OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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having two identical alleles of a particular gene or genes.
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having two different alleles of a particular gene or genes.
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Either A or B
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None of the above
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Detailed explanation-1: -Heterozygous refers to having different alleles for a particular trait. If the two versions are different, you have a heterozygous genotype for that gene. The relationship between the two alleles affects which traits are expressed.
Detailed explanation-2: -Heterozygous is a kind of organism that has different alleles present in its genotype for the same gene. For example, a pea plant might have both the alleles “Aa” in its genotype for seed texture, or round ("A") or wrinkled ("a") seeds.
Detailed explanation-3: -For example, a ‘heterozygous’ organism for a particular trait means that it possesses dissimilar alleles (e.g. Aa); one of the alleles is dominant and the other is recessive. The dominant allele, according to Mendel’s Law of Dominance, is the allele that will be expressed.