61 Based on equal probability of any base occurrence in a genome, what should be the minimum length of a probe to bind specifically on a single locus on a […]
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DBT BET JRF 2020 Previous Year Questions and Video solutions
What Is Endoreduplication? Understanding Recurrent DNA Replication Without Cell Division
What is Endoreduplication? 1. replication of DNA in the nuclei and endocytosis of one copy to another organelle 2. mobilization of DNA into ER and replication of DNA in the […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Nickel-NTA Affinity Chromatography and His-Tag Protein Purification
24. A scientist chose Nickel – NTA affinity chromatography to purify a recombinant protein. Which one of the following tag was present in his recombinant protein? (a) Flag, (b) Glutathione-S-transferase, […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Inheritance of Flower Color: Understanding Incomplete Dominance Through a Genetic Cross
60. A plant with orange flowers was self-pollinated. In the F1 progeny, we obtained 38 plants producing red flowers, 80 plants producing orange flowers and 41 plants producing yellow flowers. […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Forward and Reverse Genetics in Immune Function Studies
23. A geneticist interested in immune function induces random mutations in a number ofspecific genes in mice and then determines which of the resulting mutant mice have impaired immune function. […]
DBT BET JRF 2019 Previous Year Questions and Video solution
Phloem vs Xylem Transport: Key Differences and Mechanisms in Plants
The combination of numbered terms that completes all of the following statement is: i. Transport through the phloem is __1___ while transport through Xylem is __2__ ii. Loading of sugar […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Understanding Gene Relationships: Paralogs and Gene Duplication Events
22. Genes that are related through gene duplication events are: (a) Analogs, (b) Homologs, (c) Orthologs, (d) Paralogs Introduction Gene duplication is a fundamental mechanism in molecular evolution. It plays […]
DBT BET JRF 2020 Previous Year Questions and Video solutions
Tay-Sachs Disease: A Genetic Disorder That Does Not Exhibit Sex-Linked Inheritance
Which of the following disorders does not show sex-linked inheritance? 1. Haemophilia B 2. Duchenne muscular dystrophy 3. Haemophilia A 4. Tay-Sachs disease What Is Tay-Sachs Disease? Tay-Sachs disease is […]
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Mosaic Pattern of Sweat Gland Development in Females with X-Linked Anhidrotic Dysplasia
Anhidrotic dysplasia is a condition in which development of sweat glands is prevented. It is caused by mutation present on the X chromosome. A heterozygous female for this allele will: […]
DBT BET JRF 2021 Previous Year Questions and Video solution
Validating Protein Secondary Structure: The Role of Ramachandran Plot
21. Which one of the following is used to validate the secondary structure of proteins? (a) Dot plot, (b) Neural network, (c) Ramachandran plot, (d) Sigma plot Introduction Proteins are […]
