Biology questions
20584 published questions with worked solutions.
- These are regarded as major causes of biodiversity loss: A. Over exploitation B. Co-extinction C. Mutation D. Habitat loss and...
- In a plant, black seed color (BB/Bb) is dominant over white seed color (bb). In order to find out the genotype of the black seed...
- A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down...
- Identify the set of correct statements: A. The flowers of *Vallisneria* are colourful and produce nectar. B. The flowers of...
- Bulliform cells are responsible for
- Match List I with List II List I: (A) *Rhizopus* (B) *Ustilago* (C) *Puccinia* (D) *Agaricus* List II: (I) Mushroom (II) Smut...
- Given below are two statements : Statement I : Chromosomes become gradually visible under light microscope during leptotene...
- Match List I with List II List I: (A) *Clostridium butylicum* (B) *Saccharomyces cerevisiae* (C) *Trichoderma polysporum* (D)...
- Given below are two statements: Statement I : Parenchyma is living but collenchyma is dead tissue. Statement II : Gymnosperms...
- The equation of Verhulst-Pearl logistic growth is dN dt =rN [ K-N K ]. From this equation, K indicates:
- How many molecules of ATP and NADPH are required for every molecule of CO_2 fixed in the Calvin cycle?
- Which of the following are required for the dark reaction of photosynthesis? A. Light B. Chlorophyll C. CO_2 D. ATP E. NADPH...
- What is the fate of a piece of DNA carrying only gene of interest which is transferred into an alien organism? A. The piece of...
- Formation of interfascicular cambium from fully developed parenchyma cells is an example for
- Which of the following is an example of actinomorphic flower?
- The capacity to generate a whole plant from any cell of the plant is called:
- Which one of the following can be explained on the basis of Mendel's Law of Dominance? A. Out of one pair of factors one is...
- Spindle fibers attach to kinetochores of chromosomes during
- Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of:
- Hind II always cuts DNA molecules at a particular point called recognition sequence and it consists of:
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