The taxonomic category that includes species of apes, humans, and their ancestors is known as ____
a. hominids
b. hominins
c. hominoids
d. australopithecines
e. apes
a
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Mature siRNA annealed to its target usually leads to translational repression when:
A. the target mRNA is lacking its 5' cap. B. the siRNA is only partially complementary to the target. C. the target does not contain an Argonaute binding site. D. the siRNA is perfectly complementary to the target.
A prenatal diagnosis procedure that has
recently come into wide use can be performed earlier than amniocentesis, and it involves sampling the a. yolk sac material. b. allantois. c. chorion. d. yolk sac. e. umbilical cord
Which one of the following correctly describes the order of stem cells from the lowest degree of flexibility to the highest degree of flexibility?
A) unipotent< multipotent < pluripotent < totipotent B) multipotent< unipotent < pluripotent < totipotent C) pluripotent< unipotent < totipotent < multipotent D) unipotent< multipotent < totipotent < pluripotent
What is the primary means of reproduction among the protists, cnidaria, and tunicates?
A. asynchronous reproduction B. sexual reproduction C. asexual reproduction D. hermaphroditic reproduction