A cell nucleus contains bundles of genetic material called

I am pretty sure it is DNA

Explanation:

I hope this helps! :)

The cell nucleus contains all of the cell's genome.

(except for the small amount of mitochondrial DNA and, in plant cells, plastid DNA.) < Ignore this part

Credits to: Wikipedia

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.

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.