1
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

Which of the following plasmid vectors can be used for cloning of a gene, with restriction enzymes BamHI and EcoRI, and ampicillin-containing nutrient agar for selection? [Ori - origin of replication; $\mathrm{Amp}^R$ - gene for ampicillin resistance]

A
IAT (IISER) 2024 Biology - Biotechnology: Principles and Processes Question 1 English Option 1
B
IAT (IISER) 2024 Biology - Biotechnology: Principles and Processes Question 1 English Option 2
C
IAT (IISER) 2024 Biology - Biotechnology: Principles and Processes Question 1 English Option 3
D
IAT (IISER) 2024 Biology - Biotechnology: Principles and Processes Question 1 English Option 4
2
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

Polymerase chain reaction (PCR) is used to amplify a gene of interest (GOI). If, after 30 cycles of PCR, 1 billion copies of GOI are produced, approximately how many copies of GOI were present at the end of the $20^{\text {th }}$ cycle?

A
10 million
B
0.66 billion
C
1 million
D
0.1 billion
3
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is correct?
A
Hemichordata is not a chordate sub-phylum because it has a water vascular system.
B
Hemichordata is a chordate sub-phylum with a proto-notochord called stomochord.
C
Hemichordata is a chordate sub-phylum with a proper notochord and gill slits.
D
Hemichordata is not a chordate sub-phylum, with a proto-notochord called stomochord.
4
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

Which of the following statements is correct about the oxygen $\left(\mathrm{O}_2\right)$ dissociation curves A and C relative to curve B ?

IAT (IISER) 2024 Biology - Breathing and Exchange of Gases Question 1 English
A
Curve C represents favourable $\mathrm{O}_2$ association with haemoglobin at low $\mathrm{pCO}_2$.
B
Curve A represents favourable $\mathrm{O}_2$ association with haemoglobin at low pH .
C
Curve A represents favourable $\mathrm{O}_2$ association with haemoglobin at low pH .
D
Curve C represents favourable $\mathrm{O}_2$ association with haemoglobin at high $\mathrm{pO}_2$.
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