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295 questions found · practise this subject as a set
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| # | Question | Subject and topic | Difficulty |
|---|---|---|---|
| 1 | Which layer of the microsporangium wall nourishes the developing pollen grains? | Biology/Biological Studies/Biotechnology/Biochemistry Flower structure and gametophytes |
Easy |
| 2 | The exine of a pollen grain is mainly made of which substance? | Biology/Biological Studies/Biotechnology/Biochemistry Flower structure and gametophytes |
Easy |
| 3 | How many mitotic divisions of the functional megaspore nucleus are needed to form a typical 8-nucleate embryo… | Biology/Biological Studies/Biotechnology/Biochemistry Flower structure and gametophytes |
Medium |
| 4 | In a typical angiosperm embryo sac, which cells lie at the micropylar end along with the egg? | Biology/Biological Studies/Biotechnology/Biochemistry Flower structure and gametophytes |
Medium |
| 5 | If the nucellus cell of a plant has 24 chromosomes, how many chromosomes will be present in the egg cell and … | Biology/Biological Studies/Biotechnology/Biochemistry Flower structure and gametophytes |
Hard |
| 6 | Transfer of pollen from the anther to the stigma of another flower on the same plant is called | Biology/Biological Studies/Biotechnology/Biochemistry Pollination |
Easy |
| 7 | Which plant shows water pollination? | Biology/Biological Studies/Biotechnology/Biochemistry Pollination |
Easy |
| 8 | A plant species bears only male flowers on some individuals and only female flowers on others. Which forms of… | Biology/Biological Studies/Biotechnology/Biochemistry Pollination |
Medium |
| 9 | Which feature is typical of a wind-pollinated flower? | Biology/Biological Studies/Biotechnology/Biochemistry Pollination |
Medium |
| 10 | A breeder working with a bisexual flower wants to ensure only pollen of a chosen male parent reaches the stig… | Biology/Biological Studies/Biotechnology/Biochemistry Pollination |
Hard |
| 11 | The fusion of a male gamete with the two polar nuclei is called | Biology/Biological Studies/Biotechnology/Biochemistry Double fertilisation |
Easy |
| 12 | Into which cell of the embryo sac does the pollen tube usually discharge its contents? | Biology/Biological Studies/Biotechnology/Biochemistry Double fertilisation |
Easy |
| 13 | Why is fertilisation in angiosperms called "double" fertilisation? | Biology/Biological Studies/Biotechnology/Biochemistry Double fertilisation |
Medium |
| 14 | A plant has a pollen grain with 10 chromosomes. How many chromosomes will be found in a cell of its endosperm… | Biology/Biological Studies/Biotechnology/Biochemistry Double fertilisation |
Medium |
| 15 | In an angiosperm, how many male gametes are needed to fertilise 20 ovules, assuming each ovule receives one p… | Biology/Biological Studies/Biotechnology/Biochemistry Double fertilisation |
Hard |
| 16 | Into what does the ovule develop after fertilisation? | Biology/Biological Studies/Biotechnology/Biochemistry Post-fertilisation events |
Easy |
| 17 | Which of these is an albuminous seed? | Biology/Biological Studies/Biotechnology/Biochemistry Post-fertilisation events |
Easy |
| 18 | The tender coconut water and the white kernel of coconut respectively represent | Biology/Biological Studies/Biotechnology/Biochemistry Post-fertilisation events |
Medium |
| 19 | In a monocot embryo, the sheath that encloses the radicle and root cap is called the | Biology/Biological Studies/Biotechnology/Biochemistry Post-fertilisation events |
Medium |
| 20 | Apple is called a false fruit because | Biology/Biological Studies/Biotechnology/Biochemistry Post-fertilisation events |
Hard |