In a 3-D double helix model of DNA, the center consists of ____.
A. deoxyribose sugars
B. nitrate groups
C. nucleotide base pairs
D. phosphate groups
E. sugar–phosphate backbones
Answer: C
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The major difference in gene regulation between prokaryotes and eukaryotes is that...
A. eukaryotic and prokaryotic genes are usually grouped for common functions. B. eukaryotic genes regulation requires fewer signals that prokaryotic gene regulation. C. eukaryotic gene regulation is more simplistic than prokaryotic gene regulation. D. eukaryotic genes are arranged individually, while prokaryotic genes are grouped into operons. E. eukaryotic gene regulation tends to require less coordination and integration than prokaryotic gene regulation.
When monocytes migrate from the blood out to the tissues, they are transformed by inflammatory mediators to develop into ________.
A. macrophages B. cytotoxic T cells C. killer T cells D. primary phagocytes E. neutrophils
What is the probability of rolling one six-sided die and obtaining any number but 6?
What will be an ideal response?
Which of the following is NOT one of the kingdoms included within the Eukarya domain?
a. Archaea b. Plantae c. Fungi