Question

3. Are the chromosomes in your skin cells identical to the chromosomes in your muscle cells? 4. Are the chromosomes in two sperm cells produced by the same man identical? 5. If a tree limb is cut off, the tree can heal itself. Name the type of cell division involved in the replacement of damaged cells. 6. A fertilized egg divides to form 2 cells. Are they identical? Name the type of cell division involved in this example. Name the type of cell division involved in the production of pollen in flowers. Euglena is the name of a single-celled member of the Protista that caries out photosynthesis in the light 7. digests food particles in the dark Name the type of cell on a Euglena uses to reproduce, h ea 9. Some organisms (such as Amoeba, dandelions, and strawberries) are able to reproduce (without sex). What is the advantage of sexual reproduction'? more offspring are produced with sexual reproduction than with asexual reproduction the offspring from sexual reproduction are all better adapted to a changing environment the offspring from sexual reproduction are not identical so that some of them may be better adapted to a changing environment Sexual reproduction is simpler than asexual reproduction a. b. c. d.

Answer 1

3. Yes skin and muscle cell chromosomes are identical having same set of autosomes.

4. No, only autosomes are identical but both sperms may have different sex-chromosomes.

5. Mitosis division is involved in the replacement of damaged cells.

6. Fertilized egg cells divide by means of mitosis and they are identical.

7. Pollen in flowers are produced by meiosis.

8. Euglena reproduces asexually by binary fission, and produce two identical daughter cells.

9. In sexual reproduction crossing over occur which leads to variation which is beneficial to the organisms.

A. False , more offspring can be produced by asexual reproduction .

B. Sexually reproducing species are better adapted to the changing environment but not all the organisms, it depends upon their genetic make-up .

C. True , all sexually reproducing organisms are not identical so some of them may cope with changing environment.

D. No, sexual reproduction is more complex and advanced mode of reproduction than asexual reproduction .