The gene for early ripeness in oats dominates over the gene that determines late ripeness. The offspring from the crossing of two unknown parents turned out to be 1202 early-maturing and 986 late-maturing plants.
a) Describe in words the genotypes of the original plants.
b) Describe in words the genotypes of the original plants, if in F1 there were 19 605 early maturing and 5906 late maturing plants.
c) Describe in words the genotypes of the original plants, if there were no splitting in the offspring.
d) If the split in the offspring is 1: 2: 1, then what kind of inheritance of the trait does this indicate?
e) How many different variants of crosses (in the case of complete dominance) will heterozygous genotypes (along with other genotypes) give in the offspring?
f) How many offspring with different genotypes will give heterozygous genotypes?
g) How many offspring with the same genotypes will give heterozygous genotypes?
Answer: heterozygote and rets.homozygote / heterozygote / house.homozygote and heterozygote; house homozygote and rec.homozygote / incomplete dominance / 4/3/3.
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