OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A Punnett square shows all of the following EXCEPT
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All possible results of a genetic cross.
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The possible genotypes of the offspring.
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The alleles in the gametes of each parent.
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The actual genotypes of the offspring.
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Explanation:
Detailed explanation-1: -Each box in the inside of the square represents a possible offspring this pair of parents can produce. The genotype of the offspring is determined by combining the gametes of each parent, as shown in the picture below.
Detailed explanation-2: -To construct a Punnett square, the genotypes of both parents must be known. One parent’s alleles are listed across the top of the table, and the other parent’s alleles are listed down the left hand side. The resulting offspring genotypes are produced at the intersection of the parent’s alleles.
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