Patrick love to go jellyfishing at Jellyfish Fields! The fields are home to a special type of green jellyfish known as Goobers and only really great jellyfishermen are lucky enough to catch some on every trip. Many of the jellyfish are yellow (BB) or blue (bb), but some end up green as a result of incomplete dominance. What would happen if SpongeBob and Patrick crossed two "goobers” or green jellyfish? Complete the Punnett square to help you determine the probability for each color of jellyfish. What percentage would be "goobers" (green)? 0% 25% 50% 100%​

Answers

The  Punnett square to help you determine the probability for each color of jellyfish percentage would be "goobers" are 50%.

What is the goobers?

Goobers is a slang term used to refer to someone who is naive or foolish. It can be used to describe a person who is easily taken advantage of or someone who is generally inept. Goobers are often seen as endearing and often have an innocent quality about them. They are also often seen as lacking in common sense and understanding of the world around them.

BB BB BB BB

bb bb bb bb

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A cell is placed in a container of salt water that has 42% salt and the cell has 15% salt inside:


a. What type of solution is it?


b. what direction will the water go?

Answers

Answer:

it is a mixture of salt and solute.

Explanation:

it the north direction

It’s a mixture of salt and Solute therefor it’s goes in a north direction

Bacteria are able to reproduce very quickly through a process known as binary fission. Binary fission requires only one parent. Based on this information which inference is most accurate?

Answers

Answer:

this is called asexual reproduction

Explanation:

it is where one parent makes a clone of themselves through budding.

A certain species of trilobite is known to have lived 300 million years ago. If this index fossil was found in a rock layer containing other fossils, what could you infer about the other fossils
a The rock layer killed the trilobite and the other fossils
b The other fossils are about 300 million years old
c The organisms that formed the other fossils are still living.
d The rock layer formed before the trilobite and other organisms

Answers

Answer:

b The other fossils are about 300 million years old

Explanation:

From the description of the problem given, we can correctly conclude that the other fossils are about 300 million years old and even the rock layers formed around that period in time too.

Fossils are the preserved remains of organisms that has once lived. Through the principle of relative dating we can determine the age of fossils and those of other related ones. According to the principle of fossil and fauna succession, "fossils succeed one another in a predetermined form". So, the fossils occurring together within the rock layers are of the same age.

A piece of wood that measures 3cm by 6cm by 4cm has a mass of 80g.
What is the density of the wood?

Answers

Answer:

1.1 would be the densiry

explanation

p=m/v is the density formula p being density and m being mass and v being volume

multiply 3 by 6 by 4 to get volume of 72

80÷72 = 1.1

How do fungi reproduce asexually by budding????

Answers

Answer:

Answer is on the pic.

Explanation:

I hope it's helpful!

Someone please help I took the picture this is my last question on my homework

Answers

Answer:

According to the image that represents a cell in the human body, the true statement is that structure 4 is the cell membrane that provides exchange of O₂ & CO₂.

Explanation:

In cells, the cell membrane acts as a semi-permeable barrier to the passage of substances, including nutrients and oxygen (O₂).

One of the functions of the cell membrane is to allow the exchange of O₂ —necessary for the cell— and carbon dioxide (CO₂), a product of cell metabolism that must be removed.

In the image, the structure identified with the number 4 corresponds to a cell membrane of human cells that provides this gas exchange.

The other options are not correct because:

Structure 1 is a ribosome, not a chloroplast. Structure 2 is the nucleus, not a vacuole containing DNA. Structure 3 is a mitochondria, but protein synthesis does not occur there.

The floor of the Atlantic Ocean is split in two by an immense volcanic chain that spans more than 40,000 miles around the
globe. True or false ?

A. True
B. False
It’s science FYI

Answers

The statement is true because the  floor of the Atlantic Ocean is split by an immense volcanic chain that spans more than 40,000 miles around the globe

What is the atlantic ocean?

The atlantic ocean is a massive body of water that spans across approximately one-fifth of Earth's surface. It is the large body of water that separates Africa and Europe.

The  floor of the Atlantic Ocean is split by an immense volcanic chain that spans more than 40,000 miles around the globe hence the assertion is true.

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The molecules shown in this image are able to cross the cell membrane
through facilitated diffusion. How will they be transported?

A. The molecules will move through channels in the membrane hy
proteins from inside the cell to outside the cell.

B. The molecules will move directly across the membrane from
inside the cell to outside the cell.

C. The molecules will move through channels in the membrane proteins from outside the cell to inside the cell.

D. The molecules will move directly across the membrane from the outside the cell to inside the cell.

Answers

Answer:

The molecules will move directly across the membrane from

inside the cell to outside the cell.

Explanation:

Ape-x

Facilitated diffusion is the type of transportation that moves the ions and the molecules. The molecules are transported directly through the membrane from inside to outside. Thus, option B is correct.

What is facilitated diffusion?

Facilitated diffusion is the transportation of the molecules and ions across the cell membrane along the concentration gradient. It is a passive transport that involves the movement down the gradient.

The molecules are transported by the membrane proteins that facilitate their movement from inside of the cell towards the outer space of the cell. Unlike simple diffusion, facilitated diffusion uses energy in the form of ATP.

Therefore, the molecules present inside the cells will move directly towards the outside of the cell.

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Mary poured 40,000 cm3 of water into an aquarium that

is shaped like a rectangular box. If the length and width

of the aquarium are 40 cm and 80 cm, respectively, what

is the height, in centimeters, of the water in the

aquarium?

Answers

Answer:

The correct answer is - 12.5 cm3.

Explanation:

Given:

volume = 40000 cm3 (aquarium an hold water)

length and width = 40 cm and 80 cm

Height = ?

Formula:

Volume = length*width*height

Solution:

Putting the value in the formula -

40000 = 40*80*h

h = 40000/3200

h = 12.5

how do homologous structures develop

Answers

Answer:

Explanation:

Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor.the existence of homologous structures adapted to different purposes as the result of descent with modification from a common ancestor.

Please help as soon as possible!!!!!!!!!

Answers

Answer: it might be chemical 1, but I could be wrong

Explanation:

How is environmental health related to personal health?

Answers

Explanation:

preventing human injury and illness and promoting well-being to be well


Help plz and can you plz use the key terms

Answers

Answer:

srry im not in this unit yet

. In the formula Na2SO3, how many atoms of sulfur are represented

Answers

1 atom of sulfur is represented
2 atoms of sulfur are represented
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