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In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what genotypic ratio (homozygous dominant:heterozygous:homozygous recessive) would you expect to observe in the offspring?

1:2:1
3:1:1
1:2:0
0:2:1

User KenS
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Answer: 1:2:0

Step-by-step explanation:

User Hongbo Miao
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