Mohan Lal Sukhadia University Model Question Paper MSc Biotechnology : www.mlsu.ac.in

[hemalathaijt]

Document Described : Mohan Lal Sukhadia University - Model Question Paper
M. Sc. Biotechnology (Semester-I)
Paper-III: Cytology and Genetics
Max. Marks: 75

Part- A
There are 45 multiple choice questions of one mark each. The candidates are required to attempt all the questions.

Part – B
There are 05 long answer type questions carrying 10 marks each. The candidates are required to answer any 03 questions in approximate 300-400 words.

Model Question List : http://mlsu.ac.in/model/M.Sc%20%28Sem%29.html
Model Question Paper : http://mlsu.ac.in/model/Annual%20PDF...B.TECHPIII.pdf

PART - A

1. A single pass transmembrane protein :
(A) Spectrin (B) Ankryn
(C) Glycophorin (D) Band 3

2. Lipid present in the prokaryotic cell membrane, but lacking in eukaryotes :
(A) Cardiolipin (B) Cholesterol
(C) Phosphatidyl chlorine (D) Phosphatidyl ethanolamine

3. Folding of secretary proteins occurs in
(A) Cytoplasm (B) Golgi complex
(C) Endoplasmic reticulum (D) Secretary vesicles

4. When cells are disrupted then endoplasmic reticulum breaks up into :
(A) Endosomes (B) Microsomes
(C) Phagosomes (D) Pinosomes

5. What is that critical concentration below this value a solution of F:actin will depolymerize :
(A) 1 µm (B) 10 µm
(C) 5 µm (D) 0.1 µm

6. A plus end directed microtubule motor protein :
(A) Kinesin (B) Dynein
(C) Lamin (D) tau protein

7. Mitochondrial genetic codon UGA codes for :
(A) Cysteine (B) Termination
(C) Tryptophan (D) Methionine

8. Which protein complex in thylakoid membrane function in the synthesis of NADPH :
(A) PS I (B) PS II
(C) Cyt bf (D) ATP synthase

9. Proteins destined for incorporation into lysosomes are recognized and modified in Golgi complex by the addition of :
(A) Phosphate group to mannose (B) Mannose
(C) N:acetyl glucosamine (D) Sialic acid

10. Mammalian cells contain four different lamins designated as :
(A) A1, A2, B & C (B) A, B, C1 & C2
(C) A, B1, B2 & D (D) A1, A2, B1 & B2

11. In unstimulated cells, NF:k B is found as an inactive complex with inhibitory protein in cytoplasm :
(A) k BI (B) I kB
(C) B kI (D) IBk

12. 45 S ribosomal precursor RNA has :
(A) 5S, 18S & 28S r RNA (B) 5S, 5.8S & 18S r RNA
(C) 5S, 5.8S & 28S r RNA (D) 5.8s, 18s & 28s r RNA

13. Which histone protein is involved in higher order folding of chromatin :
(A) H2A (B) H1
(C) H2B (D) H3

14. The haploid DNA content in an individual is described as its :
(A) C:value (B) C:value paradox
(C) Genomic DNA (D) B:DNA

15. The substantial variation in the nuclear DNA content between closely related species which cannot be easily explained :
(A) C:value (B) C:value paradox
(C) Cryptic gene (D) Promiscuous DNA