13 Jun The fact that being homozygous recessive for the CCR5 receptor protects
Question
I eliminated answers that were for sure incorrect.
Question 1 of 10
The fact that being homozygous recessive for the CCR5 receptor protects people from being infected with HIV, thus causing an increase in the recessive CCR5 allele, is an example of
B.allele switching
C.microevolution
D.macroevolution
Question 4 of 10
Population bottlenecks and founder effects
A.both lead to genetic drift, which reduces variation in the population
B.have opposite effects on population variation
D.both result in genetic variation due to extreme conditions
Question 8 of 10
Although Lamarck’s idea of inheritance of acquired characteristics was demonstrated to be false, there is a way in which exposure to some environmental factors can be passed on to offspring. This is known as
B.epigenetics
C.stabilizing polymorphisms
D.acquired mutability
Question 10 of 10
A group of birds migrate to a newly formed island and have a genetic makeup that is different from the original population. This is known as ________?
A.phenotype frequency
B.allelic variation
C.the founder effect
E.hybrid mutation
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