Related InterviewSolutions

• Assertion : Pili are nonmotile appendages of bacteria. Reason : Pili take part in conjugation.A. If both assertion and reason are true amnd reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.
• Arrangement of microtubules in a flagelium and a centriole is respectivelyA. 9 + 2 and 9 + 1B. 9 + 1 and 9 + 0C. 9 + 0 and 9 + 7D. 9 + 2 and 9 + 0
• The movement of cilia and flagella is due to the presence ofA. radial spokesB. central sheathC. singlet microtubulesD. dyneins.
• According top most recent studies, each chromosome consider ofA. single double helical DNA which is higly coiled and foldedB. variable number of DNA helices, depending upon the length of chromosomeC. many small DNA heloces, which are joined by peptide linkagesD. small DNA helices, wrapped around each other like a rope.
• Refer to the given figure. Select the option which correctly identifies (i-iii).A. `{:("Metacentric","Submetacentric","Acrocentric"),(" (i)"," (ii)"," (iii)"):}`B. `{:("Metacentric","Submetacentric","Acrocentric"),(" (i)"," (iii)"," (ii)"):}`C. `{:("Metacentric","Submetacentric","Acrocentric"),(" (ii)"," (i)"," (iii)"):}`D. `{:("Metacentric","Submetacentric","Acrocentric"),(" (ii)"," (iii)"," (i)"):}`
• Integral cell membrane proteinsA. are partially embedded in lipid layersB. are completely embedded in lipid layersC. show leteral but not vertical movements within bilayer of lipidD. All of these
• A cell, which is very active in the synthesis and secretion of proteins, would be expected to haveA. equal amount of RER and SERB. more SER than RERC. more than SERD. more Golgi bodies and no ER.
• Assertion : Peripheral proteins are partially or totally buriend in the membrane. Reason : Integral proteins lie on the surface of membrane.A. If both assertion and reason are true amnd reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.
• Assertion : the quasifluid nature of lipid enables lateral movement pof proteins within the overall bilayer. Reason : This ability to move within the membrane is called fluidity and is important for cell growth.A. If both assertion and reason are true amnd reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.
• Assertion : Lysosmes are capable of digesting carbohydrates, proteins, lipids and nucleic acids. Reason : Lysosomes are rich in hydrolytic enzuymes like lipases, proteases and carbohydrases.A. If both assertion and reason are true amnd reason is the correct explanation of assertion.B. If both assertion and reason are true but reason is not the correct explanation of assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.