Explain the consequence of overdominance in maintaining a deleterious allele in a population as it relates to genetic diversity
What will be an ideal response?
Overdominance, or heterozygote superiority, helps prevent potentially deleterious alleles from being lost in a population. Because the selective advantage of the deleterious allele in heterozygotes is balanced by the disadvantage of maintaining the allele in the homozygous state, allelic diversity within the population is maintained. This diversity enables more favorable responses to changing selective pressures of the environment.
You might also like to view...
Infants acquire natural passive immunity from maternal antibodies transferred across the placenta or in breast milk
Indicate whether the statement is true or false.
The typical osmolarity of most body fluids in humans and other mammals is about ____ mOsm/L
a. 5 b. 225 c. 300 d. 1000 e. 1500
Normal bacterial inhabitants of the human body
a. are naturally resistant to antibiotics. b. are able to out-compete some invading pathogens and thus are one of the body's initial defense mechanisms. c. can be transformed into pathogenic forms if a person's resistance to disease is low. d. are unable to survive the human body's defense mechanisms. e. are able to out-compete some invading pathogens and thus are part of the body's innate immunity
What are NOD proteins?
A) cytoplasmic receptors of microbial molecules B) cellular signals triggering inflammation C) receptors of microbial molecules in phagocyte cell membranes D) activators of complement E) chemotactic factors