HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a cross of Aa x Aa, what is the expected genotype ratio in the offspring?
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3:1
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1:2:1
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1:1
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4:0
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Explanation:
Detailed explanation-1: -A cross of two F1 hybrids, heterozygous for a single trait that displays incomplete dominance is predicted to give a 1:2:1 ratio among both the genotypes and phenotypes of the offspring.
Detailed explanation-2: -Answer and Explanation: The cross between these parents would be Aa x aa. This can lead to two possible genotypes which are also Aa and aa.
Detailed explanation-3: -1:1:1:1 is the phenotypic ratio which is classic Mendelian ratio for a test cross in which the alleles of the two genes assort independently into gametes (BbEe X bbee). It is a test done to investigate the genotype of parents.
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