Tag: DBT JRF PYQ 2020

Which part of a plant would be most suitable for raising virus-free plants for micropropagation? 1. node 2. bark 3. vascular tissue 4. apical meristem Introduction to Micropropagation Micropropagation is […]

‘Golden rice’ is genetically engineered by altering the biosynthetic pathway for the production of 1. carotenoids 2. chlorophylls 3. flavonoids 4. Phycocyanins   What is Golden Rice? Golden rice is […]

Which of the following represents a quantitative measure of the structural similarity between two proteins? 1. revised mode square deviation 2. root mean square distance 3. standard deviation 4. root […]

A shuttle vector is a vector that 1. can replicate in the cells of more than one organism 2. helps in transporting proteins from one cell to the adjacent cell […]

The first drug approved by FDA of USA, that was produced through genetic engineering was 1. Somatotropin 2. insulin 3. penicillin 4. interferon  Introduction: A Biotech Breakthrough The first FDA-approved […]

If a nonsense mutation is present in the Lacz gene of the lac operon, the mRNA of βgalactosidase would 1. be expressed in response to binding of the lac repressor […]

The following cellular process involves formation of double membrane vesicles that engulf and degrade the cellular organelles and macromolecules 1. Necrosis 2. Autophagy 3. Macro pinocytosis 4. Apoptosis  What Is […]

Which one of the following involves RNA Editing? 1. deletion, insertion or chemical modification of nucleotides that are present in the mRNA 2. joining of exons from one pre-mRNA molecule […]

Proteins are commonly purified by ion exchange chromatography (IEC) as a final step. Which of the following statements is NOT true? 1. above the isoelectric point, the proteins bind to […]

The mature anther wall comprises an epidermis followed by a layer of radially elongated cells with fibrous bands of callose called endothecium whose function is 1. mechanical 2. protection 3. […]