According to the modern theory of stomatal opening proposed by Levitt, the pH of guard cells can rise due to A. CO2 assimilation by guard cells only B. Active efflux of H+ ions by guard cells C. Conversion of starch into PEP D. Active uptake of K+ in guard cells
1 Answer
An ecosystem undergoes a sudden drastic change that now favors organisms with an extreme phenotype. Which one of the following is true for such an ecosystem? A. Genetic drift B. Founder effect C. Artificial selection D. Disruptive selection E. Directional selection
1 Answer
Abnormal/anomalous secondary growth occurs in (a) Dracaena (b) Ginger (c) Wheat (d) Sunflower
1 Answer
According to five kingdom system blue-green algae belong to: a) Metaphyta b) Monera c) Protista d) Algae
1 Answer
Adenosine monophosphate is a A) Nucleoside of DNA B) Nucleotide of DNA C) Nucleoside of RNA D) Nucleotide of RNA
1 Answer
Active transport of ions by a cell requires A) High temperature B) Low temperature C) Alkaline pH D) ATP
1 Answer
According to Susruta Samhita, Virudha consisted of A. Flowering plants. B. Shrubs. C. Osadhi. D. Jangama.
1 Answer
A bacterial cell undergoes binary fission every twenty minutes. Starting with a single bacterium, how many bacteria will form after 3 hours? a. 128 b. 256 c. 512 d. 1024
1 Answer
Advantage of cleistogamy is A. Higher genetic variability. B. More vigorous offspring. C. No dependence on pollinators. D. Vivipary
1 Answer
According to the IUCN Red List, what is the status of Red Panda (Ailurus fulgens)? (a) Critically endangered (b) Endangered species (c) Vulnerable species (d) Extinct species
1 Answer
