reproduction & development review 1

Reproduction & Development Review 1

1. Identify the phase of mitosis being described:

a. Cytokinesis occur• telophaseb. Chromosomes line up the middle• metaphasec. Chromosomes replicate• interphased. Chromosomes get pulled apart• anaphasee. Nuclear membrane break down• prophase

A B C D

E F2. What process is represented in the

diagram above?Mitosis3. Describe the 2 daughter cells in stage F. They have the same # of chromosomes as the parent cell.They are genetically identical to the parent cell.

4. For each of the following pictures, identify the phase of mitosis and what is occurring. The pictures are out of order.

Anaphase

The chromosomes are pulling apart and moving to opposite poles.

A.

Prophase

The nuclear membrane is disappearing.

Spindle fibers start to form.

Spindle fibersCentrioles

B.

Metaphase

Chromosomes are lined up in the middle of the cell,

C.

Telophase

Nuclear membrane has started to form around each set of chromosomesCytokinesis has begun (the cell membrane is pinching in).

D.

5. a. What process is represented?b. What type of cells are represented above?c. If the first cell is made up of 32 chromosomes, how many chromosomes are found in the daughter cells?d. How is this different from animal cell mitosis?

e. Label each step of mitosis above.

CBA D E FMitosis

Plant cells

32

In plant cell mitosis, cytokinesis occurs as a result of the cell plate forming between the 2 daughter cells. In animal cell mitosis, cytokinesis occurs as a result of the cell membrane pinching in between the 2 daughter cells.

Interphase Prophase Metaphase Anaphase Telophase

6. What phase is it?

Anaphase Telophase Anaphase Metaphas

e

7. What phase is it?

Interphase

prophase

Telophase Metaphase

8. a. What is the name of the process represented in the diagram?b. What type of cell division is involved?c. Identify some organisms that use this process.

d. What type is reproduction is represented?e. Describe the offspring of this process.

Binary fission mitosi

sameba, paramecia, bacteria

asexual

Offspring genetically identical to parent cell.

9. a. What does structure B represent?

b. What process does A represent?

A

centrioles

cytokinesis

10. a. What is the name of the process represented in the diagram?b. What type of cell division is involved?c. Identify some organisms that use this process.

d. What type is reproduction is represented?e. Describe the offspring of this process.

Buddingmitosis

Yeast, hydra

asexual

Offspring genetically identical to parent cell.

11. Identify the type of cell division that is used during asexual reproduction.•Mitosis12. What is the difference between budding and binary fission?•Budding is an unequal division of cytoplasm while binary fission is an equal division of cytoplasm.13. Potatoes are known as ____.•tubers14. Mushroom reproduce by releasing ___.•spores15. This type of reproduction requires 1 parent.•asexual16. Describe 1 example of regeneration.•Starfish can regrow lost arms. Lizards can regrow a lost tail.

17. The type of asexual reproduction in which involves the production of single cells by mitosis that are released into the environment is called

1. regeneration2. binary fission3. sporulation4. vegetative propagation

18. The type of asexual reproduction in which one cell divides into to two cells that are of equal size is called

1. regeneration2. binary fission3. sporulation4. vegetative propagation

19. Asexual reproduction in plants is known as 1. regeneration2. vegetative propagation 3. binary fission4. sporulation

20. Identify each type of asexual reproduction below.

Regeneration

Budding Binary fission

Vegetative propagationSporulation Vegetative

propagation

22. What are the differences between asexual and sexual reproduction?•Asexual repro uses one parent while sexual

repro uses 2 parents.

•Asexual repro produces offspring that are genetically identical to the parent. Sexual repro produces offspring that are similar but NOT genetically identical to the parents (genetic variation). •Sexual repro involves the joining of gametes while asexual repro does not require gametes.

•Asexual repro uses mitosis while sexual repro uses meiosis.

23. What process is represented in the diagram?

24. How many chromosomes are found in these human gametes?

meiosis

23

A B

25. What is the difference between process A and process B?A is mitosis and B is meiosis.

Fertilization

Zygote

mitosis

26. Label each stage of embryonic development.

27. Which statement is true about sexual reproduction?(1)It produces offspring with half the number of

chromosomes as the parent.(2)It involves sex cells joining together. (3)It produces offspring that are genetically identical to

the parents.

28. The result of meiosis are daughter cells that have(1) half the number of chromosomes(2) a quarter of the number of chromosomes(3) double the number of chromosomes(4) the same number of chromosomes