As the two strands of the double helix are separated, the positive supercoiling interferes with the further unwinding of DNA. Which of the following enzyme makes a break in a strand of DNA to release the supercoiling and facilitate the replication to occur?

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#Question id: 10891

#SCPH28 | Zoology

In a lake ecosystem with three trophic levels - Phytoplankton (P), Zooplankton (Z) and Carnivore (C) is control by bottom-up effects, which of the following observation is incorrect?

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#Question id: 1592

#SCPH05 I Biotechnology

Which of these molecules is incorrectly paired with a source?

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#Question id: 12938

#SCPH28 | Zoology

What is the main advantage of using Yeast Artificial Chromosome based vector over other vectors?

1. It has ability to clone very large fragments of DNA.

2. YAC vectors do not contain origin of replication sites 

3. It has insert  range up to 2000 kb.

4. It help in genome mapping and sequencing projects.

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#Question id: 8948

#SCPH06 I Botany

What distinguishes a coelomate animal from a pseudocoelomate animal is that coelomates

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#Question id: 359

#I Life Science/ Life Sciences Group – I-V

What is the concentration of OH− in a solution with an H+ concentration of 1.3 × 10^−4 M?