Cyclic AMP is degraded by __________.

A) phosphodiesterase

B) adenylate cyclase

C) G proteins

D) AMP

E) protein kinase


A) phosphodiesterase

Phosphodiesterase degrades cyclic AMP into AMP.

Biology & Microbiology

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In a cow's udder, milk

A. contains Lactococcus. B. contains Lactobacillus. C. is acidic. D. is sterile.

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When cells take on specific structure and function, this is called

A. morphogenesis. B. growth. C. cleavage. D. differentiation. E. fertilization.

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Sarcoplasm is what?

What will be an ideal response?

Biology & Microbiology

One form of dwarfism, achondroplasia, is caused by a dominant allele (D). If two individuals with achondroplasia have children, there is a 1/4 chance one of their children will have the homozygous dominant genotype and will not survive the pregnancy. This fact tells you that this is a case of a _________ and the dwarf parents' genotypes must be both _________.

a) lethal recessive allele; dd b) lethal dominant allele; DD c) lethal dominant allele; Dd d) lethal recessive allele; Dd

Biology & Microbiology