List-I | List-II |
A. ETS Complex I | I. NADH Dehydrogenase |
B. ETS Complex II | IV. Succinate Dehydrogenase |
C. ETS Complex III | II. Cytochrome bc1 |
D. ETS Complex IV | III. Cytochrome C oxidase |
List-I | List-II |
A. Abscisic acid | I. Promotes female flowers in cucumber |
B. Ethylene | II. Helps seeds to withstand desiccation |
C. Gibberellin | III. Helps in nutrient mobilisation |
D. Cytokinin | IV. Promotes bolting in beet, cabbage etc |
List - I | List – II | ||
A. | Residual Volume | i. | Maximum volume of air that can be breathed in after forced expiration |
B. | Vital Capacity | ii. | Volume of air inspired or expired during normal respiration |
C. | Expiratory Capacity | iii. | Volume of air remaining in lungs after forcible expiration |
D. | Tidal Volume | iv. | Total volume of air expired after normal inspiration |
List I | List II | ||
---|---|---|---|
A | Robert May | I | Species-Area relationship |
B | Alexander von Humboldt | II | Long term ecosystem experiment using out door plots |
C | Paul Ehrlich | III | Global species diversity at about 7 million |
D | David Tilman | IV | Rivet popper hypothesis |
Many individuals believe that American biologist - "James Watson" and English physicist - “Francis Crick” discovered DNA in the 1950s. Actually, this is not the case. Preferably, DNA was first recognized in the late 1860s by Swiss chemist - “Friedrich Miescher”.
Read More: Structure of DNA
DNA is self-replicating material that exists in every living organism. In easiest terms, it is a carrier of all genetic information. It contains the instructions required for organisms to develop, grow, survive, and reproduce. It’s one of the longest molecules that contain our genetic “code,” or recipe. This recipe is the initial point for our development, but DNA’s interaction with outside impacts such as our lifestyle, environment, and nutrition ultimately forms human beings.
DNA is a composition of molecules known as nucleotides. Each nucleotide comprises a sugar and phosphate group, also nitrogen bases. These nitrogen bases are further tumbledown into four types, including: