CBSE Class 12 Sexual Reproduction in Flowering Plants Multiple Choice Questions with Answers. MCQ Questions Class 12 Sexual Reproduction in Flowering Plants with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT MCQ questions Class 12 Sexual Reproduction in Flowering Plants with Answers to know their preparation level.
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MCQ Questions Class 12 Sexual Reproduction in Flowering Plants with Answers - Set - 1
Question 1:
Fertilization is depicted by the condition
(a) N → 2N
(b) 2N → N
(c) 2N → 4N
(d) 4N → 2N
Correct Answer – (A)
Question 2:
The aleurone layer in maize grain is specially rich in :
(a) Starch
(b) Lipids
(c) Auxims
(d) Proteins
Correct Answer – (D)
Question 3:
The pollen tube usually enters the embryosac
(a) Through one of the synergids
(b) By directly penetrating the egg
(c) Between one synergid and central cell
(d) By Jtnocking off the antipodal cells
Correct Answer – (A)
Question 4:
Through which cell of the embryo sac, does the pollen tube enter the embryo sac?
(a) Egg cell
(b) Persistant synergid
(c) Degenerated synergid
(d) Central cell
Correct Answer – (C)
Question 5:
In some plants anthers and stigma grow and mature at same time. This phenomenon is called
(a) Homogamy
(b) Syngamy
(c) Allogamy
(d) Fusion
Correct Answer – (A)
MCQ Questions Class 12 Sexual Reproduction in Flowering Plants With Answers
Question 6:
Pollen grains are able to withstand extremes of temperature and dissication because their exine is composed of
(a) Cutin
(b) Suberin
(c) Sporopollenin
(d) Callose
Correct Answer – (C)
Question 7:
Milky water of tender coconut is
(a) Liquid gametes
(b) Liquid nucellus
(c) Liquid female gametophyte
(d) Liquid endosperm
Correct Answer – (D)
Question 8:
Anthersis is a phenomenon which refers to
(a) Formation of pollen
(b) Development of anther
(c) Opening of flower bud
(d) Reception of pollen by stigma
Correct Answer – (C)
Question 9:
In which one pair both the plants can be vegetatively propagated by leaf segments?
(a) Agave and Kalanchoe
(b) Bryophyllum and Kalanchoe
(c) Asparagus and Bryophyllum
(d) Chrysanthemum and Agave
Correct Answer – (B)
Question 10:
In a type of apomixis known as adventive embryony, embryos develop directly from the
(a) Nucellus or integuments
(b) Zygote
(c) Synergids or antipodals in an embryo sac
(d) Accessory embryo sacs in the ovule
Correct Answer – (A)
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