1. In guinea pigs, black fur is dominant over white fur. Cross two heterozygous black guinea pigs.
a. Parent Genotypes:
b. Genotype Percentages of offspring:
C. Phenotype Percentages of offspring:

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; /// i believe the correct answer is (thrombocytopenia); (a)

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles