What is the role of heterozygote advantage in maintaining high frequencies of mutant alleles in populations? What will be an ideal response?
Heterozygotes for these mutant alleles have the combined advantage of little or no expression
of the harmful effects of the mutant allele and some other advantageous plieotropic effects of
the mutant allele, such as resistance to a certain disease.
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Answer the question using the accompanying figure. Which number identifies the structure that carries supplemental
genetic information?
a. 1 b. 2 c. 3 d. 4 e. 5
Cells that undergo apoptosis are essential to the organism throughout their life
Indicate whether the statement is true or false.
Mendel's monohybrid cross of Tt parents resulted in a tall-to-short ratio of
A. 2:1. B. 1:1. C. 1:2. D. 1:3. E. 3:1.
When a cell divides, each daughter cell receives
A) the same amount of genetic information that was in the parent cell, but it has been altered. B) a nearly perfect copy of the parent cell's genetic information. C) exactly half the genetic information in the parent cell. D) twice the amount of genetic information of the parent cell.