Tag: GATE Life Science Previous Year Papers with Solutions

Q.52 Which one of the following is a free-living photosynthetic nitrogen fixer?(A) Frankia (B) Clostridium (C) Rhodospirillum (D) Rhizobium Rhodospirillum is the free-living photosynthetic nitrogen fixer among the options. Question Breakdown […]

Q.51 Which one of the following performs normal C3 photosynthesis when water is available, butswitches to crassulacean acid metabolism (CAM) during salt or drought stress?(A) Mesembryanthemum crystallinum (B) Cynodon dactylon(C) Eleucine […]

Q.50 The number of nucleosomes present in a 30 nm solenoid structure of a chromatin is (A) 2 (B) 4 (C) 6 (D) 8 30 nm Solenoid Chromatin Nucleosomes Chromatin […]

Q.49 Cytoplasmic male sterility via the chloroplast genome can be induced by the expression of Pha A gene encoding (A) β-Ketothiolase (B) Acetoacetyl CoA carboxylase (C) Acetoacetyl CoA reductase (D) […]

Q.48 Parenchyma cells associated with sieve tube members are called (A) Albuminous cells (B) Companion cells (C) Bulliform cells (D) Subsidiary cells Parenchyma Cells Sieve Tube Members In plant anatomy, parenchyma […]

Q.47 An estimate of phylogenetic relationships among the taxa is commonly represented in the form of a (A) Cladogram (B) Idiogram (C) Phenogram (D) Dendrogram Here’s a SEO-optimized article on […]

Q.46 The swollen base of a petiole is known as (A) Ligule (B) Hastule (C) Pulvinus (D) Stipule Swollen Base of Petiole: Pulvinus in Plant Anatomy The swollen base of […]

Q.45 The figure below is a schematic of a linear double stranded DNA containing the indicated restriction sites. The DNA was completely digested with PvuII and EcoRI. The products were […]

Q.44 The kinetics of an enzyme in the presence (+I) or absence (−I) of a reversible inhibitor is described in the following graph. If concentration of the reversible inhibitor in the […]

Q.43 Match the antibiotics in Group I with their mechanism of action in Group II Group I Group II P. Tetracyclines 1. Inhibits bacterial protein synthesis by blocking peptidyl transfer Q. […]