Please help me not timed but still need help: Which nitrogen base sequence is the partner of C–A–T–C–G–A? C–A–T–C–G–A
G–T–A–G–C–T
T–G–C–T–A–G
G–C–A–T–G–T

A

Explanation: srry if im wrong

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.