What would be the first step in using pcr to copy a gene?
a. various strands of dna are allowed to cool
b. dna is heated to separate strands
c. dna polymerase adds nucleotides to separate strands.
d. copied strands are used as templates to make more copies .

Answer;

Two organisms that are placed on distantly spaced twigs on a phylogenetic tree are distantly related. They don't share the most recent common ancestor.

Explanation;

A phylogenetic tree is a diagram that describes the evolutionary relationships among carious species, based on the information available to and gathered by systematists. Should be viewed as hypotheses.

-The pattern of branching in a phylogenetic tree reflects how species or other groups evolved from a series of common ancestors. In trees, two species are more related if they have a more recent common ancestor and less related if they have a less recent common ancestor.