Biology

Biology, 03.08.2019 16:20, mahdy43

Explain how lethal dominant alleles are maintained in a population

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Biology, 30.06.2019 00:00, Michael845313

What statement is true about lethal alleles? a. they cannot be maintained in a gene pool because they are always dominant. b. they cannot be maintained in a gene pool because the individuals with them never survive. c. they can be maintained in a gene pool if they are expressed before reproductive age. d. they can be maintained in a gene pool by heterozygous carriers.

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Biology, 15.07.2019 22:20, QueenNerdy889

How can dominant-lethal alleles be passed down? (choose the best answer! ) a. they can’t, as they are lethal.b. they can be passed down if the individual with the lethal mutation lives to reproductive age and has a child. c. dominant-lethal alleles occur solely through spontaneous mutations, they are not passed down through generations.d. they can be passed down if the individual freezes their eggs or sperm to allow a child to be born with their genetics, even after they pass.

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Biology, 28.09.2019 08:50, Noneed101

Why are lethal dominant alleles so much more rare than lethal recessive alleles? a. the lethality associated with lethal dominant alleles is much more severe than that associated with lethal recessive alleles. b. the types of mutations that create lethal dominant alleles are much less frequent than those that create lethal recessive alleles. c. less is known about lethal dominant disorders, so the rareness of these alleles is an artifact due to a lack of detection. d. lethal dominant alleles are harmful whether they are carried in homozygous or heterozygous form, so there is always strong selection against these alleles.

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Biology, 19.10.2019 03:00, finlchey3860

Which statement is true about lethal alleles? they cannot be maintained in a gene pool because the individuals with them never survive. they can be maintained in a gene pool by heterozygous carriers. they cannot be maintained in a gene pool because they are always dominant. they can be maintained in a gene pool if they are expressed before reproductive age.

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