Mendel's Y/y;R/r dihybrid pea plants were the F1 of the cross between a double homozygous dominant and a double homozygous recessive.If we testcrossed these dihybrids,what proportion of the offspring would be recombinant and phenotypically resemble the F1 dihybrid?
If an individual has 10 gene pairs,how many different gametes can be formed if 5 of the gene pairs are homozygous and the remaining 5 gene pairs are heterozygous?