In tomatoes, the red color of the fruit dominates over the yellow. A heterozygous plant with red fruits

In tomatoes, the red color of the fruit dominates over the yellow. A heterozygous plant with red fruits was pollinated with pollen from a plant with yellow fruits and received 60 plants. A) how many types of gametes does the red-fruited mother plant have? B) how many types of gametes does the yellow-fruited parent plant have? C) how many red-fruited plants will there be among the f1 hybrids? D) how many different genotypes will there be among f1 hybrids? E) how many plants will be heterozygous in f1?

Let’s designate the gene that determines the red color in tomatoes as W, then the gene for yellow tomatoes will be w.

Heterozygous tomatoes with red fruits will be recorded as Ww. These plants will produce two types of germ cells: W and w.

A tomato with yellow fruits will be ww, because homozygosity for the gene for yellow fruits is necessary for the phenotypic realization of this trait. Yellow-fruited tomato produces germ cells w.

From crossing the described tomatoes, we get the following offspring options:

heterozygous tomatoes with red fruits (Ww) – 50%;

homozygous tomatoes with yellow fruit (ww) – 50%.

A) 2 types of gametes;

B) 1 type of gametes;

C) 60 * 0.5 = 30 plants with red fruit;

D) 2 genotypes;

E) 30 plants will be heterozygous.