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Fofino [41]
4 years ago
10

What is needed for natural selection to occur? Select all that apply.

Biology
1 answer:
DIA [1.3K]4 years ago
5 0
These are the answers to thisA C D E
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A population of 150 individuals has an allele frequency of 0.2 for the dominant allele (H) and a frequency of 0.8 for the recess
Amanda [17]
Hardy-Weinberg Equation (HW) states that following certain biological tenets or requirements, the total frequency of all homozygous dominant alleles (p) and the total frequency of all homozygous recessive alleles (q) for a gene, account for the total # of alleles for that gene in that HW population, which is 100% or 1.00 as a decimel. So in short: p + q = 1, and additionally (p+q)^2 = 1^2, or 1
So (p+q)(p+q) algebraically works out to p^2 + 2pq + q^2 = 1, where p^2 = genotype frequency of homozygous dominant individuals, 2pq = genotype frequency of heterozygous individuals, and q^2 = genotype frequency of homozygous recessive individuals.
The problem states that Ptotal = 150 individuals, H frequency (p) = 0.2, and h frequency (q) = 0.8.
So homozygous dominant individuals (HH) = p^2 = (0.2)^2 = 0.04 or 4% of 150 --> 6 people
Heterozygous individuals (Hh) = 2pq = 2(0.2)(0.8) = 0.32 or 32% of 150
--> 48 people
And homozygous recessive individuals (hh) = q^2 = (0.8)^2 = 0.64 = 64% of 150 --> 96 people
Hope that helps you to understand how to solve these types of population genetics problems!
6 0
3 years ago
While analyzing a karyotype, geneticists identify a missing chromosome. Which term describes this chromosomal abnormality?
Alinara [238K]

Answer:

Aneuploidy

Explanation:

Aneuploidy is the presence of abnormal normal of chromosomes in a cell. Example: The chromosomes number 45 or 47 chromosomes which is not common in case of human beings.

The normal number of chromosomes in human beings is 46. This results in different syndromes which can cause deformities in the body of the individual.

It leads to miscarriage in most of the cases the survival is very less.

5 0
3 years ago
Read 2 more answers
A river's discharge is generally greatest
gizmo_the_mogwai [7]
"The mouth" is the correct answer
7 0
3 years ago
For a mark-recapture survey, when there were 12 marked elephants recaptured to the total 130 elephants (includes both marked and
Leya [2.2K]

Answer:

456

Explanation:

i have done this question

3 0
3 years ago
Photosynthesis requries a supply of CO2 as well as H2O and sunlight. how do plants obtain these resources?
Leni [432]
H2O is acquired by osmosis in the plants cells, and or through the stomata. CO2 is obtained in the way of the Stomata.
6 0
3 years ago
Read 2 more answers
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