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jok3333 [9.3K]
2 years ago
7

Marbles is a Manx cat whose tail is so short that she appears not to have one. The genotype for short tail in Manx cats is heter

ozygous (Mm). Cats that are genotype mm have normal length tails, but cats that are genotype MM die before birth due to highly abnormal brains and spinal cords. Marbles has one copy of a dominant _____ allele.
Social Studies
1 answer:
maksim [4K]2 years ago
6 0

Answer:

lethal

Explanation:

The genotype mm corresponds to normal length tails. On the other hand, the genotype MM corresponds to having highly abnormal brains as well as spinal cords .

Lethal alleles are the alleles which can cause death of organism. These alleles are usually result of the mutations in the genes which are essential for the growth or the development. Thus, Marble has genotype Mm and have one copy of dominant lethal allele as M corresponds to premature death.

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