Nalanda Open University
Annual Examination 2017
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)
Male honey bee is:
Diploid Tetrapoid Haploid Triploid
Ribosome is discovered by:
Bovari Porter Kollinkar Palade
Lysosome was discovered by:
Palade Robertson deDuve dvaries
Mutation which is fatal to the organism is:
Gene Mutation Lethal Mutation
Point Mutation Reverse Mutation
Which of the following structure is vestigial organ in man.
Spleen Coclia
Islet of Langerhans Appendix
Downs Syndrome in human being is due to:
Monosomy Triploid Trisomy Nullisomy
The site of Cholestrol Synthesis is:
Nucleus Endoplasmic reticulum
Golgibody Mitochondria
(viii) In DNA replication, the helix is unwound by which enzyme?
Topoismerase Primase
DNA polymerase Helicase
2. Write an essay on Parthenogenesis.
3. Describe diffferent types of Mutation.
4. Describe linkage and crossing over.
5. Describe Mendal's Law of inheritance.
6. Give an account of Fertilization.
7. Give an account of active transport.
8. Give an account of structure of RNA and its function.
9. Give an account of DNA replication.
10. Write short notes on any Two of the following
Lethal mutation Genotype
Phenotype Translation