Mitosis, Meiosis, Chromosomes and DNA Replication Test s2

Mitosis, Meiosis, Chromosomes Test Review 1. Where is the nondisjunction on the karyotype?

2. Is this male or female?

3. What is Klinefelters syndrome? (Be able to recognize a

Klinefelters karyotype)

4. What is Down’s syndrome? (Be able to recognize a Down

syndrome karyotype)

5. What is Turner’s syndrome? (Be able to recognize a Turner’s

syndrome karyotype)

6. What is a karyotype? ______

7. What are autosomes? How many are in the above karyotype? ___

8. On a normal human karyotype: how many autosomes are there? ____

how many sex chromosomes? +____

TOTAL chromosomes? = ____

9. How are chromatin, chromatids, and chromosomes related?______

______

10. What is a deletion mutation? ______

11. What is an inversion mutation? ______

12. What is a duplication mutation? ______

13. What type of cells are gametes? ______

14. What type of cells are somatic cells? ______

15. If an animal has 40 chromosomes in each of its somatic cells and divides in mitosis how many chromosomes will the

new (daughter) cells have? ______

16. What is purpose of mitosis? ______

17. Mitosis produces how many new cells? ______Are those new cells haploid or diploid? ______

18. Meiosis produces how many new cells? ______Are those new cells haploid or diploid? ______

19. How are mitosis and meiosis different? ______20. What is crossing over? ______

21. What advantage does crossing over give a species? ______

22. If a cell is diploid with 40 chromosomes, how many chromosomes will each new cell have after MEIOSIS? ______

23. What is the advantage of sexual reproduction compared to asexual reproduction? ______

24. Which type of cell, somatic or gamete, is more likely to pass a change/damage from parent to offspring? ______

25. What are homologous chromosomes? ______

How can you tell? ______Draw a pair of homologous chromosomes.

26. Fill out the following chart

. Mitosis Meiosis

Produces: gametic cells / somatic cells (circle one) Produces: gametic Cells / somatic Cells (circle one)

Starts with ______cells Starts with ______cells

diploid / haploid (circle one) diploid / haploid (circle one)

How many times does the cell go through interphase?__ How many times does the cell go through interphase?__

How many times does the nucleus divide? ___ How many times does the nucleus divide? ___

End results in _____ IDENTICAL daughter cells End results in ____unique daughter cells

Daughter cells are diploid / haploid (circle one) Daughter cells are diploid / haploid (circle one) sexual or asexual reproduction (circle one) sexual or asexual reproduction (circle one)

Somatic Cell Gamete Cell Diploid # Haploid #

Organism Chromosomes # Chromosomes # Human 46 23 Cow 30 Mosquito 6 Chicken 78 - A beaver’s diploid number is 30. What is its haploid number? ______

- Each gamete cell in a donkey has 31 chromosomes. How many chromosomes in a donkey’s somatic cells? _____

- A gorilla’s diploid number is 48. How many chromosomes are in each gamete cell? _____

- Each somatic cell in a kangaroo has 12 chromosomes. What is the kangaroo’s haploid number? ______