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Law Incorporation [45]
3 years ago
7

Why are lethal dominant alleles so much more rare than lethal recessive alleles?

Biology
1 answer:
Lisa [10]3 years ago
4 0

The correct answer is: d. Lethal dominant alleles are harmful whether they are carried in homozygous or heterozygous form, so there is always strong selection against these alleles.

Lethal alleles cause the death (prenatal or after birth, but usually early in development) of the organism that carries them. There are three types of lethal alleles:  

• Recessive-both alleles must be defective,  

• Dominant-it is sufficient that one allele is lethal to cause the death,

• Conditional depending on the gene or genes involved.  

Lethal alleles are usually a result of mutations in genes essential for development of an organism.

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4 years ago
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oksano4ka [1.4K]

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8 0
3 years ago
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7 0
3 years ago
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Answer:

In the beginning, God created...

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