How do the sperm cells get from the stigma to the ovules?

a. they slide down the petals to the bottom of the flower.
b. they travel through pollen tubes.
c. they travel along filaments
d. insects carry the sperm cells from the stigma to the ovules.

the answer is B. They travel through pollen tubes

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."

d

explanation: