Where is extranuclear DNA located in mammalian cells?
A. Endoplasmic reticulum
B. Mitochondria
C. Ribosome
D. Plasma membrane
B
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What is a disadvantage of asexual reproduction? a. It does not introduce variety into populations
b. Finding a mate is not required. c. It is not an efficient process. d. It can create high density of populations.
Closely related or similar species are grouped into a single:a
class. b. phylum. c. order. d. genus e. family.
A patient with Bruton's agammaglobulinemia has decreased immunoglobulin. This disease affects __________.
A) Macrophages B) natural killer cells C) T cytotoxic cells D) B cells
Which of the following is correct about the evolutionary relationships among the three domains?
A. Archaea and bacteria are more closely related to each other than to eukaryotes. B. Archaea and eukaryotes are more closely related to each other than to bacteria. C. Eukaryotes and bacteria are more closely related to each other than to archaea. D. They are equally distant from each other.