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How many of the following features are t...

How many of the following features are true for Chara? a.Mostly dioecious b.Female sex organ at lower position than male c.Nucule occupies upper position than the globule e.Produces both motile male and female gametes f.Male gametes are produced inside the globule

A

Three

B

Four

C

Two

D

One

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Which of these plants is correctly matched with its reproductive characteristics ? (i) Sphagnum : Male sex organ called antheridium produce biflagellate antherozoids while the female sex organ called archesporium produces a single egg . (ii) sequoia : One of the megaspores enclosed within the megasporangium develops into a multicellular female gametophyte that bears two or more archegonia or female sex organs (iii) Wolffia : one of the male gametes fuses with the egg cell to from a zygote while the other male gamete fuses with the diploid secondary nucleus to produce the triploid primary endosperm nuclelus . (iv) polysiphonia . Sexual reproduction is oogamous with non-motile gametes and accompanied by complex post-fertilization developments

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How many of the following feature(s) is/are commonly concerned with Pinus as well as Cycas? (a) Pinnate leaves (b) Mycorrhiza (c) Branched stem (d) Direct pollination (e) Female strobili (f) Non-motile sperms (g) Simple leaves (h) Exposed ovule. Mark the correct option.

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AAKASH INSTITUTE ENGLISH-TEST 1-Examplle
  1. How many of the following features are true for Chara? a.Mostly dioeci...

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  2. Pollen grains are shed at two-celled stage in angiosperms.Find the cor...

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  3. An aquatic plant which is pollinated by water is

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  4. An angiospermic plant has the following charecteristics.Identify the t...

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  5. Select the correct statements about apomitic seeds.a)these seeds are p...

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  6. Paethenocarpic fruits

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  7. A typical angiospermic seed consist of all,except

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  8. Persistent nucellus in the seeds of black pepper is called

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  9. Both autogamy and geitonogamy are prevented in

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  10. Select the odd w.r.t. the ploidy level of cells of embryo sac.

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  11. Generative cell of pollen grain

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  12. The outer layer of sporoderm which helps in fossilization of pollen gr...

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  13. The innermost layer of anther wall whose cells nourish the developing ...

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  14. If the chromosome number in a meiotically produced gamete of a plant i...

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  15. Male gametes require water to reach the female gamete in

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  16. China rose is

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  17. Heterogametes are found in

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  18. In flowering plants,which of the following structures is present befor...

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  19. Pollen grains are the carrier of male gametes in

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  20. Syngamy does not occur outside the body of the organism in

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