The linkage commonly found between subunits in a chain of monosaccharides is called a ____ bond
a. phosphodiester
b. disulfide
c. glycosidic
d. hydrogen
e. peptide
C
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Which of the following animals DOES NOT have a compound eye?
A. crayfish B. crab C. squid D. bee E. butterfly
The ________ is a shield-shaped endocrine structure in the front of the neck
Fill in the blank(s) with correct word
Menstruation occurs when there is a decrease in
A) levels of estrogen and progesterone. B) the number of follicles. C) levels of FSH and LH. D) endometrial thickness. E) the number of sperm present.
Two reasons for two selectable markers in a YAC vector are:
A. to insure the EcoRI digest is complete. B. to insure the desired recombinant construct has telomeres on both ends. C. to contribute to the centromere structure. D. to increase transformation efficiency. E. to eliminate the possibility of screening unstable recombinants.