Cellular reproduction and chromosomes
Download
1 / 25

Cellular Reproduction and Chromosomes - PowerPoint PPT Presentation


  • 168 Views
  • Uploaded on

Cellular Reproduction and Chromosomes. Chapter Five: Cellular Reproduction and Chromosomes 5.1 and 5.2 (5.3 after the last slide). 1. What is the continuous sequence of growth and division known as?. The Cell Cycle. 2. True or False? The growth stage is known as Mitosis.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Cellular Reproduction and Chromosomes' - aricin


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Cellular reproduction and chromosomes

Cellular Reproduction and Chromosomes

Chapter Five: Cellular Reproduction and Chromosomes

5.1 and 5.2 (5.3 after the last slide)


1 what is the continuous sequence of growth and division known as
1. What is the continuous sequence of growth and division known as?

  • The Cell Cycle

2. True or False? The growth stage is known as Mitosis.

  • False- The growth stage is known as interphase.


3 the division of a cell s nucleus is known as
3. The division of a cell’s nucleus is known as known as?

  • A. Meiosis

  • B. Mitosis

  • C. Metaphase I

  • D. Prophase I

4. What is each chromosome made up of?

  • Two sister chromatids


5. Gametes, either egg or sperm, are ___ which means they contain only one copy of each type of chromosome that the diploid parent cell contains.

  • Haploid


6 give examples of mitosis
6. Give examples of mitosis. contain only one copy of each type of chromosome that the diploid parent cell contains.

  • When a starfish loses an arm as a result of an attack by a predator, a new arm is regenerated by the process of mitosis.

  • Cells that do not function properly are replaced by mitosis.

  • Cells are replaced when they die through mitosis.


7. True or False? The centromere within the nucleus holds the genetic info needed to maintain the cell and to make new copies of the cell.

  • False- chromosomes

8. What does the centromere do?

  • Holds together the sister chromatids


9 the cell divides to produce two new cells
9. The _____ cell divides to produce two new _____ cells. the genetic info needed to maintain the cell and to make new copies of the cell.

  • Parent, daughter

10. How many chromosomes do all human somatic (body) cells have?

  • A. 24

  • B. 21

  • C. 42

  • D. 46


11 what are the four phases of mitosis
11. What are the four phases of mitosis? the genetic info needed to maintain the cell and to make new copies of the cell.

  • Prophase

  • Metaphase

  • Anaphase

  • Telophase

12. What happens before mitosis begins?

  • Interphase


13 during which phase of mitosis do the chromatids reach the two opposite poles within the cell
13. During which phase of mitosis do the chromatids reach the two opposite poles within the cell?

  • Telophase (the 4th phase)

14. During which phase of mitosis do the spindle fibres attach to the centromere of the replicated chromosomes?

  • Metaphase (the 2nd phase)


15. During which stage of mitosis does chromatin condense and thicken to form visible duplicated chromosomes?

  • Prophase (the 1st phase)

16. During which phase of mitosis are the chromatids pulled to opposite poles of the cell?

  • Anaphase (the 3rd phase)


17 what is the separation of the cytoplasm and the formation of two new daughter cells called
17. What is the separation of the cytoplasm and the formation of two new daughter cells called?

  • A. Cytokinesis

  • B. Mitosis

  • C. Meiosis

  • D. Genetic Variation


18 what are some of the causes of mutations
18. What are some of the causes of mutations? formation of two new daughter cells called?

  • Various mutagens such as toxic compounds (smoke, chemicals, etc), radiation or viruses

19. What are genes called that can be activated by a mutation?

  • Oncogenes


20 true or false meiosis is a special type of cell division that occurs only in reproductive organs
20. True or False? Meiosis is a special type of cell division that occurs only in reproductive organs.

  • True

21. True or False? The first part of meiosis that reduces the chromosome number from diploid to haploid is known as crossing over.

  • False- Reduction Division


22 how many autosomes and sex chromosomes does each human sperm or egg cell contain
22. How many autosomes and sex chromosomes does each human sperm or egg cell contain?

  • A. 20 autosomes, 2 sex chromosomes

  • B. 24 autosomes, 1 sex chromosome

  • C. 22 autosomes, 1 sex chromosome

  • D. 22 autosomes, 2 sex chromosomes


25 true or false homologous chromosomes are identical
25. True or False? Homologous chromosomes are identical. sperm or egg cell contain?

  • False- similar but not identical

26. What type of chromatids do not belong to the same chromosome and undergo crossing over?

  • Non-sister chromatids


27 true or false the random positioning of tetrads along the cell s equator is called crossing over
27. True or false? sperm or egg cell contain?The random positioning of tetrads along the cell’s equator is called crossing over.

  • False – independent assortment

  • True or false?The production of gametesis known as gametogenesis.

  • True


29. The process of male gamete production in animals is called ________, and the female gamete production is called ______?

  • Spermatogenesis, Oogenesis

30. The re-assortment of chromosomes and genes carried through crossing over is known as _______?

  • Genetic recombination


31 the diploid germ cells that start oogenesis and spermatogenesis are called
31. The diploid germ cells that start Oogenesis and spermatogenesis are called _______?

  • A) Ooganius, Spermaganius

  • B) Egg, Sperm

  • C) Oogonium, Spermatogonium

  • D) Oogoogle, Spermagoogle


32 true or false the failure of chromosomes to separate properly is known as nonjunction
32. True or false? spermatogenesis are called _______?The failure of chromosomes to separate properly is known as nonjunction.

  • Trisomy

  • False - Nondisjunction

33. What is it called when all the cells that develop from the zygote have an extra chromosome?


34. True or false? spermatogenesis are called _______?A zygote containing three sets of chromosomes is called polyploid, and an organism having more than two sets of chromosomes are called triploid.

  • False – triploid, polyploid


35. True or false? spermatogenesis are called _______? The transmission of genes that are located on one of the sex chromosomes is called chromosome theory of inheritance.

  • False – sex–linked inheritance

36. The combined research of Mendel, Sutton, and Boveri formed the basis of what?

  • Chromosome theory of inheritance


37 what is the inactivated x chromosome called
37. What is the inactivated X chromosome called? spermatogenesis are called _______?

  • A) Barr body

  • B) Golgi body

  • C) Barrd body

  • D) Carr body

38. What are Punnett squares used for?

  • To predict the outcome of crosses of genes.


39 what is it called when many traits are controlled by more than one gene
39. What is it called when many traits are controlled by more than one gene?

  • Polygenic Inheritance

40. What is a range of variation in a trait called?

  • A. Modifier genes

  • B. Continuous variation

  • C. Variation genes

  • D. Modifier traits

You got it!



Make sure that you are modifier genes.

ready for the test!


ad