What is heterozygote advantage? Provide one example of this and briefly explai What will be an ideal response?
ANSWER: Heterozygote advantage occurs when the heterozygote genotype has greater fitness in that
environment. An individual who is heterozygous for sickle cell has an advantage in areas
where malaria is endemic because the heterozygote is more resistant to malarial infection
than the individual carrying two normal hemoglobin genes.
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When describing people as "lactose intolerant," you are describing
A. their phenotype. B. their genome. C. their alleles. D. their genotype. E. none of these
The greatest cause of extinction of species is
a. runoff. b. habitat loss. c. invasive species. d. evapotranspiration.
What phase does the nuclear membrane and nucleolus disappear?
What will be an ideal response?
Current thought indicates that marsupials and eutherians are more closely related to each other than either is to monotremes.
Answer the following statement true (T) or false (F)