In rabbits, hair of normal length is dominant-A, short-recessive-a. A rabbit with short hair gave birth to 8 rabbits

| April 14, 2021 | education

In rabbits, hair of normal length is dominant-A, short-recessive-a. A rabbit with short hair gave birth to 8 rabbits – 4 short-haired and 4 with normal hair.

According to the designations introduced in the condition of the problem, we will write the rabbit as aa, due to the fact that homozygosity is necessary for the phenotypic realization of the gene that determines the development of short hair. The body of such a rabbit produces eggs of the same type – a.

Since in the offspring of this rabbit there are both short-haired (aa) rabbits and rabbits with hair of normal length (Aa, because only a – gene can be inherited from the mother), it should be concluded that the rabbit is Aa, and produces spermatozoa A and a are types.

Answer: the father rabbit is Aa, the mother rabbit is aa, the rabbits with hair of normal length are Aa, the rabbits with short hair are aa.



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