What is the genetic test for a null allele? Question 4 options: (A/A) phenotype
ID: 197184 • Letter: W
Question
What is the genetic test for a null allele?
Question 4 options:
(A/A) phenotype is dominant to (a/A) phenotype.
(A/A) phenotype is different from (a/A) phenotype.
(A/A) phenotype is same as (a/A) phenotype.
(a/A) phenotype is different from (a/a) phenotype.
(a/A) phenotype is same as (a/a) phenotype.
(A/deletion) phenotype is same as (a/A) phenotype.
(A/deletion) phenotype is different from (a/A) phenotype.
(a/deletion) phenotype is same as (a/a) phenotype.
(a/deletion) phenotype is different from (a/a) phenotype.
(A/A) phenotype is different from (a/A) phenotype and (a/A) phenotype is different from (a/a) phenotype.
(A/A) phenotype is dominant to (a/A) phenotype.
(A/A) phenotype is different from (a/A) phenotype.
(A/A) phenotype is same as (a/A) phenotype.
(a/A) phenotype is different from (a/a) phenotype.
(a/A) phenotype is same as (a/a) phenotype.
(A/deletion) phenotype is same as (a/A) phenotype.
(A/deletion) phenotype is different from (a/A) phenotype.
(a/deletion) phenotype is same as (a/a) phenotype.
(a/deletion) phenotype is different from (a/a) phenotype.
(A/A) phenotype is different from (a/A) phenotype and (a/A) phenotype is different from (a/a) phenotype.
Explanation / Answer
(a/A) phenotype is same as (a/a) phenotype - When a null allele is present, the genotype expresses the same phenotype, if the genotype is homozygous or heterozygous. In this option A is the null allele, and since A is a dominant allele, this genetic test result can confirm the presence of null allele.
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