LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ describes a trait that covers over, or masks another form of that trait.
A
recessive
B
gene
C
allele
D
dominant
Explanation: 

Detailed explanation-1: -The trait that is always expressed and masks the effect of other traits is called a dominant trait. They are expressed in both homozygous as well as heterozygous conditions. For example, T is for tall and t is for dwarf.

Detailed explanation-2: -Individuals inherit two versions of each gene, known as alleles, from each parent. In the case of a dominant trait, only one copy of the dominant allele is required to express the trait. The effect of the other allele (the recessive allele) is masked by the dominant allele.

Detailed explanation-3: -In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and the second recessive.

Detailed explanation-4: -Recessive, as related to genetics, refers to the relationship between an observed trait and the two inherited versions of a gene related to that trait.

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