Chromosomes of a pair of homologous chromosomes may differ from other chromosomes in terms of
a. size.
b. shape.
c. alleles they carry.
d. position of the centromere.
e. all of these.
E
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Freshwater fish will (select all correct choices):
A. lose electrolytes across the skin and gills. B. gain water across the skin and gills. C. gain electrolytes across the skin and gills. D. gain electrolytes from drinking. E. lose water across the skin and gills.
What features of charophytes provides evidence for charophytes being the closests relative to land plants?
A. Charophytes possess plasmodesmata. B. Charophytes are the only photosynthetic protists. C. Charophytes are fully terrestrial. D. Charophytes produce seeds and flowers.
Coconut milk was an extremely useful additive in plant tissue culture because, in addition to amino acids, it contains
A. auxins. B. gibberellins. C. cytokinins. D. ethylene. E. abscisic acid.
The carbon dioxide acceptor in the Calvin-Benson
cycle is a. phosphoglycerate (PGA). b. ribulose bisphosphate (RuBP). c. phosphoglyceraldehyde (PGAL). d. O2. e. NADP+.