blondy2122
Jul 24, 2007, 09:18 AM
Which one of the following statements accurately describes an enzyme?
A) It causes chemical reactions to occur faster.
B) It's broken down into sugar as it performs its job.
C) It functions as a stabilizing molecule.
D) Its main job is to keep reluctant molecules separated.
Why is the rate at which mutations occur rather slow?
A) Cells monitor their DNA and correct errors they find.
B) Mutations usually occur in body cells, not in cells that become eggs and sperm.
C) Creatures with mutations don't affect critical protein parts.
D) Most mutations don't affect critical protein parts.
A) It causes chemical reactions to occur faster.
B) It's broken down into sugar as it performs its job.
C) It functions as a stabilizing molecule.
D) Its main job is to keep reluctant molecules separated.
Why is the rate at which mutations occur rather slow?
A) Cells monitor their DNA and correct errors they find.
B) Mutations usually occur in body cells, not in cells that become eggs and sperm.
C) Creatures with mutations don't affect critical protein parts.
D) Most mutations don't affect critical protein parts.