Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Bio-Technology (Biotechnology Engineering) 2020 March 4th Sem BTBT 404 Cell & Molecular Biology Previous Question Paper
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(BT) (2012 to 2017) (Sem.?4)
CELL & MOLECULAR BIOLOGY
Subject Code : BTBT-404
M.Code : 55087
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Answer briefly :
a) Explain the different functions performed by the smooth endoplasmic reticulum.
b) How does CDKs and CDKIs play a role in cell cycle?
c) What do you mean by ?Semi conservative mode of replication??
d) Describe the structure of an Eukaryotic chromosome?
e) What are the differences between RNA polymerases in prokaryotes and eukaryotes?
f) Name any Inhibitor of translation and its mode of action.
g) What is the function of a tumor suppressor gen?
h) Write down the process of RNA capping.
i) Explain the role of cis-regulatory sequences.
j) What are the different types of components of the cytoskeleton?
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1 | M - 5 5 0 8 7 (S2)-2163
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(BT) (2012 to 2017) (Sem.?4)
CELL & MOLECULAR BIOLOGY
Subject Code : BTBT-404
M.Code : 55087
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
Q1. Answer briefly :
a) Explain the different functions performed by the smooth endoplasmic reticulum.
b) How does CDKs and CDKIs play a role in cell cycle?
c) What do you mean by ?Semi conservative mode of replication??
d) Describe the structure of an Eukaryotic chromosome?
e) What are the differences between RNA polymerases in prokaryotes and eukaryotes?
f) Name any Inhibitor of translation and its mode of action.
g) What is the function of a tumor suppressor gen?
h) Write down the process of RNA capping.
i) Explain the role of cis-regulatory sequences.
j) What are the different types of components of the cytoskeleton?
2 | M - 5 5 0 8 7 (S2)-2163
SECTION-B
Q2. Explain the structural organization of the mitochondria and also describe the process of
oxidative phosphorylation.
Q3. Explain and list the different various steps taking place during mitosis of a cell. Also
describe the significance of mitosis.
Q4. Explain the mechanism of Base Excision repair (BER) pathway taking place during DNA
repair.
Q5. Elucidate and explain the different Post transcriptional modifications.
Q6. Write about the epigenetic modifications taking place during regulation of gene.
SECTION-C
Q7. Briefly describe the process of DNA Replication in E.coli Also explain the different
enzymes that are involved in the above process.
Q8. Write explanatory notes on :
a) Function of signal peptide and transport
b) The components found in the extracellular matrix (ECM)
Q9. Briefly describe the process of regulation of gene expression in Lac Operon.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 21 March 2020