What is meant by the term epistasis? Distinguish between epistasis and dominance. Do not use examples in answering this question
What will be an ideal response?
Epistasis refers to a gene (or genes) of one pair masking the expression of a gene (or genes) at a different locus. Dominance refers to the form of expression of a gene in relation to its allele (or alleles). When an allele is dominant, the heterozygous combination is the same phenotypically as one of the homozygotes. Epistasis is a nonallelic interaction; dominance is an allelic interaction.
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A competitive inhibitor
A) binds at a site other than the active site. B) irreversibly binds and inactivates the enzyme. C) cannot be processed by the enzyme. D) does not inhibit enzyme activity but does lower substrate concentration. E) binds to and inactivates the substrate.
The molecule shown above is the pyrimidine ____, which is typically found in both DNA and RNA
a. thymine b. adenine c. uracil d. guanine e. cytosine
During the past century the global sea level has risen ________ in response to global warming. a. 16 inches b. 1 meter c. It hasn't risen at all
d. 2 feet e. 8 inches
The outer membrane of Gram-negative bacteria enables many antimicrobial drugs to enter the cell more easily.
Answer the following statement true (T) or false (F)