In Norwegian cola plants, both the number of cola nuts per stem and leaf shape a

Question

In Norwegian cola plants, both the number of cola nuts per stem and leaf shape are determined by single genes. The allele for the “one nut” (O) condition is dominant to the allele for the “3-nut” (o) condition. And flat (F) leaves are dominant to curled (f) leaves. The two characters are inherited independently. The results of five crosses each between a single pair of plants, gave the following results. From this data, what are the genotypes of the parent plants in each cross?

1) 1 nut, flat X 3 nut, flat: 318 1 nut, flat & 98 1 nut, curled & 323 3 nut, flat & 104 3 nut, curled

2) 1 nut, flat X 1 nut, curled: 110 1 nut, flat & 113 1 nut, curled & 33 3 nut, flat & 38 3 nut, curled

3)1 nut, flat X 3 nut, flat: 362 1 nut, flat & 118 1 nut, curled & 0 3 nut, flat & 0 3 nut, curled

4)1 nut, flat X 3 nut, curled: 211 1 nut, flat & 0 1 nut, curled & 205 3 nut, flat & 0 3 nut, curled

5)1 nut, curled X 3 nut, flat: 78 1 nut, flat & 90 1 nut, curled & 84 3 nut, flat & 88 3 nut, curled

Explanation / Answer

1) 1 nut, flat X 3 nut, flat: - Oo Ff X oo Ff

2) 1 nut, flat X 1 nut, curled: = Oo Ff X Oo ff

3)1 nut, flat X 3 nut, flat:= OO Ff X oo Ff

4)1 nut, flat X 3 nut, curled: = Oo FF X 0o ff

5)1 nut, curled X 3 nut, flat: = Oo ff X oo Ff

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