An organism has the genotype AaBbCc. What is the probability of producing a gamete that only has dominant alleles for these three genes?
6.25%
12.5%
25%
50%
The organism has the genotype AaBbCc.
For each gene, there are two possible alleles – a dominant allele and a recessive allele.
The probability of producing a gamete with only dominant alleles for all three genes can be calculated by multiplying the probabilities of producing a gamete with a dominant allele for each gene.
For the first gene (A), the organism is heterozygous (Aa). The probability of producing a gamete with a dominant allele (A) is 1/2.
For the second gene (B), the organism is heterozygous (Bb). The probability of producing a gamete with a dominant allele (B) is 1/2.
For the third gene (C), the organism is heterozygous (Cc). The probability of producing a gamete with a dominant allele (C) is 1/2.
Multiplying these probabilities together:
Probability = 1/2 * 1/2 * 1/2 = 1/8 = 0.125 = 12.5%
Therefore, the probability of producing a gamete with only dominant alleles for these three genes is 12.5%.