Question

question 7: apoptosis a occurs in normal cell division. b contains several checkpoints. c is programmed cell death. d is a mechanism of cell repair. e ensures equal dna in cytokinesis. 2.5 points question 8: \sister chromatids\ are: a genetically different b genetically identical c can be either 2.5 points question 9: many cells in your body stop at the g1 checkpoint and never divide again. some cells, like skin cells, will continue past the g1 checkpoint. what types of genes tell a skin cell to move on past the g1 checkpoint? a proto - oncogenes last saved 8:10:13 pm

Explanation:

• For the first question about apoptosis, it is defined as programmed cell - death, a highly regulated process in the body.
• For the second question, sister chromatids are formed by DNA replication and are genetically identical.
• For the third question, proto - oncogenes promote cell division and can signal a cell to move past the G1 checkpoint.

Answer:

• Question 7: C. is programmed cell death.
• Question 8: B. Genetically identical
• Question 9: A. proto - oncogenes