Even when a gene is available and its sequence of nucleotides is known, chemical studies of the protein are still required to determine:
A) molecular weight of the protein.
B) the amino-terminal amino acid.
C) the location of disulfide bonds.
D) the number of amino acids in the protein.
E) whether the protein has the amino acid methionine in its sequence.
Ans: C) the location of disulfide bonds.
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DNA in the nucleus winds around proteins called
A) histones. B) karyosomes. C) ribosomes. D) proteasomes.
In humans, many types of cancers are associated with chromosomal mutations
Indicate whether the statement is true or false
In the figure above, the HIV that infected more than 400 children in a Benghazi hospital:
a. is closely related to strains from Cameroon and Ghana. b. suggests that West Africa was a likely source of the strain that seeded the outbreak. c. suggests a single introduction was responsible for the outbreak in Benghazi. d. All of the above. e. A and C.
The major reservoir of phosphorus is ____
a. sedimentary rock b. plant material c. groundwater d. the atmosphere e. ocean water