Samacheer Kalvi EM 12 Bio - Botany Unit6 Chapter1 MCQs Mock Test

12th Bio - Botany Mock Test

Chapter 1: Asexual and Sexual Reproduction in Plants

Choose the correct answer from the multiple choices, then click "Next" to goto next question and click "OK" after seeing the score.

 

1. Choose the correct statement from the following
   1.   Gametes are involved in asexual reproduction
   2.   Bacteria reproduce asexually by budding
   3.   Conidia formation is a method of sexual reproduction
   4.   Yeast reproduce by budding
2. An eminent Indian embryologist is
   1.   S.R. Kashyap
   2.   P. Maheswari
   3.   M.S. Swaminathan
   4.   K.C. Mehta
3. Identity the correctly matched pair
   1.   Tuber – Allium cepa
   2.   Sucker – Pistia
   3.   Rhizome – Musa
   4.   Stolon – Zingiber
4. Pollen tube was discovered by
   1.   J.G. Kolreuter
   2.   G.B. Amici
   3.   E. Strasburger
   4.   E. Hanning
5. Size of pollen grain in Myosotis
   1.   10 micrometer
   2.   20 micrometer
   3.   200 micrometer
   4.   2000 micrometer
6. First cell of male gametophyte in angiosperm is
   1.   Microspore
   2.   Megaspore
   3.   Nucleus
   4.   Primary Endosperm Nucleus
7. Match the following
   (I) External fertilization – (i) pollen grain
   (II) Androecium – (ii) anther wall
   (III) Male gametophyte – (iii) algae
   (IV) Primary parietal layer – (iv) stamens
   1.   I-(iv); II-(i); III-(ii); IV-(iii)
   2.   I-(iii); II-(iv); III-(ii); IV-(i)
   3.   l-(iii); II-(iv); III-(ii); IV-(i)
   4.   I-(iii); II-(i); III-(iv); IV-(ii)
8. Arrange the layers of anther wall from locus to periphery
   1.   Epidermis,middle layers, tapetum, endothecium
   2.   Tapetum, middle layers, epidermis, endothecium
   3.   Endothecium, epidermis, middle layers, tapetum
   4.   Tapetum, middle layers endothecium epidermis
9. Identify the incorrect pair
   1.   sporopollenin – exine of pollen grain
   2.   tapetum – nutritive tissue for developing microspores
   3.   Nucellus – nutritive tissue for developing embryo
   4.   obturator – directs the pollen tube into micropyle
10. Assertion : Sporopollenin preserves pollen in fossil deposits
    Reason : Sporopollenin is resistant to physical and biological decomposition
    1.   assertion is true; reason is false
    2.   assertion is false; reason is true
    3.   Both Assertion and reason are not true
    4.   Both Assertion and reason are true
11. Choose the correct statement(s) about tenuinucellate ovule
    1.   Sporogenous cell is hypodermal
    2.   Ovules have fairly large nucellus
    3.   sporogenous cell is epidermal
    4.   ovules have single layer of nucellus tissue
12. Which of the following represent megagametophyte
    1.   Ovule
    2.   Embryo sac
    3.   Nucellus
    4.   Endosperm
13. In Haplopappus gracilis, number of chromosomes in cells of nucellus is 4. What will be the chromosome number in Primary endosperm cell?
    1.   8
    2.   12
    3.   6
    4.   2
14. Transmitting tissue is found in
    1.   Micropylar region of ovule
    2.   Pollen tube wall
    3.   Stylar region of gynoecium
    4.   Integument
15. The scar left by funiculus in the seed is
    1.   tegmen
    2.   radicle
    3.   epicotyl
    4.   hilum
16. A Plant called X possesses small flower with reduced perianth and versatile anther. The probable agent for pollination would be
    1.   water
    2.   air
    3.   butterflies
    4.   beetles
17. Consider the following statement(s)
    i) In Protandrous flowers pistil matures earlier
    ii) In Protogynous flowers pistil matures earlier
    iii) Herkogamy is noticed in unisexual flowers
    iv) Distyly is present in Primula
    1.   i and ii are correct
    2.   ii and iv are correct
    3.   ii and iii are correct
    4.   i and iv are correct
18. Coelorhiza is found in
    1.   Paddy
    2.   Bean
    3.   Pea
    4.   Tridax
19. Parthenocarpic fruits lack
    1.   Endocarp
    2.   Epicarp
    3.   Mesocarp
    4.   seed
20. In majority of plants pollen is liberated at
    1.   1 celled stage
    2.   2 celled stage
    3.   3 celled stage
    4.   4 celled stage

Samacheer Kalvi EM 12th Std Bio - Botany Unit 6 Chapter 1 MCQs Mock Test Instructions

Chapter 1: Asexual and Sexual Reproduction in Plants

Here you will find 20 MCQs questions and options. Read the questions carefully and select the appropriate answer for the question by selecting/clicking the box before the option. A pop-up box will open by displaying the result of the option selected. The result of each question will be based on percentages. Each question will have 3 chances to select the right option and for every chance, the percentage of scores will be reduced. Likewise, the remaining questions also take place. The overall percentage scored will be displayed at the completion of the mock test.

Note: Every time the page loads, the question and options will be randomized and takes you to the beginning of the particular exercise.

Button Navigations:

The Below Image shows the button navigations.

• The Home Button On the Top and Bottom Navigates to the Homepage of the Subject (Example: To Bio - Botany if the mock test is taken from Bio - Botany).
• The Next Chapter Button on the Top and Bottom Navigates to the Next Chapter (Example: From Chapter 1 to Chapter 2 and so on).
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• The Show All Questions Button Displays all the questions and options of that exercise on a single page.
• The Option Box Icon (Box with Question mark icon), is the box that is to be selected for the correct option. By selecting/clicking the option box, a pop-up box will open by displaying the result of the option selected.