What are the three principal components of a DNA nucleotide?
What will be an ideal response?
sugar (deoxyribose), phosphate, and nitrogenous base (nucleobase)
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Which of the following is true with regard to DNA primase?
A. It synthesizes the RNA primers required for lagging strand synthesis. B. It requires the presence of a 3'-OH in order to synthesize DNA. C. It is responsible for RNA primer removal and replacement with DNA. D. It seals the gaps or nicks produced during lagging strand synthesis. E. It is inhibited by the presence of the helicase.
The postindustrial age is defined by ____
a. high birth and death rates b. zero population growth c. dramatic slowing in population growth d. declining death rate e. declining birth rate
Your father has type B blood. Your mother has type O blood. You get tested and learn that your blood
is also type O. What does this tell you?
a. You were adopted and your parents didn't tell you. b. Your mother had a secret affair. c. Your father's genotype is IBi and your mother's genotype is ii. d. Your father's genotype is IBIB and your mother's genotype is ii. e. Your father's genotype is IAIB and your mother's genotype is ii.
Branching points at the root of the eukaryotic phylogenetic tree
A) reveal that unikonts are derived from the SAR clade B) suggest that Archaeplastids were the first eukaryotes C) strongly suggest that fungi are more closely related to plants than animals D) are presently unclear