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]
2 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]2 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]2 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
A square jaw is recessive to a round jaw (dominant), It is possible for two parents with a square jaw to have a child with a rou
sukhopar [10]
No, it would not be possible since both alleles in the genotype are recessive. If the alleles were xx for square jaws, then
x x
x xx xx

x xx xx

would be the possible genotypes for the offspring
6 0
3 years ago
The sequence of ________________ in a DNA molecule determines the protein that will be produced. A) lipids B) nucleotides C) pro
Nuetrik [128]
The sequence of B) nucleotides in a DNA molecule determines the protein that will be produced.
7 0
2 years ago
Read 2 more answers
Which action is an important part of scientific methods?
kherson [118]

Explanation:

making hypotheses is a scientific method

4 0
2 years ago
Read 2 more answers
1 pts
WARRIOR [948]

Answer:

I'm pretty sure the answer is natural selection.

Explanation:

Natural selection acts on phenotypic variations in populations.

5 0
3 years ago
Please help me with this question.
guajiro [1.7K]

Answer:it is a

Explanation:because it just makes sence.lol

3 0
3 years ago
Other questions:
  • Both bacteria and amoeba are unicellular organisms. Bacteria are considered to be prokaryotes, whereas amoebas are considered to
    15·1 answer
  • If a trait made an organism less likely to survive and reproduce what would happen to the allele for that trait?
    6·1 answer
  • After the gram staining procedure, you realized you went too fast and have forgetten to apply the 95% ehtanol. What might be the
    7·1 answer
  • What are the three types of muscle tissue?
    7·2 answers
  • Why psilopsida are called early tracheophytes​
    13·2 answers
  • Ome species of present day protists contain living organisms within their cytoplasm. Paramecium bursaria are hosts for zoochlore
    15·1 answer
  • Need help ASAP !!!!!
    14·1 answer
  • Help quick pls! bio test! 10 pts!
    6·2 answers
  • HELP!
    15·1 answer
  • If the researcher compares mRNA from inside the nucleus to mRNA from the ribosomes, what will be found
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!