Class 12 Biology - Sexual Reproduction in Flowering Plants (MCQs) #class12Biology #NEET #eduvictors

Class 12 Biology - Sexual Reproduction in Flowering Plants (MCQs)

Q1. In a cereal grain, the single cotyledon of the embryo is represented by

(a) coleoptile 

(b) coleorhiza

(c) scutellum 

(d) hypocotyl

Q2(NEET 2020). Vegetative propagule in Agave is termed as:

(a) rhizome 

(b) bulbil

(c) offset 

(d) eye

Q3. A particular plant species produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by:

(a) wind 

(b) insects 

(c) water

(d) animals

Q4. In angiosperms, male gametes are formed by the division of 

(a) microspore mother cell 

(b) microspore

(c) generative cell 

(d) vegetative cell

Q5(NEET 2020). Strobili or cones are found in

(a) Pteris 

(b) Marchantia

(c) Equisetum 

(d) Salvinia

Q6. In the embryos of a typical dicot and a grass, true homologous structures are

(a) coleorhiza and coleoptile 

(b) coleoptile and scutellum

(c) hypocotyl and radicle

(d) cotyledons and scutellum 

Q7(NEET 2018). Offsets are produced by

(a) parthenocarpy

(b) mitotic divisions

(c) meiotic divisions

(d) parthenogenesis

Q8. Dioecy states

(a) unisexuality of a flower 

(b) the bisexuality of a flower

(c) the bisexuality of a plant 

(d) unisexuality of a plant

Q9(AIPMT). Why is vivipary an undesirable character for annual crop plants?

(a) It reduces the vigour of the plant

(b) It adversely affects the fertility of the plant

(c) The seeds exhibit long dormancy

(d) The seeds cannot be stored under normal conditions for the next season

Q10(AIPMT). In oogamy, fertilisation involves

(a) a small non-motile female gamete and a large motile male gamete

(b) a large non-motile female gamete and a small motile male gamete

(c) a large non-motile female gamete and a small non-motile male gamete

(d) a large motile female gamete and a small non-motile gamete

Q11(NEET 2020). In water hyacinth and water lily, pollination takes place by

(a) water currents only

(b) wind and water

(c) insects and water

(d) insects or wind

Q12(NEET 2018). Winged pollen grains are present in

(a) Pinus

(b) Cycas

(c) mustard 

(d) mango 

Answers:

1. (c) scutellum 

2. (b) bulbil

3. (a) wind 

4. (a) microspore mother cell 

5. (c) Equisetum 

6. (d) cotyledons and scutellum 

7. (b) mitotic divisions

8. (d) unisexuality of a plant

9. (d) The seeds cannot be stored under normal conditions for the next season

10. (b) a large non-motile female gamete and a small motile male gamete

11. (d) insects or wind

12. (a) Pinus

👉See Also:

The Living World (AIPMT 7 MCQs)
Kingdom Fungi (AIPMT MCQs)
Plant Nutrition MCQs (AIPMT/NEET)
Plants Of Special Interests (Pre-Medical)
Chapter 1: Reproduction in Organisms (MCQs)

Human Health and Disease (MCQs)

Biotechnology: Principles and Processes (MCQs)

Biotechnology and Its Applications (MCQs)