Biodiversity-I Biology Of invertebrates B.Sc Model Question Papers : alagappauniversity.ac.in

Name of the University : Alagappa University
Degree : B.Sc
Department : Zoology
Subject Code/Name : Biodiversity-I : Biology Of invertebrates
Semester : I
Document Type : Model Question Papers
Website : alagappauniversity.ac.in

Download Model/Sample Question Paper  : APRIL 2011 : https://www.pdfquestion.in/uploads/alagappauniversity.ac.in/3957.-B.Sc.%20Zoology.pdf

Alagappa Biodiversity-I Question Paper

Time : 3 Hours
Maximum : 100 Marks

Part A

Related : Alagappa University Thallophyta, Bryophyta And Plant Pathology B.Sc Model Question Papers : www.pdfquestion.in/3963.html

Multiple Choices :
1. Radial Symmetry is found in :
(a) Honey bee.
(b) Amoeba.
(c) Prawn.
(d) Starfish.

2. Locomotion in Amoeba is :
(a) Amoeboid movement.
(b) Jumping movement.
(c) Both.
(d) None.

3. Larva of Aurelia :
(a) Amphiblastula.
(b) Planula.
(c) Parenchymula.
(d) None.

4. Genital papillae found in the ———— segments :
(a) 17th and 19th.
(b) 18th and 20th.
(c) 19th and 21st.
(d) All.

Fill in the blanks :
5. Cockroaches are ————— creatures.
6. Respiratory organ of Echinoderm in —————.
7. —————— transmits Wuchelaria banchroftii.
8. In pila aerial respiration occurs through —————.

True or false :
9. In Paramecium two flagella are present.
10. Father of zoology is Aristotle.
11. Highest degree of polymorphism is found in Molluses.
12. Excretory organ of prawn is tracheae.

Part B

(3 × 4 = 12)
Answer any three questions.
All questions carry equal marks. Each answer should not exceed 1 page.
13. Classify any two invertebrate organisms upto class level.
14. Distinguish between Amoeba and Entamoeba.
15. Draw the neat structure of Obelia colony.
16. What is metamerically segmentation ?
17. Write notes on Honey bee.
18. Mention the physiological role of Osphradium.

Part C

(4 × 7 = 28)
Answer any four questions. All questions carry equal marks. Each answer should not exceed 2 pages.
19. Write a short note on Bilateria.
20. Explain different types of nutrition in protozoa.
21. Describe the polymorphism in coelenterates.
22. Write the parasitic adaptations of worms.
23. Sacculina is crustacean parasite—Discuss.
24. Write short notes on Pearl culture.

Part D

(3 × 16 = 48)
Answer all questions. All questions carry equal marks. Each answer should not exceed 3 pages.
25. (a) Classify the Annelida upto class. Or
(b) Write an essay on the canal system of Ascon sponge.
26. (a) Explain the different larval stages of fasciola hepatica. Or
(b) Explain the thoracic appendages found in prawn.
27. (a) Discuss the different larvae of Echinoderm. Or
(b) Write a detailed note on life cycle of parasitic worm of Ascaris.

Genetics & Molecular Biology

(Non-CBCS—2004 onwards)
Time : 3 Hours
Maximum : 100 Marks
Section A (12 × 1 = 12)
Answer all the questions.
1. The allele produce same product but in lesser quantity
in compared with dominant one is called
(a) Co-dominants.
(b) Lethals
(c) Semi dominants
(d) Recessive

2. Gynandromorphs are the examples of
(a) Extra chromosomal inheritance
(b) Linkage
(c) Crossing over
(d) Sex mosaics

3. Genes, which are suppressed can be called
(a) Hypostatic
(b) Meristatic
(c) Metastatic
(d) Microstatic

4. Three common alleles for ABO locus are
(a) IA, IC, and IB
(b) IA, ID and IO
(c) IA, IB and IO
(d) IA, IC and ID

5. Sinistral cells coil to the
(a) Right
(b) Left
(c) Straight
(d) Height

6. Kappa particles were discovered by
(a) Beale etal,
(b) Morghon etal
(c) Sonneborn etal.
(d) Watson etal

7. Human improvement through altering external factors is called
(a) Euthenics.
(b) Eugenics
(c) Scigenics
(d) Adgenics

8. The merging of reproduction and genetic technologies results in forming
(a) Genetic repros
(b) Reprotechnology
(c) Reprogenetics
(d) Genetechnology

9. Transforming principle was proved in the year
(a) 1941
(b) 1942
(c) 1943
(d) 1944

10. RNA is proved as a genetic material by
(a) Fraenkel – Conrat and B. Singer
(b) Watson and Crick
(c) T.H. Morghon and Mendel
(d) Lamark and Mendel.

11. Holoenzyme refers
(a) Core emzyme and factor
(b) factor and Ribosome
(c) Ribosome and core enzyme
(d) DNA polymerase and factor

12. Repressor protein binds to the
(a) Promoter
(b) Operator
(c) Enhancer
(d) Suppressor

Section B : (3 × 4 = 12)
Answer any three questions.
13. Explain briefly about the importance of supplementary genes
14. Write short notes on colorblindness in man.
15. Explain the genetypic & phenotypic features of Klientelter’s syndrome.
16. What is outbreeding? Enumerate their plus and minuses.
17. Draw and label the molecular structure of DNA up to the (Aº) level
18. Comment on wobble hypothesis.