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Author Question: Why don't recessive alleles that cause severe disorders disappear from human populations? (Read 134 times)

jjjetplane

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on: Jan 6, 2021

Question 1

Which substance is defective in Marfan syndrome?
◦ sphingolipids
◦ albumin
◦ fibrillin
◦ amyloid
◦ LDLs

Question 2

Why don't recessive alleles that cause severe disorders disappear from human populations?
◦ new alleles can arise by mutation.
◦ in heterozygotes, the dominant allele suppresses the recessive one but does not eliminate its presence.
◦ in heterozygotes, although the trait associated with the recessive allele is not demonstrated, the allele may be passed on to offspring.
◦ some recessive traits are not lethal nor do they interfere with reproduction.
◦ all of these.
Human Biology ¦ Starr, McMillan ¦ 10th Edition
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Marked as best answer by jjjetplane on Jan 6, 2021

morrie123456

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Reply #1 on: Jan 6, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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jjjetplane

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Reply 2 on: Jan 6, 2021
:D TYSM

Joy Chen

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Reply 3 on: Yesterday
Wow, this really help

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