PLEASE HELP FAST 30 POINTS
Which of the following correctly matches the first step of polymerase chain reaction (PCR) with its events?

a
Annealing - Taq polymerase extends the primers, synthesizing DNA
b
Evacuation- poly A segments fuse with primers to initiate sequencing
c
Denaturation - high temperature separates the DNA
d
Extension - reaction is cooled and primers bind to complementary sequences on template DNA.

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.