Answer:
allelic frequency a = 30%
allelic frequency A = 70%
Explanation:
You are studying a population of sparrows in which the phenotype is determined by a single locus. Only two alleles for this locus are known for this population, which are distinguished by the codes 'A' and 'a'. The distribution of phenotypes in the population indicates that 49% of the population is homozygous 'AA', 42% is heterozygous and 9% 'aa' homozygous. How is the allele frequency for 'A' and 'a' determined based on these observations?
According to the case, the allelic frequency for A and a will be searched with the data:
homozygotes AA = 49%
heterozygotes Aa = 42%
homozygous aa = 9%
Frequency of homozygotes 'aa'
(q 2) = 9/100 = 0.09
we can obtain the allelic frequency of a through the following formula:
a (q) = √0.09
The result will be
= 0.3
we change to percentage
= 30%
we have the following formula
p + q = 1
to find the allele frequency A, represented by p
p = 1 - 0.3
we get the following result
p = 0.7
we change to percentage
= 70%
Answer:
The correct answer is E.
Explanation:
The choroid is a vascular layer of the eye that lays <em>between the retina and the sclera.</em> Its main function is to supply oxygen and nutrients to the outer layers of the retina. The layers of the choroid are:
• Haller's layer
• Sattler's layer
• Choriocapillaris
• Bruch's membrane (in contact with the retinal pigment ephitelium)
The choroid is part of the uveal tract, which also contains the iris and the ciliary body.
Answer:
h the intended recipient you are not the intended
Because high accuracy is necessary ! DNA transcript to RNA and then translation happens with a precised sequence to form a unique amino acid !
any mutation can alter the while sequence and thus alter the whole amino acid and there will be a great difference in proteins !
A duplicated chromosome remains tightly paired with its partner at a region called the Centromere
