An arrangement of all the chromosomes of a diploid call is called a(n) . For a human cell, this arrangement contains 22 pairs of and one pair of .

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca