The total length of the cell cycle of cells in a cell culture is 24 hours. M phase is found to be 1 hour, S phase is found to be 9 hours and G2 is found to be 4.5 hours. How long is G1?
a) 24 hours
b) 9.5 hours
c) 9 hours
d) 1 hour
e) 4.5 hours
Ans: b) 9.5 hours
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The most extreme form of female genital cutting (FGC) involves the removal of the clitoris, all of the inner lips, and part of the outer lips. The remaining parts of the outer lips are then stitched together. This form of FGC is called _____.
A. ovariotomy B. excision C. infibulation D. clitoridectomy
Each human contains an identical set of VNTRs
Indicate whether the statement is true or false
The hypodermis is composed of ____.
A. adipose and nervous tissues B. connective and adipose tissues C. blood and lymphatic vessels D. hair follicles and sweat glands E. sebaceous and sweat glands
Bush beans grow as small bushes rather than as vines because their internodes are short and they branch close to the apical meristem. Which substance, if applied to a bush bean, might cause it to elongate its internodes and grow as a vine?
A) a cytokinin B) a gibberellin C) abscisic acid (ABA) D) ethylene