medical entrance questions

Tuesday, June 24, 2008

ANIMAL REPRODUCTION

Animal Reproduction

1. Oogenesis is a process for the formation of

1. Red blood cells 2. Sperms 3. Ova 4. Sperms and Ova

2. Ova mammals were first identified by

1. Malpighi 2. Wolff 3. Von Baer 4. Aristotle

3. Oogenesis consists of

1. Multiplication phase 2. Growth phase 3. Maturation phase 4. All of these

4. In telolecithal eggs, yolk is present

1. On both sides 2. on the side 3. in centre 4. Throughout the egg

5. Human eggs are

1. Microlecithal 2. Alecithal 3. Macrolecithal 4. Mesolecithal

6. Those who though that egg had a miniature organism were called

1. animalculists 2. embryologists 3. biologists 4. Ovists

7. In mammalian Oocyte, the corona radiata is

1. non cellular 2. Cellular 3. Membranous 4. Fibrous

8. Ovarian follicles of human female were discovered by

1. Wolff 2. Aristotle 3. Malpighi 4. De Graaf.

9. The egg of frog is

1. Mesolecithal 2. Microlecithal 3. Alecithal 4. None of thse.

10. Mesolecithal eggs have yolk which is in

1. Small amount 2. Moderate amount 3. Large amount 4. Extremely small amount

11. The stage of oogenesis which enters meiosis is called

1. Oogenium 2. Secondary oocyte 3. Primary oocyte 4. Polocyte

12. The egg which has a small amount of yolk is a

1. Macrolecithal egg 2. Mesolecithal egg 3. Microlecithal egg 4. Polylecithal egg

13. The line passing through the animal and vegetal poles is

1. Primary axis 2. Secondary axis 3. Cleavage 4. Meridian

14. Cortical granules found in the egg cortex consist of

1. Lipid granules 2. Proteins 3. Glycogen 4. Mucopolysaccharides

15. The yolk is evenly distributed in eggs which are

1. Isolecithal 2. Mesolecithal 3. Macrolecithal 4. Centrolecithal

16. Centrolecithal eggs are found in

1. Insects 2. Birds 3. Salamander 4. Amphioxus

17. The stage in which many of the cells remain in the ovary of human females is

1. Secondary oocyte 2. Oogonium 3. Primary oocyte 4. Ovum

18. Polar bodies are

1. Non-functional 2. Functional 3. Used during fertilization 4. Diploid

19. Example of tertiary membrane is

1. Jelly layer of frog 2. Albumen of chick 3. Yellow yolk of chick 4. All the three

20. The egg cytoplasm is

1. Ectoplasm 2. Ooplasm 3. Endoplasm 4. Germinal vesicle

21. Polar bodies are

1. Haploid 2. Diploid 3. Triploid 4. Polyploid

22. The primary membrane found around the plasma membrane of ovum is

1. Egg coats 2. Vitelline membrane 3. Tertiary membrane 4. egg cortex

23. Microlecithal and macrolecithal eggs are divided on the basis of

1. Size of yolk granules 2. Quality of yolk 3. Location of yolk 4. Amount of yolk

24. During ovum formation small polar bodies are produced by the process of

1. Amitosis 2. Mitosis 3. Meiosis 4. Cytokinesis

25. A thin vitelline membrane is formed around

1. Secondary oocyte 2. Primary oocyte 3. Oogonium 4. Ovum


ANSWERS

1. (3) 2. (3) 3. (4) 4. (2) 5. (2) 6. (4) 7. (2) 8. (4) 9. (1) 10. (2)
11. (3) 12. (3) 13. (1) 14. (4) 15. (1) 16. (1) 17. (3) 18. (1) 19. (4) 20. (2)
21. (1) 22. (2) 23. (4) 24. (3) 25. (2)




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