In rabbits, gray coat color is the dominant trait (B), black color is recessive (b). 6 gray rabbits crossed with a black male.

In rabbits, gray coat color is the dominant trait (B), black color is recessive (b). 6 gray rabbits crossed with a black male. As a result of five crosses, all the offspring obtained consisted of gray rabbits. In one case, among 9 rabbits there were 5 gray and 4 black. Determine the genotypes of the rabbit, rabbits and rabbits in all cases of crossing.

Male rabbit genotype – bb; five rabbits – BB; their descendants – Bb; the sixth rabbit – Bb; her descendants are Bb (gray) and bb (black).

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.