Biology Section II Zoology – Important Questions Bank for Meghalaya Board (MBOSE) HSSLC 2016 Examination

Biology Section II Zoology  – Important Questions Bank for Meghalaya Board (MBOSE) HSSLC 2016 Examination

(Section II Zoology)


We had mentioned some tips for cracking the HSSLC Meghalaya Board (MBOSE) exam here: HSC Study Tips to Crack HSC Exams.

We had also shared  Important Questions Bank for HSSLC Meghalaya Board (MBOSE)  Examination 2016 and students have really appreciated it and showered us with love last year.

Today, we are posting the Biology (Section I Botany) – Important Questions Bank for HSSLC Meghalaya Board (MBOSE)  2016 Examination to make life easy for all you HSSLC students.

Without making you wait any further, please find the questions below:

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This question paper consists of 5 (five) Groups—A, B, C, D and E.

Group—A consists of 4 questions (multiple-choice type). Each question carries 1 mark.

Group—B consists of 4 questions (very short-answer type). Question Nos. 5 to 8 are of 1 mark each to be answered in 1 word or 1 sentence each.

Group—C consists of 4 questions (short-answer type—I). Question Nos. 9 to 12 are of 2 marks each to be answered in 20–30 words each.

Group—D consists of 3 questions (short-answer type—II). Question Nos. 13 to 15 are of 3 marks each with  alternatives to be answered in 30–40 words each.

Group—E consists of 2 questions (long-answer type). Question Nos. 16 and 17 are of 5 marks each with alternatives to be answered in 70–80 words each.


Q.1 Choose and write the correct answer of the following :

1. The first phase of embryonic development is

(a) cleavage

(b) blastulation

(c) gastrulation

(d) placentation

2. The exchange of genetic material between chromatids of paired homologous chromosomes during first meiotic division is called

(a) transformation

(b) chiasmata

(c) crossing-over

(d) synapsis

3 . Which of the following is a cause for loss of

biodiversity?

(a) Habitat degradation

(b) Invasion of non-native species

(c) Pollution

(d) All of the above

4. Manas Wildlife Sanctuary is located in

(a) Meghalaya

(b) Assam

(c) West Bengal

(d) Rajasthan

GROUP—B

5. What is allele?

6. What is addiction?

7. In which State is Bharatpur Bird Sanctuary located?

8. What is transgenic organism?

9. Give a term for the change of spermatid into a sperm.

10. What are pathogens?

11. What is genotype?

12. Define immunity.

13. Write the full form of FSH.

14. Name the main ingredient of tobacco.

15. Name the parasite that causes malaria.

16. Name the hormone that causes uterine contraction.

GROUP—C

17. What is the first milk which comes out from mother’s mammary gland called? State its importance.

18. Why did Mendel selected pea plants for his experiment?

19.  Define wildlife. Which animal is used as a symbol for WWF?

20. Name two sex-linked diseases.

21. Where are Leydig cells found? What are their functions?

22. Where are Sertoli cells found? What is their function?

23.  What are vestigial organs? Name two vestigial organs of man.

24. Define codominance and incomplete dominance.

25.  Differentiate between complete linkage and incomplete linkage.

GROUP—D

26. What are active and passive immunities? Give examples.

27. Differentiate between B-cells and T-cells.

28.  What is biodiversity? Explain the methods of biodiversity conservation.

29.  Define ovulation. Draw a labelled diagram of a mammalian ovum.

30.  Define cleavage. Draw a labelled diagram to show different stages of cleavage.

31. Differentiate between antigen and antibody.

32.  State at least four salient features of cancer cell. How does metastasis occur?

33.  When was Human Genome Project launched? What are the main aims of the Project?

34.  Explain the term ‘bioethics’. What are the different bioethical ways concerning biotechnology?

35.  What is biodiversity? List two causes for the loss of biodiversity.

36.  Differentiate between carcinoma and sarcoma.

37.  What is apiculture? Mention the products obtained from apiculture.

38.  Differentiate between humoral immune system and cell-mediated immune system.

GROUP—E

39.  What is DNA fingerprinting? Write a note on its applications.

40.  A man with AB blood group marries a woman with O blood group. Show the genotypes and phenotype of their progeny.

41. Where does oogenesis occur in human being? Describe the different phases of oogenesis with the help of a diagram.

42.  What is global warming? Explain the possible effects of global warming.

43.  (a) In garden pea, tall (T) is dominant to dwarf (t) and red colour flower (R) is dominant to white (r). A pure tall red-flowered plant is crossed to dwarf white-flowered plant and the F1 hybrid were allowed to self-fertilize.

(i) Give the parental genotype.

(ii) Give the genotypic and phenotypic ratio of the F2 generation using Punnett square.

44.  In human being, blue eye colour is recessive to brown eye. A brown-eyed man has a blue-eyed mother.

(i) What is the genotype of the man and his mother?

(ii) What are the possible genotypes of his offspring if he marries a blue-eyed woman?

45.  Define spermatogenesis. Where does spermato- genesis take place? Name the hormone which controls spermatogenesis. Give the significance of spermatogenesis.

46.  What is placenta? Explain the function of placenta.

47.  State Mendel’s Law of Independent Assortment. Support the law by showing the dihybrid cross between yellow and round seeded plant (YYRR) and green wrinkled seeded (yyrr) plant for two generations. Show the F2 phenotypic ratio.

48.  A man with blood group A married a woman with blood group B. They have a son with AB blood group and a daughter with blood group O. Work out the cross and show the possibility of such inheritance.

49.  What is fertilization? In which part of the human female reproductive system does it take place? Explain the significance of fertilization.

50.  What is implantation? Where does it take place? How many days after fertilization does it take place in human? Explain briefly how it occurs.

 

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