Two Genes with Two Alleles Each Are 30 CentiMorgans (Map

question 44

Multiple Choice

Two genes with two alleles each are 30 centiMorgans (map units) apart.A double heterozygote whose parents were homozygous dominant and homozygous recessive is crossed to a double homozygous recessive.What frequency in the progeny will be double homozygotes?

• A) 0 percent
• B) 15 percent
• C) 30 percent
• D) 35 percent
• E) 70 percent