Which organisms are most closely related to humans?
A. meerkats
B. snakes
C. parakeets
D. earthworms
E. spiders
Answer: A
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Axillary buds
A. add length to a plant. B. develop into roots when water is scarce. C. form flowers or branches. D. increase the diameter of a stem. E. form lateral meristems.
The extraembryonic membrane that contributes to the formation of the placenta. _____
A) Human chorionic gonadotropin
B) Zygote
C) Chorion
D) Morula
E) Folic acid
F) Fertilization
G) Blastocyst
H) Parturition
I) Cleavage
J) Ovulation
K) Placenta
L) Implantation
Cells become progressively committed to specific patterns of gene activity and developmental fate
through a process known as: a. morphogenesis. b. determination. c. cell differentiation. d. nonspecific differentiation. e. growth.
Which of the following has NOT been performed using CRISPR genome editing?
a. Excision of the HIV genome from the genome of human cells in vitro. b. Insertion of new DNA into specific cut sites. c. Gene deletion at specific cut sites. d. The production of recombinant human somatotropin.