If a person has wavy hair dominating over straight hair, and black hair color over blond, what offspring

If a person has wavy hair dominating over straight hair, and black hair color over blond, what offspring can be expected in the following crosses. 1) The father is diheterozygous with dark wavy hair, and the mother is recessive digozygote 2) the father is fair-haired and heterozygous for the wave gene, and the mother is a dark-haired homozygote with straight hair 3) the father is homozygous for both genes, while he has light and wavy and the mother is digheterozygote 4) the father is recessive digomozygote and the mother is diheterozygote.

Let’s designate the gene that causes the development of wavy hair as K, then the gene for straight hair will be designated as k. Let’s designate the gene that causes the development of black hair as L, then the gene for light hair will be designated as l.

Father KkLl, he produces sperm – kl, KL, kL, Kl. The mother is kkll, she has straight blonde hair and produces eggs – kl. Offspring includes the following options:

children with light straight hair (kkll) – 25%;

children with dark wavy hair (KkLl) – 25%;

children with straight dark hair (kkLl) – 25%;

children with wavy blond hair (Kkll) – 25%;

Father – Kkll, his sperm – kl, Kl. Mother – kkLL, her eggs – kL. Offspring: children with straight dark hair (kkLl) – 50%, children with wavy dark hair (KkLl) – 50%;

Father – Kkll, sperm – Kl, kl. Mother – KkLl, eggs – kl, KL, kL, Kl.

Offspring:

children with wavy blond hair (2Kkll, KK ll) – 37.5%;

children with wavy dark hair (KKLl, 2 KkLl) – 37.5%;

children with straight blond hair (kkll) – 12.5%;

children with straight dark hair (kkLl) – 12.5%;

The father is kkll, he has blonde straight hair. Sperm – kl. Mother – KkLl, eggs – kl, KL, kL, Kl. Offspring – similar to that presented in paragraph 1.



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.