11. Cell Division

Review of the Cell Cycle

Mitosis - Stages of Mitosis | Cells | Biology | FuseSchool

No. The cell cycle does not reduce the chromosomal complement.

No. At the completion of the cell cycle, each daughter cell will have the same chromosomal complement as the parent cell.

No. Consider that interphase precedes mitosis.

Review the relationship between chromosomes and chromatids.

If a cell contains 60 chromatids at the start of mitosis, how many chromosomes will be found in each daughter cell at the completion of the cell cycle?

A cell with high concentrations of actin and myosin.

A cell with two completely identical nuclei.

A cell with two non-identical nuclei with half the amount of DNA.

Cytokinesis usually follows mitosis. If a cell completed mitosis but not cytokinesis, the result would be:a) A cell with a single large nucleus.b) A cell with high concentrations of actin and myosin.c) A cell with two abnormally small nuclei.d) A cell with two completely identical nuclei.e) A cell with two non-identical nuclei with half the amount of DNA.

Memorizing the Steps of the Cell Cycle

Prophase: chromosomes become more tightly coiled

Metaphase: chromosomes line up on the equatorial plane

Anaphase: there is movement of the chromosomes to the poles

Telophase: chromosomes become more extended

Metaphase: the nuclear envelope disappears

Review the events of each phase of the cell cycle.

Which of the following represents a mismatch or incorrect description?

Prevents the formation of a cleavage furrow.

Prevents the formation of the nuclear envelope.

Movement of the chromosomes during anaphase would be most affected by a drug that:a) Prevents the formation of a cleavage furrow.b) Prevents the formation of the nuclear envelope.c) Prevents elongation of microtubules.d) Prevents shortening of microtubules.

No. This is the number of pairs of chromosomes in an individual without Down syndrome.

No. This is the number of chromosomes in a cell of someone without Down syndrome.

No. This is the number of chromatids in cells of someone without Down syndrome.

No. It seems as though you are reasoning that the Down cell has an extra pair of chromosomes, not just a single extra chromosome.

Down syndrome is characterized by cells having three copies of chromosome 21. As a cell in an individual with Down syndrome prepares to enter mitosis, how many chromatids would be present?

No. Think of all the different times that you cut or scratched your skin.

No. Cancer cells are characterized by the failure to recognize or respond to the signals that prevent cell division.

No. If this were true, it would be impossible for the embryo to grow.

All of these cell types are equally unlikely to divide at any given time.

No. One of these cell types is markedly less likely to divide than the others.

Consider the function and location of each of these cells.

You would be ,unlikely to see which of the following human cells dividing?

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General Biology

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1. Introduction to Biology

2. Chemistry

3. Water

4. Biomolecules

5. Cell Components

6. The Membrane

7. Energy and Metabolism

8. Respiration

9. Photosynthesis

10. Cell Signaling

12. Meiosis

13. Mendelian Genetics

14. DNA Synthesis

15. Gene Expression

16. Regulation of Expression

17. Viruses

18. Biotechnology

19. Genomics

20. Development

21. Evolution by Natural Selection

22. Evolution of Populations

23. Speciation

24. History of Life on Earth

25. Phylogeny

26. Prokaryotes

27. Protists

28. Plants

29. Fungi

30. Overview of Animals

31. Invertebrates

32. Vertebrates

33. Plant Anatomy

34. Vascular Plant Transport

35. Soil

36. Plant Reproduction

37. Plant Sensation and Response

38. Animal Form and Function

39. Digestive System

40. Circulatory System

41. Immune System

42. Osmoregulation and Excretion

43. Endocrine System

44. Animal Reproduction

45. Nervous System

46. Sensory Systems

47. Muscle Systems

48. Ecology

49. Animal Behavior

50. Population Ecology

51. Community Ecology

52. Ecosystems

53. Conservation Biology

[BOOK BIO] CLUTCH

Introduction to Cell Division

Cancer

Introduction to the Cell Cycle

Interphase

Organization of DNA in the Cell

Cytokinesis

Cell Cycle Regulation

Phases of Mitosis

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