Biology

Biology, 10.07.2019 10:50, badpotterchris

In a small, isolated population of piranhas, one individual is born with a synonymous mutation in a gene that codes for hemoglobin. after five generations, 5% of the piranhas carry this mutation. what is a plausible explanation for this evolution?

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Biology, 28.06.2019 10:00, screamqueen

Drag each tile to the correct location on the chart. each tile can be used more categorize each mutation by its most likely effect on the organism. neutral harmful beneficial genetic mutation a mutation in the hbb gene, which codes for hemoglobin, produces red blood cells that are rigid and sickle-shaped a mutation in the eycl3 gene, which regulate eye color, produces two different colored eyes. a mutation in the cftr gene, which codes for a cell transport protein, causes a buildup of a thick mucus that covers the organs. a mutation in the lrp5 gene, which codes st

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Biology, 01.08.2019 04:10, mem8163

9. in a small population of snails, one individual inherits a synonymous mutation in a gene that codes for an important protein. after 5 generations, 6 % of the snail population carries this mutation. what is the most likely explanation for this evolution?

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Biology, 22.08.2019 05:20, carlybeavers50

9. in a small population of snails, one individual inherits a synonymous mutation in a gene that codes for an important protein. after 5 generations, 6 % of the snail population carries this mutation. what is the most likely explanation for this evolution?

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Biology, 20.11.2019 05:31, Epicbuildzz

The allele (a) for sickle cell anemia is recessive to the allele (a) that produces functional hemoglobin molecules. when an individual receives two copies of the sickle cell allele (aa), that individual produces misshapen red blood cells due to a mutation. the individual often has problems with oxygen circulation, filtering of the red blood cells in the spleen, and can suffer from chronic pain. individuals with sickle cell anemia can die from this condition. what explains how the allele for sickle cell anemia is deleterious but can persist with certain populations of humans? a) the allele is decreasing in the population but has not fully been eradicated from the gene pool. b) the mutation is dominant in males and recessive in females, so it is carried by females without causing them to display any symptoms. c) the allele has vanished from the human population's gene pool only to reappear as an identical random mutation occurred with the same allele. d) the heterozygote (aa) has functional hemoglobin within the red blood cells but is resistant to a deadly blood parasite that causes malaria. this is known as heterozygote advantage.

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