1.Which of the following statements is correct?
A. Your eyes look different than your liver because the cells that make up these organs have different genes.
B. As cells and tissues differentiate, they lose the genes they do not need.
C. All cells have the same genes, but different genes are active in different cells.
D. All cells have the same genes, and all of a cell's genes are active at the same time.
2.Which of the following clues would tell you if the lac operon is on?
A. Lactose is absent.
B. The repressor protein has fallen off the molecule.
C. RNA polymerase is blocked by the repressor.
D. The cell membrane changes.
2007-02-07 04:30:21 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
C.
B. (I don't like the "fallen off. Unable to bind is technically more correct.)
Consult your textbook and class notes!
2007-02-07 04:33:33 · answer #1 · answered by Jerry P 6 · 0⤊ 0⤋
a million. circulatory gadget (the different options are all one ingredient in a gadget) 2. Phylum (you are able to remember this by King Phillip got here visiting For solid Soup - kingdom, phylum, type, order, family individuals, genus, species)
2016-09-28 13:25:43 · answer #2 · answered by ? 4 · 0⤊ 0⤋
1.C
2007-02-07 05:41:50 · answer #3 · answered by Anonymous · 0⤊ 0⤋
1. C
2. B
2007-02-07 04:33:30 · answer #4 · answered by raerae_2001 3 · 0⤊ 0⤋