Gynogenesis is a process of development of haploid plants
Select an option to see the answer and solution.
Biotechnology Engineering · all questionsPlant Biotechnology
Plant Biotechnology
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
57
Questions
1/3
Page
Pick an option on a question to see the right answer and solution.
Parthenogenetic embryos in plants are those which are formed by
Select an option to see the answer and solution.
Large scale clonal propagation practically means raising a population of plantlets from
Select an option to see the answer and solution.
Determine the correctness or otherwise of the following Assertion (A) and Reason (R).
Assertion: In direct somatic embryogenesis, embryos are developed without going through callus formation.
Reason: This is possible due to the presence of pre embryonically determined cells.
Assertion: In direct somatic embryogenesis, embryos are developed without going through callus formation.
Reason: This is possible due to the presence of pre embryonically determined cells.
Select an option to see the answer and solution.
The following are useful to introduce genes into crop plants except
Select an option to see the answer and solution.
Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: The enzymatic degradation of cell wall to obtain single cell called protoplast has helped immensely in developing somatic cell genetics in plants.
Reason: In plants or animals, fusion of two cells must occur through the plasma membrane.
Assertion: The enzymatic degradation of cell wall to obtain single cell called protoplast has helped immensely in developing somatic cell genetics in plants.
Reason: In plants or animals, fusion of two cells must occur through the plasma membrane.
Select an option to see the answer and solution.
The Bt toxin gene from Bacillus thuringiensis used to generate genetically modified crops is
Select an option to see the answer and solution.
Embryo rescue is a useful technique to
Select an option to see the answer and solution.
Which one of the following plant secondary metabolites is a natural insecticide?
Select an option to see the answer and solution.
Some living cells (e.g., plant cell) have the capacity to give rise to whole organism. The term used to describe this property is
Select an option to see the answer and solution.
Plant breeders have an advantage over animal breeders in reproducing a desired type offspring because the plant breeders can employ
Select an option to see the answer and solution.
For protoplast fusion to be successful in plant cells
Select an option to see the answer and solution.
Meristems escape virus invasion because
Select an option to see the answer and solution.
Which of the following would result in somaclonal variation in micropropagated plants?
P. Propagation by axillary branching in the absence of plant growth regulators.
Q. Cell suspension maintained for five years before induction of somatic embryogenesis.
R. Callus induction using 20 μM 2, 4-dichlorophenoxyacetic acid followed by shoot organogenesis.
S. Shoot organogenesis from an explant in the absence of an intermediate callus phase.
P. Propagation by axillary branching in the absence of plant growth regulators.
Q. Cell suspension maintained for five years before induction of somatic embryogenesis.
R. Callus induction using 20 μM 2, 4-dichlorophenoxyacetic acid followed by shoot organogenesis.
S. Shoot organogenesis from an explant in the absence of an intermediate callus phase.
Select an option to see the answer and solution.
Somatic embryo from cotyledon explant would develop in the following sequential stages
Select an option to see the answer and solution.
Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: It is possible to regenerate a whole plant from a single plant cell.
Reason: It is easier to introduce transgenes into plants than animals.
Assertion: It is possible to regenerate a whole plant from a single plant cell.
Reason: It is easier to introduce transgenes into plants than animals.
Select an option to see the answer and solution.
Which one of the following is not a protoplast fusion inducing agent?
Select an option to see the answer and solution.
Match the plant hormones in Group I with functions in Group II.
| Group I | Group II |
| P. Gibberellic acid | 1. Seed and bud dormancy |
| Q. Zeatin | 2. Fruit ripening |
| R. Ethylene | 3. Delaying leaf senescence |
| S. Abscisic acid | 4. Regulation of plant height |
Select an option to see the answer and solution.
Enhanced axillary branching for multiple shoot production is promoted by
Select an option to see the answer and solution.
Shoot organogenesis by tissue culture results into
Select an option to see the answer and solution.