question archive Twenty percent of the genes in a self-fertilizing hermaphrodite are heterozygous
Twenty percent of the genes in a self-fertilizing hermaphrodite are heterozygous
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Twenty percent of the genes in a self-fertilizing hermaphrodite are heterozygous. What percentage of the genes in the grandchildren of this individual will be heterozygous?
Select one:
a. 2.5
b. 10
c. 20
d. 5
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d. 5
Step-by-step explanation
In a AaBb x AaBb dihybrid cross, there are four possible gametes combination. A dominant A and a dominant B allele are given to half of the gametes; a recessive a and a recessive b allele are obtained from the other half of the gametes (Jeridi et al., 2012). Therefore, both parents create twenty five percent of AB, Ab, aB, and ab each.
