Which of the following occurs when RNA polymerase attaches to the promoter DNA?
A) elongation of the growing RNA molecule
B) termination of the RNA molecule
C) initiation of a new RNA molecule
D) initiation of a new polypeptide chain
Answer: C
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You are studying a diploid organism that has 14 sets of chromosomes. How many chromatids will a cell from this organism have in metaphase of meiosis II?
A. 7 B. 14 C. 28 D. 56
The part of the ear actually responsible for
hearing is the
a. hammer, anvil, and stirrup. b. cochlea. c. vestibular apparatus. d. organ of Corti. e. combination of the organ of Corti and the vestibular apparatus
________ can be defined as the fraction of the variation in a population that is due to differences in genes
Fill in the blank(s) with correct word
How many chromosomes should be in an endosperm nucleus?
A) 8 B) 16 C) 24 D) 32