MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Graduate Aptitude Test (GATE) knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Hydra reproduces by: |
| A. | Budding |
| B. | Binary fission |
| C. | Cloning |
| D. | In vitro fertilization |
| Answer» B. Binary fission | |
| 2. |
Pesticide treadmill refers to: |
| A. | Increase in concentration of pesticides in the body of the organism |
| B. | Increase in doses of pesticides to prevent the resurgence of pests that were being controlled |
| C. | Development of resistance in plant due to excessive and prolonged use of pesticide |
| D. | Production of more synthetic pesticides |
| Answer» C. Development of resistance in plant due to excessive and prolonged use of pesticide | |
| 3. |
Protandry is the situation when |
| A. | anthers and stigma mature at the same time |
| B. | anthers mature later than the stigma of the same flower |
| C. | anthers mature earlier than the stigma of the same flower |
| D. | anthers of the flower pollinate the stigma of the same flower |
| Answer» D. anthers of the flower pollinate the stigma of the same flower | |
| 4. |
A flower is brightly coloured, scented and secrete nectar. It is most probably |
| A. | pollinated by insects |
| B. | sterile |
| C. | pollinated by wind |
| D. | an insectivorous plant |
| Answer» B. sterile | |
| 5. |
|
| A. | androecium and gynoecium are similar |
| B. | calyx and corolla are similar |
| C. | androecium and calyx are similar |
| D. | gynoecium and corolla are similar |
| Answer» C. androecium and calyx are similar | |
| 6. |
Flower is a modified shoot because |
| A. | in some flowers thalamus become elongated and shows distinct nodes and internodes |
| B. | flowers aggregate to form inflorescence |
| C. | epicalyx is present in some flowers |
| D. | essential organs are present in some flowers |
| Answer» B. flowers aggregate to form inflorescence | |
| 7. |
Third whorl in flower is of |
| A. | petal |
| B. | sepal |
| C. | stamen |
| D. | pistil |
| Answer» D. pistil | |
| 8. |
Plants which flower only once in their life is |
| A. | Polycarpic |
| B. | monocarpic |
| C. | cleistocarpic |
| D. | pericarpic |
| Answer» C. cleistocarpic | |
| 9. |
Which of the following is not a single flower |
| A. | China rose |
| B. | Petunia |
| C. | Sun flower |
| D. | holy hope |
| Answer» D. holy hope | |
| 10. |
A bisexual flowers which never open in its life span is called |
| A. | homogamous |
| B. | heterogamous |
| C. | polygamous |
| D. | cleistogamous |
| Answer» E. | |
| 11. |
A flower with essential and non-essential whorls |
| A. | incomplete |
| B. | irregular |
| C. | sessile |
| D. | complete |
| Answer» C. sessile | |
| 12. |
A characteristic of angiosperm is |
| A. | root |
| B. | seed |
| C. | flower |
| D. | all of the above |
| Answer» D. all of the above | |