Which of these associations is NOT correct?
Select one:
a. plumule—leaves
b. radicle—roots
c. seed coat—ovary wall
d. cotyledons—stored food
e. hypocotyl—stem
c. seed coat—ovary wall
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Ribozymes may have originally developed by ____
a. ATP synthesis b. the chance assembly of RNA molecules c. cellular respiration d. glycolysis e. electron transfer systems
Hyphae that contain two genetically distinct, sexually compatible nuclei within
each cell are described as: a. twins. b. couplets. c. dikaryotic. d. polykaryotic. e. double hyphae.
________ cultures are pure cultures, consisting of a single species.
Fill in the blank(s) with the appropriate word(s).
The human genome has how many pairs of autosomal chromosomes?
A) 44 pairs B) 22 pairs C) 24 pairs D) 46 pairs E) 23 pairs