Some anticancer drugs prevent microtubules from forming spindle fibers. If the spindle fibers are damaged during metaphase, which of the following events would NOT
occur?

A. nucleus disappears

B. chromatin
condensing into
chromosomes

C. chromosomes
separating into
chromatids

D. chromosomes lining
up at the equator of
the cell

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."