Tag: DBT JRF PYQ 2020

Genes related through vertical descent from a common ancestral gene are called 1. heterologous 2. xenologous 3. paralogous 4. orthologous Detailed Explanation:Correct Answer:4. Orthologous What Are Orthologous Genes? Orthologous genes […]

Identify the incorrect pair 1. DNase I : Cleaves only double stranded DNA 2. Alkaline Phosphatase : Removes 5′ phosphate from the DNA 3. RNA polymerase: Transcription 4. DNA Polymerase […]

A humanised antibody is one in which the 1.antibody heavy chain is from human and light chain is from mouse 2. antibody heavy and light chains are from human 3.complementarity-determining […]

DNA glycosylases are DNA repair enzymes involved in 1. base excision repair 2. negative supercoiling of DNA 3. SOS response 4. DNA replication Detailed Explanation:Correct Answer: Base excision repair Introduction […]

Which one of the following approaches is generally not used for identifying an SNP? 1. protein sequencing 2. molecular beacons 3. microarrays 4. RNA Seq Detailed Explanation:Correct Answer: Protein sequencing […]

In Transmission Electron Microscope (TEM), a beam of electrons interact with the specimen to form image as 1. reflection 2. diffraction 3. shadow 4. scattering   Detailed Explanation:Correct Answer:4. Scattering […]

Which of the following is NOT used for producing vitamins industrially? 1. Ashbyagossypii 2. Corynebacterium sp. 3. Propionibacterium freudenreichii 4. Pseudomonas aeruginosa   Detailed Explanation:Correct Answer:4. Pseudomonas aeruginosa Microorganisms in […]

The specific energy source for the reaction ADP + phosphate → ATP by the enzyme ATP synthetase (CF1 Coupling Factor) in thylakoid membranes is 1. higher concentration of H+ inside […]

Cellulose is a linear polymer of glucose with 1. beta-1,4-glycosidic linkage 2. alpha1,4-glycosidic linkage 3. beta-1,3-glycosidic linkage 4. alpha-1,3-glycosidic linkage Detailed Explanation:Correct Answer: beta-1,4-glycosidic linkage What is Cellulose?Cellulose is a […]

A set of closely linked genetic markers present on a single chromosome, which are not easilyseparable by recombination and tend to be inherited together are termed as 1. haplotypes 2 […]