question: Write a question you would see in a school textbook. OPTIONS:
- It is the area where microtubules are formed.
- It is the area where the nucleus is during cell division.
- It is the area of alignment for the chromosomes.
- It is the area of attachment for chromatids.
answer: What role does the centromere play in cellular reproduction?

question: Write a question you would see in a school textbook. OPTIONS:
- selective breeding
- genetic mutation
- crossbreeding
- cloning
answer: Which process has most likely occurred when new traits appear in a species?

question: Write a question you would see in a school textbook. OPTIONS:
- DNA.
- RNA.
- ATP.
- ADP.
answer:
Genes are located on chromosomes which are composed of