Question

1. according to the passage, what is the primary function of mitosis? a. to create four genetically unique daughter cells for sexual reproduction. b. to ensure genetic continuity by producing two genetically identical daughter cells. c. to reduce the number of chromosomes in the parent cell by half. d. to introduce genetic variation through the exchange of dna segments. 2. in which stage of mitosis does the dna condense and coil into visible, x - shaped chromosomes? a. metaphase b. anaphase c. telophase d. prophase 3. the passage describes a chromosome as being made of two identical halves. what are these halves called? a. sister chromosomes b. daughter dna c. sister chromatids d. parent chromatids

Explanation:

1. Mitosis is a process of asexual reproduction where a parent cell divides into two genetically identical daughter cells. Its main function is cell growth and repair, not sexual reproduction which involves meiosis. So the answer to question 1 is A.
2. Genetic variation in the parent - cell during mitosis is not introduced through DNA segment exchange as in meiosis. Mitosis maintains genetic continuity. So the answer to question 2 is A.
3. A chromosome in mitosis is made of two identical halves called sister chromatids before separation. So the answer to question 3 is D.

Answer:

1. A. To create two genetically identical daughter cells for growth and repair.
2. A. No genetic variation is introduced through the exchange of DNA segments.
3. D. Sister chromatids