1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ann [662]
3 years ago
9

The gene frequency for a particular trait in a population was determined to be 80% A (dominant allele) and 20% a (recessive alle

le). Fifty years later, the gene frequency was determined to be 60% A and 40% a. What does this change most likely indicate about the gene pool?
Biology
2 answers:
timofeeve [1]3 years ago
4 0

Answer:

Explanation:

Microevolution is a change in the frequency of gene variants, alleles, in a population, typically occurring over a relatively short time period.

Population genetics is the field of biology that studies allele frequencies in populations and how they change over time.

Allele frequency refers to how common an allele is in a population. It is determined by counting how many times the allele appears in the population then dividing by the total number of copies of the gene.

\text{Frequency of allele }AFrequency of allele Astart text, F, r, e, q, u, e, n, c, y, space, o, f, space, a, l, l, e, l, e, space, end text, A ==equals \dfrac{{\text{Number of copies of allele }A \:{\text {in population}}}}{\text{Total number of }{\text{copies of gene in population}}}  

Total number of copies of gene in population

Number of copies of allele Ain population

​  

start fraction, start text, N, u, m, b, e, r, space, o, f, space, c, o, p, i, e, s, space, o, f, space, a, l, l, e, l, e, space, end text, A, start text, i, n, space, p, o, p, u, l, a, t, i, o, n, end text, divided by, start text, T, o, t, a, l, space, n, u, m, b, e, r, space, o, f, space, end text, start text, c, o, p, i, e, s, space, o, f, space, g, e, n, e, space, i, n, space, p, o, p, u, l, a, t, i, o, n, end text, end fraction

The gene pool of a population consists of all the copies of all the genes in that population.

asambeis [7]3 years ago
3 0

Answer:

It has remained stable.

It is evolving through natural selection.

It has become predominantly recessive.

It is affected by climate change.

Explanation:

it has to be A

You might be interested in
When the concentration of dissolved particles is the same throughout a solution , the system is said to be in ________________.
Wittaler [7]

The answer is isotonic solution

4 0
3 years ago
Albinism is a somatic recessive condition resulting from the inability to produce the dark pigment melanin in skin and hair. A m
Natali5045456 [20]

Answer:

There is 1/6 of the probability that at least one of the children is albino.

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files.

Download pdf
6 0
3 years ago
You and your friend want to start a soda company for ingredients you have sucrose carbon dioxide gas concentrated juices from di
Dmitrij [34]

Answer:

Soda can be prepared using sucrose, carbon dioxide gas, concentrated juices from different fruits in water.

For making soda, concentrated juices with required fruit flavor in water is used. The temperature of water should be low. Then required amount of sucrose is added. At the end, carbon dioxide is added to the tanks and pump it in under pressure before bottling which act as carbonic acid and add acidic flavor to the soda.

<em>The temperature should remain low because carbon dioxide gas dissolve more easily at low temperature and high pressure also support carbonation of carbon dioxide gas.</em>

Maintaining low temperature is beneficial to minimise the cost of energy and CO2 emission as well.

6 0
4 years ago
The image shows the evolution of a species of fish. A few fish from a population developed different social behaviors and evolve
adell [148]

According to the image, the fish underwent sympatric speciation. The new species of fish had mating seasons that were different from that of the original fish. Because of the differences in mating seasons, the fish underwent reproductive isolation. This mode of isolation would be temporal.

Sympatric speciation happens within a population of an organism that gets isolated reproductively due to differences in their mating periods. This time dependent isolation is called temporal isolation. Example, a fish population can split into two if some of the fishes start mating early in the spring while the rest mate late in the autumn. The spring-mating population will not become compatible to mate with the late-autumn-mating population.

7 0
3 years ago
Read 2 more answers
Please help i’ll be giving a brainliest to the person with the correct answer
lapo4ka [179]

Answer:

all

Explanation:

its all of the above. 2 or more of them are the answer, therefore meaning it has to be all of the above.

8 0
3 years ago
Other questions:
  • What is meant by double fertilization? Select all that apply. A diploid zygote is formed. Two diploid zygotes form. Endosperm wi
    6·1 answer
  • By growing on the trunk or branch of a tree, a lichen gains height and exposure to sunlight for photosynthesis. The tree is not
    15·1 answer
  • Dissolved oxygen (do) is critical to the ecology of an aquatic ecosystem. it can be affected by temperature, pollution, and nume
    14·1 answer
  • Bioflix activity: membrane transport -- vocabulary review can you match the processes involved in membrane transport to their de
    8·1 answer
  • The interaction of which two systems provides the molecules needed for the metabolic activity that takes place at ribosomes?
    8·1 answer
  • The way of synthesizing food in green plants and autotrophic bacteria are same. Do you agree with the statement? Give reason.
    10·1 answer
  • Lindeman developed a classification of organisms based on
    5·1 answer
  • Some salmon have been genetically engineered to grow more quickly.the salmon are raised in pens set in rivers or in the sea. dec
    15·2 answers
  • Which of the following statements is not a similarity between a habitat and an ecosystem?
    7·1 answer
  • What determines the role a tissue plays?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!