In a human cell at prophase I, there are __________ tetrads
a. 92
b. 46
c. 23
d. 2
e. 4
C
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Rhizomes, tubers, corms, and stolons are examples of modified
a. leaves. b. bulbs. c. roots. d. flowers. e. stems.
The organism in the above photograph has which of
the following structural systems? a. cartilaginous b. bone c. hydrostatic d. chitinous e. none of these
Using the techniques of genetic engineering, you design a protein you want to accumulate within the ER of yeast cells. To accomplish this goal, you need to
A) do nothing; all proteins go through the ER. B) incorporate appropriate mannose-6-phosphate groups. C) incorporate the appropriate DNA sequence(s) to create signal sequences in the mature peptide. D) incorporate radioactive amino acids into the protein. E) remove the N-formyl group located at the N-terminus of the polypeptide.
Which can be absorbed in the large intestine
A. some amino acid B. vitamin k C. vitamin d D. calcium E. bile