Problem:OPTIONS:
- dopamine
- insulin
- estrogen
- testosterone

Q: The testes produce what hormone? A:
****
A: testosterone

Q: What is the principal cell of connective tissues? A:
OPTIONS:
- organism
- Cancer
- neural
- fibroblast
fibroblast

Q: A change in the sequence of bases in dna or rna is called a what? A:
OPTIONS:
- infection
- isolation
- accumulation
- mutation

Answer: mutation

Question: Q: Two water molecules contain 4 hydrogen atoms and how many oxygen atoms? A:
OPTIONS:
- 1
- 4
- 6
- 2
Answer: 2

input with options: Q: What is used as a vector for gene insertion in ex vivo gene therapy? A:
OPTIONS:
- typhus
- penicillin
- bacteria
- virus
output: virus

Problem: OPTIONS:
- cell membrane
- golgi apparatus
- cell wall
- cell nucleus
Q: Q: Unlike prokaryotes, eukaryotes have what? A:
Answer:
cell nucleus