Author: admin

Q.14 Active transport is required for 1. positively charged molecules 2. neutral molecules 3. negatively charged molecules 4. chloride ions Active transport moves molecules or ions against their concentration gradient […]

Q.13 Ramachandran plots are used to analyse 1. primary structure of proteins 2. secondary structure of proteins 3. tertiary structure of proteins 4. quaternary structure of proteins Ramachandran plots analyze […]

Q.12 In eukaryotes, 5S rRNA is synthesized by 1. RNA polymerase I 2. RNA polymerase II 3. RNA polymerase III 4. RNA polymerase (sigma) subunit Eukaryotes 5S rRNA: Synthesized by […]

Q.11 Given below are two statements: Statement I :Speciation can occur rapidly or slowly. Statement II: Speciation can take place with geographic separation only. In the light of the above […]

Q.10 An interaction where one species is harmed and the other is unaffected is called 1. commensalism 2. facilitation 3. parasitism 4. amensalism Species Interaction: One Harmed, Other Unaffected is […]

Q.9 The mimicry in which a palatable species mimics a toxic species is called 1. character displacement mimicry 2. Batesian mimicry 3. Mullerian mimicry 4. Gregorian mimicry Batesian Mimicry: Palatable […]

Q.8 Evolution of drug-resistant bacteria is an example of 1. genetic drift 2. natural selection 3. bottleneck effect 4. founder effect Drug-Resistant Bacteria Evolution: Natural Selection Example Antibiotic overuse drives […]

Q.7 The method used to analyse larger DNA fragments (> 1 Mbp) is 1. polyacrylamide gel electrophoresis 2. Isoelectric focusing 3. agarose gel electrophoresis 4. pulsed-field gel electrophoresis DNA Fragment […]

Q.6 Given below are two statements: Statement I: On morphological grounds, scientists speculated that mitochondria and chloroplasts might be intracellular parasites that has established symbiotic relationship with the eukaryotic cells. […]

Q.5 Hypersensitivity involved in blood transfusion and erythroblastosis fetalis is 1. Type I hypersensitivity 2. Type II hypersensitivity 3. Type III hypersensitivity 4. Type IV hypersensitivity Here’s a comprehensive, SEO-friendly […]