The ability of glucose to repress the lac operon depends on which of the following effector molecules?
A. allolactose
B. cAMP
C. tryptophan
D. ADP
E. starch
B. cAMP
Biology & Microbiology
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A pea plant is known to be heterozygous and is described as YyWw. This is the plant's ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Tinea pedis is
A. an infection of scalp hair. B. known as "jock itch." C. known as "athlete's foot." D. a beard infection.
Biology & Microbiology
Explain how epigenetic inheritance (for example, DNA methylation) can result in different phenotypes observed in
identical twins (who have identical DNA sequences). What will be an ideal response?
Biology & Microbiology
Density-independent factors that limit population growth include ____.
A. parasites B. temperature C. disease D. competition E. predation
Biology & Microbiology