Portion of Figure 22.11
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Refer to the above figure for questions.
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In the life cycle of a club moss, what is the name of the structure that produces the haploid spores?
A. Strobilus
B. Sporophyte
C. Gametophyte
D. Rhizome
E. Strobilus
Answer: A
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Acetylation adds a ____ group ____
a. CH3CO-; to the cytosine nucleotides of DNA b. CH3CH2-; to the DNA of a promoter sequence c. CH3CO-; to the histone protecting the transcription unit of a gene d. CH3CO-; to the histone protecting the promoter region of a gene e. CH3CH2-; to the RNA polymerase that will initiate transcription at the promoter region
Cells replicate DNA
A) during the M phase of the cell cycle. B) all the time. C) during the S phase of the cell cycle. D) only when a person is stressed.
All cells recycle the essential element _____ from amino acids and nucleotides.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not a characteristic of the Neandertals?
A. They are considered H. sapiens. B. The brain size was larger than ours. C. They were heavily muscled. D. They had massive brow ridges. E. The pubic bone was long compared to ours.