Question

In cross between heterozygous what proportion is expected to be homozygous recessive

Answer 1

Answer:

The expected genotype ratio when two heterozygotes are crossed is 1 (homozygous dominant) : 2 (heterozygous) : 1 (homozygous recessive). When a phenotypic ratio of 2 : 1 is observed, there is probably a lethal allele.

Explanation:

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