Free Access WGU.Introduction-to-Biology.v2026-10-29.q27 Practice Test (Page 4)

Question 11

What is thefunction of the centromereduring M phase?

A.Copying the chromosomes

B.Holding sister chromatids together until they separate to move to opposite poles

C.Keeping chromosomes condensed and packaged during cell division

D.Pushing each sister chromatid to one of the poles

Question 12

How isDNA organized during prophase, and why?

A.Uncondensed because it needs to be lined up at the center

B.Condensed, which makes it easier to move

C.Organized into paired chromatids to keep it lined up at the center

D.Uncondensed because it needs to move toward the poles

Question 13

What is the correctorderof the major events inDNA replication?

A.Joining the two DNA strands # synthesis of a complementary strand # unwinding the DNA

B.Unwinding the DNA # joining the two DNA strands # synthesis of a complementary strand

C.Unwinding the DNA # synthesis of a complementary strand # joining the two DNA strands

D.Synthesis of a complementary strand # unwinding the DNA # joining the two DNA strands

Question 14

Cells use ATP to power muscle contraction. During contraction, ATP is converted to ADP and inorganic phosphate. What is happening to energy in this conversion?

A.Energy is being released.

B.Energy is being stored.

C.Energy is being destroyed.

D.Energy is being created.

Question 15

A student notes thatclub mossesform an outgroup, whileferns, gymnosperms, and flowering plantsform an ingroup on a plant cladogram (algal ancestor at the base). Whichbranching pointis the student considering?

A.Embryo protection

B.Leaves with branching veins

C.Seeds

D.Vascular tissue

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Question 11

Question 12

Question 13

Question 14

Question 15

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