12. Dna B contacts with subunits of clamp to establish helicase-primase and catalytic core connection a) alpha subunit b) W subunit c) T subunit d) Any one of above​

the animal that would be cutest if scaled down to the size of a cat? elephant

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

c. is the correct answer