Question

A human population containing 200 individuals has two alleles at the T locus, named T and t. T, which produces tall individuals, is dominant over t, which produces short individuals. If the population has 90 TT, 40 Tt and 70tt genotypes, what will be the frequencies of these two alleles in this population?
A. T, 0.50 ; t, 0.50
B. T, 0.55 ; t, 0.45
C. T, 0.45; t, 0.35
D. T, 0.90 ; t, 0.10

Answer 1

Hint: Inheritance is that the strategy by which hereditary data is given from parent to kid. This is frequently regularly why individuals from the indistinguishable family will in general have comparable qualities.

Complete step by step answer:
A populace with 200 individual has 90 TT, 40 Tt and 70 tt genotypes
For example, the prevailing allele (T) is TT + Tt. e. 90 + 90 + 40 $\Rightarrow$
220 Passive allele (t) is Tt + tt for example 40 + 70 + 70 $\Rightarrow$ 180
Dominant allele = 400 Dominant allele (T) recurrence = 220/400 = 0.55
Recessive allele (t) recurrence = ${\displaystyle \frac{180}{400}}$ = 0.45
Thus, from above clarification it'll be closed the right alternative is B
So, the correct answer is “Option b”.

Additional Information:
$p^2$ + 2pq + $q^2$ = 1 and p + q = 1
p = recurrence of the predominant allele inside the populace q = recurrence of the latent allele inside the populace
$p^2$ = level of homozygous predominant people
$q^2$ = level of homozygous latent people
2pq = level of heterozygous people

Note:
Allele recurrence is likewise a term applied to the recurrence of an allele at a hereditary locus in an extremely populace. The genotyping approach remains the highest quality level of allele recurrence assurance; nonetheless, more financially savvy, a lot simpler to perform DNA logical techniques for examining pooled DNA tests are as of late presented or are as of now under scrutiny. Deciding the allele recurrence of up-and-comer quality variations and single-nucleotide polymorphisms could have useful applications for, however not restricted to, research plan and information translation, recognizing hereditary relationship with specific illnesses or well being related attributes, assessing the quantity of people with infection powerlessness or medication obstruction in an incredibly very populace, and performing developmental and anthropological investigations.