1. what makes up sides of the ladder of a dna molecule?
2. how is a rna different from a dna?
3. what role does rna play in cell life
4.what are the three kinds of rna and what does each do?
5. what can cause mutation?

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm