GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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recessive trait
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heterozygous
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dominant trait
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homozygous
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Detailed explanation-1: -Refers to a trait that is expressed only when genotype is homozygous; a trait that tends to be masked by other inherited traits, yet persists in a population among heterozygous genotypes.
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: -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.
Detailed explanation-4: -Alleles produce phenotypes (or physical versions of a trait) that are either dominant or recessive. The dominance or recessivity associated with a particular allele is the result of masking, by which a dominant phenotype hides a recessive phenotype.
Detailed explanation-5: -A person can get a dominant allele from one parent and a recessive allele from the other parent. The dominant allele masks( hides) the expression of the recessive allele. It is written with UPPER CASE LETTERS.