Crossing-over involves the exchange of genetic information between
a. rna strands.
b. sex chromosomes.
c. non sister chromatids.
d. different genes.

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes