Which amino acid(s) can be involved in special covalent "disulfide bridges" that, when present, help to

stabilize the tertiary and quaternary structure of proteins?



a. proline
b. alanine
c. leucine and isoleucine
d. cysteine
e. methionine


D

Biology & Microbiology

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One goal of pedigree analysis is to discover whether the gene in question is located on an X or a Y chromosome or on a(n) ____________________

Fill in the blank(s) with correct word

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The names of the extraembryonic membranes are derived from their function in animals that produce shelled eggs.

Answer the following statement true (T) or false (F)

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Specialized islet cells that secrete hormones are

found scattered throughout the a. adrenal cortex. b. liver. c. thymus. d. adrenal medulla. e. pancreas.

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Describe a difference between the RNA polymerases of eukaryotes and prokaryotes

What will be an ideal response?

Biology & Microbiology