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Given below are two statements:
Statement I: Parenchyma is living but collenchyma is dead tissue.
Statement II: Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of
angiosperms.
In the light of the above statements, choose the correct answer from the options given below:
List of endangered species was released by:
The DNA present in chloroplast is:
Which of the following are fused in somatic hybridization involving two varieties of plants?
Spraying sugarcane crop with which of the following plant growth regulators, increases the length of stem, thus, increasing the yield?
Match List I with List II:
List-I | List-II | ||
---|---|---|---|
A. | Frederick Griffith | I. | Genetic code |
B. | Francois Jacob & Jacque Monod | II. | Semi-conservative mode of DNA replication |
C. | Har Gobind Khorana | III. | Transformation |
D. | Meselson & Stahl | IV. | Lac operon |
Given below are two statements:
Statement I: In C3 plants, some O2 binds to RuBisCO, hence CO2 fixation is decreased.
Statement II: In C4 plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements, choose the correct answer from the options given below:
Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate:
Match List I with List II:
List-I | List-II | ||
---|---|---|---|
A. | Citric acid cycle | I. | Cytoplasm |
B. | Glycolysis | II. | Mitochondrial matrix |
C. | Electron transport system | III. | Intermembrane space of mitochondria |
D. | Proton gradient | IV. | Inner mitochondrial membrane |
Which of the following statement is correct regarding the process of replication in E.coli?
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