In tomatoes, the round shape of the fruit dominates over the pear-shaped one. Determine the genotypes of the parental forms, if the offspring have 50% of plants with round and 50% with pear-shaped fruits. Tomatoes of 118 plants with pear-shaped and 363 plants with round fruits were grown from hybrid seeds. How many are F1 heterozygotes among all F1 plants?
Mendel’s first law
R: Aa x aa
F1: Aa, Aa, aa, aa
P: Aa x Aa
F2: AA, Aa, Aa, aa
We get 3/4 of the fruit, which is (363) with a round fruit shape and 1/4 (118) with a pear shape.
That is, the proportion of heterozygotes was approximately 242 round-shaped fetuses.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.