GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
Genotype
|
|
Gene
|
|
Recessive allele
|
|
None of the above
|
Detailed explanation-1: -The masked allele is called recessive and the allele that expresses itself is called dominant. In presence of a dominant allele, the recessive character cannot be expressed i.e., masked. When a recessive allele is present in double dose, only the recessive character is expressed.
Detailed explanation-2: -In contrast to recessively inherited traits, some alleles are dominant. With a dominant trait, an individual will express the associated phenotype even with just one copy of the allele for the trait.
Detailed explanation-3: -When one of the alleles of a heterozygous pair masks the presence of another, recessive allele, it is known as a dominant allele. Understanding genetic dominance, from its discovery to its related variations, is an important step in the overall comprehension of the transmission and expression of genetic material.
Detailed explanation-4: -A recessive gene is a gene whose effects are masked in the presence of a dominant gene.
Detailed explanation-5: -A dominant allele would be able to mask the expression of a recessive allele. A phenotype is the actual physical characteristic expressed.