OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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On a punnett square, two lowercase letters indicate a gene which is
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Homozygous dominant
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Homozygous recessive
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Heterozygous
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None of these
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Explanation:
Detailed explanation-1: -Recessive are always lowercase letters. For example, using ‘A’ as the representative character for each allele, a homozygous dominant pair’s genotype would be depicted as ‘AA’, while homozygous recessive is shown as ‘aa’.
Detailed explanation-2: -For traits that have either two capital letters or two lowercase letters are known as a homozygous trait and for traits that have alternating letters are known as heterozygous traits. In heterozygous alleles, the capital letter will always come first.
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