(Q).
Q: What is essential for forming new genes? Choices: - enough mutations - enough chromosomes - chromosome deversity - large mutations A:
(A).
large mutations

(Q).
Q: What large carboxylic acid with three ionizable hydrogen atoms gives some fruits a sour or tart flavor? Choices: - ammonia acid - beryllium acid - hydrochloric acid - citric acid A:
(A).
citric acid

(Q).
Q: Humans have about 20,000 to 22,000 genes scattered among 23 of these? Choices: - neutrons - ribosomes - atoms - chromosomes A:
(A).
chromosomes