Nalanda Open University
Annual Examination 2016
B.Sc. Zoology (Honours), Part-III
Paper-VI
Time: 3.00 Hrs. Full Marks: 80
Answer any five questions. Questions No. 1 is compulsory. All questions carry equal marks.
1. Multiple choice questions. (Each question carries Two marks)
Which is trisomic condition?
2n-1 2n+1 2n+2 2n+3
Male honey bee is
Triploid Haploid Tetraploid Diploid
The site of cholesterol synthesis is
Nucleus Endoplasmic reticulum
Golgi body Mitochondria
When many sperms enter in the egg, the condition is known as
Physiological polyspermy Pathological polyspermy
Polyandry Polygamy
Variation in the morphology of individual chromosome is
Haploidy Polyploidy
Inversion Chromosomal aberration
Insulin is a
Carbohydrate Fat Protein None
Polypeptide is assembled on
DNA molecule Nuclear membrane
Nuclear pore Ribosome
(viii) In hypertonic solution, RBC
Shrinks Undergoes indosmosis
Swells Maintains its shape
2. Give an account of DNA replication.
3. Write an essay on mutation.
4. Describe the process of fertilization.
5. Give an account of structure and function of mitochondria.
6. Describe the process of active transport.
7. Give the different types of chromosome and their functions.
8. Describe structure and function of endoplasmic reticulum.
9. Describe the types of extranuclear elements.
10. Write short notes on any Two of the following
Genotype Lethal mutation
Klinefelter's syndrome Cytoskeleton