HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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rr
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TT
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Ff
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Detailed explanation-1: -There are dominant homozygotes (i.e. RR individuals) and recessive homozygotes (i.e. rr individuals). An individual who carries two different alleles (i.e. Rr) is a heterozygote (hetero = different).
Detailed explanation-2: -Recessive alleles only show their effect if the individual has two copies of the allele (also known as being homozygous?). For example, the allele for blue eyes is recessive, therefore to have blue eyes you need to have two copies of the ‘blue eye’ allele.
Detailed explanation-3: -The (RR) genotype is homozygous dominant and the (rr) genotype is homozygous recessive for seed shape.
Detailed explanation-4: -RR – meaning a homozygous with both dominant alleles for a trait. rr – meaning-a homozygous with both recessive alleles for a trait.