In eukaryotic DNA methylation, methyl groups are usually added to which molecule?
A. Guanine
B. Thymine
C. Adenine
D. Cytosine
E. Deoxyribose
Answer: D
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The formation of the bivalent during meiosis
A. is required for the pairing of homologous chromosomes. B. contributes to the genetic diversity of a species. C. ensures that the resulting haploid cells will have the same combination of homologous chromosomes as the original diploid cell. D. aids the alignment of sister chromatids in a single row along the metaphase plate. E. occurs during meiosis II.
In the image above, the substance indicated as
"B" is a(n) a. inhibitor. b. activator. c. substrate. d. coenzyme. e. cofactor
Monocots, but NOT eudicots, have
a. nodes. b. cotyledons. c. coleoptiles. d. hypocotyl hooks. e. flowers.
The lowermost and outermost whorl on a floral shoot consists of petals
____________________ Indicate whether the statement is true or false.