Question

1. what condenses and attaches to fibers during mitosis?

a) dna b) centromeres c) pairs of chromosomes d) cytoplasmic

1. what are tightly wound dna molecules that contain important cell information called?

a) centromeres b) chromosomes c) chromatids d) microtubules

1. where do sister chromatids attach to each other?

a) centromere b) spindle c) microtubule d) cytoplasm

1. what pulls apart the sister chromatids?

a) centromeres b) microtubules c) cytoplasm d) dna

1. at the end of mitosis, what develops around each set of chromosomes?

a) cytoplasm b) dna c) cell wall d) nuclear envelope

1. what is the end result of mitosis?

a. two new cells with identical sets of chromosomes
b. two new cells with different sets of chromosomes
c. one cell with two identical sets of chromosomes
d. one cell with two different sets of chromosomes

Explanation:

• Question 5: Centromeres are the regions where chromosomes condense and attach to spindle fibers during mitosis.
• Question 6: Chromosomes are tightly wound DNA molecules that carry genetic information.
• Question 7: Sister chromatids attach at the centromere.
• Question 8: Microtubules (spindle fibers) pull sister chromatids apart during anaphase of mitosis.
• Question 9: At the end of mitosis (telophase), a nuclear envelope reforms around each set of chromosomes.
• Question 10: Mitosis results in two daughter cells that are genetically identical (same set of chromosomes) to the parent cell.

Answer:

1. b) centromeres
2. b) chromosomes
3. a) centromere
4. b) microtubules
5. d) nuclear envelope
6. a. Two new cells with identical sets of chromosomes