MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Pollen tube is attracted to the _____ end of the embryo sac. |
| A. | micropylar |
| B. | hilum |
| C. | synergid |
| D. | generative |
| Answer» B. hilum | |
| 2. |
Second fertilization is called ________ |
| A. | syngamy |
| B. | apomixis |
| C. | senescence |
| D. | vegetative fertilization |
| Answer» E. | |
| 3. |
Generative fertilization is also called _____ |
| A. | apomixis |
| B. | syngamy |
| C. | vegetative fertilization |
| D. | senescence |
| Answer» C. vegetative fertilization | |
| 4. |
The growth of the pollen tube is directed by ______ |
| A. | obturator |
| B. | meristem |
| C. | parenchyma |
| D. | schlerenchyma |
| Answer» B. meristem | |
| 5. |
Which 2 scientists stated that endosperms were for reduction of female gametophyte? |
| A. | Chargaff and Franklin |
| B. | Nirenburg and Khoranna |
| C. | Watson and Crick |
| D. | Brink and Cooper |
| Answer» E. | |
| 6. |
Endosperm is formed only when it is needed. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What initiates the formation of endosperms? |
| A. | Fertilization |
| B. | Triple fusion |
| C. | Fusion |
| D. | Double fusion |
| Answer» C. Fusion | |
| 8. |
The further growth of embryo takes place when the ______ has been formed. |
| A. | pollen |
| B. | ovule |
| C. | zygote |
| D. | pistil |
| Answer» D. pistil | |
| 9. |
In _______, female gametophytes stop their growth at 8 nucleate stages. |
| A. | cleistogamous |
| B. | chasmogamous |
| C. | gymnosperms |
| D. | angiosperms |
| Answer» E. | |
| 10. |
Double fertilization is seen in _______ |
| A. | angiosperms |
| B. | gymnosperms |
| C. | Malaceae |
| D. | Viola |
| Answer» B. gymnosperms | |