Question

Phenotypic ratio of recessive lethal inheritance is ?
Zero is to two is to one
O One is to One
Zero is to one is to two
O Zero is to two is to Zero​

Answer 1

Answer:

2:1

Explanation:

For crosses between heterozygous individuals with a recessive lethal allele that causes death before birth when homozygous, only wild-type homozygotes and heterozygotes would be observed. The genotypic ratio would therefore be 2:1.

Answer 2

Answer:

2:1

Explanation:

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