Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

1. The figure below shows a phase of mitosis. Which cell structures are indicate

ID: 277042 • Letter: 1

Question

1. The figure below shows a phase of mitosis. Which cell structures are indicated by the letter X? Chromosomes Centrioles Kinetochore microtubules. Centrosomes Centromeres 2. The products of mitosis are two genetically identical cells. four nuclei containing half as much DNA as the parent nucleus. four genetically identical nuclei. two genetically identical nuclei. one nucleus containing twice as much DNA as the parent nucleus. 3. Starting with a fertilized egg (i.e., a zygote), a series of five mitotic cell divisions would produce an early embryo with how many cells? 8. 64 16. 32 4.

Explanation / Answer

Hi Answer:

[According to my knowlegde your all questions are right. I checked carefully and got similar results to your observations.]

1.The figure below shows a phase of mitosis. Which cell structure are indicated by the letter X?

Answer: Kinetochore microtubules

2.The products of mitosis is

Answer: Two genetically identical cells

3.Starting with a fertilized egg a series of five mitotic cell divides would produce as early embryo with how many cells

Answer: 32

4.A cell in G2 contains 18 pairs of sister chromatids. This same cell in G1 would have

Answer: 9 chromosomes

5.In the diagram below, the cell in prophase and anaphase have….and ..total chromosomes, respectively.

Answer: (4 and 8)

6.Late in mitotic anaphase a cell with 28 daughter chromosomes has….centromeres

Answer: 28

7.Which of the following aspects of the cell cycle would be most disrupted by cytochalasin B, a drug that binds to actin monomers and prevents them from polymerizing into filaments

Answer: Cytokinesis

8.A cyclin dependent kinase (Cdk) is

Answer: An enzyme that attaches phosphate groups to other proteins

9.A mutation frequently causes a chromosomes of a cell line to become detached from the spindle. The most likely consequences of this mutation is that…..cells will be stopped at the…..checkpoint.

Answer: More and M

10.According to the image below, the…..triggers the entry of a cell into mitosis

Answer: Removal of inhibitory phosphate groups from Cdk1 by the Cdc25 phosphatase