A plant heterozygous in color and shape of seeds was crossed with a homozygous

A plant heterozygous in color and shape of seeds was crossed with a homozygous plant recessive for these traits. Determine the genotype and phenotype of the resulting offspring.

Let’s designate the gene for the dominant color of seeds as K, then the gene for the recessive color will be k.

Let’s designate the gene of the dominant form of seeds as L, then the gene of the recessive form of seeds will be l.

A plant heterozygous in color and seed shape will have the KkLl genotype and produce four types of germ cells – kl, KL, kL, Kl.

The digomozygote for recessive genes will be written, according to the entered designations, as kkll. This plant will be able to produce only one type of germ cells – kl.

The offspring from crossing such plants with each other will include the following 4 possible options:

a plant with seeds with two recessive traits (kkll) – 25%;

a plant with seeds with two dominant traits (KkLl) – 25%;

a plant with seeds of a recessive color, but a dominant form (kkLl) – 25%;

plants with seeds of dominant color, but recessive form (Kkll) – 25%.



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.