The bacterial genome exists as
A. several circular pieces of DNA
B. several long strands of DNA
C. a single long strand of DNA
D. a circular piece of DNA
Ans: D. a circular piece of DNA
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Proteins that are involved in the regulation of the cell cycle and that show fluctuations in concentration during the cell cycle are called _____
A) ATPases B) kinetochores C) kinases D) estrogen receptors E) cyclins
A diploid cell with 40 chromosomes will have ____ chromosomes and _____ chromatids after S
phase.
a. 20, 40 b. 20, 20 c. 40, 40 d. 40, 80 e. 80, 80
__________ allow animals of the same species to share information Fill in the blank(s) with the appropriate word(s)
Roundworms are more closely related to arthropods than to flatworms
Indicate whether the statement is true or false