Question

the phase of mitosis where the chromosomes align in the middle of the cell.

a. anaphase
b. metaphase
c. prophase
d. telophase
e. interphase

value: 8

genes that stimulate cell division.

a. proto - oncogenes
b. care genes
c. tumor suppressor genes
d. all of these answers are correct

value: 8

genes that inhibit cell division.

a. proto - oncogenes
b. care gene
c. tumor suppressor genes
d. all of these answers are correct

Explanation:

1. In mitosis, during metaphase, chromosomes align at the cell - equator (middle of the cell). Anaphase is when sister chromatids separate, prophase is the start of chromosome condensation and spindle formation, telophase is the end - stage of mitosis with nuclear envelope re - formation, and interphase is the non - dividing stage of the cell cycle.
2. Proto - oncogenes are normal genes that can stimulate cell division. There is no such well - known "CARE genes" in the context of cell division regulation, and tumor suppressor genes inhibit cell division.
3. Tumor suppressor genes function to inhibit cell division and prevent uncontrolled cell growth. Proto - oncogenes stimulate cell division, and there is no established "CARE gene" with the role of inhibiting cell division.

Answer:

1. b. Metaphase
2. a. Proto - oncogenes
3. c. Tumor suppressor genes