What fraction of offspring of the cross AabbDd x AaBbDd are expected to have the same phenotype as either one or the other of their parents assumingthat all three
genes are on different chromosomes?
A. 18/64
B. 24/64
C. 9/64
D. 36/64
E. none of the above

E. none of the above

Explanation:

given data:

AabbDd x AaBbDd

For gene A, there will be cross of Aa X Aa. The probability of having a phenotype, that is either AA or aa is 2/4 = 1/2

For gene B, there will be cross of Bb X BB. The probability of having a phenotype, that is BB is 1/4

For gene D, there will be cross of Dd X Dd The probability of having a phenotype, that is either DD or dd is 2/4 = 1/2.

Hence, the probability of  the off spring having all the genes.

= 1/2 * 1/4 * 1/2

= 1/16

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

answer: c. two haploid cells

explanation: