ThePrismSolutions

ThePrismSolutions

Sexual Reproduction in Flowering Plant




Q1. In tissue culture, callus can be induced to form shoot or root by altering the ratio of:

(A) Auxin to cytokinin
(B) Cytokinin to ethylene
(C) Auxin to gibberelline
(D) Gibberelline to cytokinin



Q2. Axenic culture is :

(A) Culture of tissue
(B) Culture of genes
(C) Pure culture without contamination
(D) Pure culture of microbe without any external nutrient



Q3. Callus is :

(A) Material that heals injury in phloem
(B) Undifferentiated mass of cells
(C) Tissue developed in the region of wound
(D) All of the above



Q4. Covering of microspores tetrad is made of :

(A) Callose
(B) Pectocellulose
(C) Sporopollenin
(D) None of these



Q5. In pulses, protein are stored in

(A) Endosperm
(B) Cotyledons
(C) Pericarp
(D) Seed coat



Q6. What is pollen grain ?

(A) Microspore mother cell
(B) Male gamete
(C) Male gametophyte
(D) Partially developed embryo



Q7. Entry of pollen tube through the chalazal end is called:

(A) Orogamy
(B) Mesogamy
(C) Basigamy
(D) Syngamy



Q8. The aleurone layer in maize grain is specially rich in:

(A) Starch
(B) Lipid
(C) Auxins
(D) Proteins



Q9. The fertilization in which male gametes are carried through pollen tube, is known as:

(A) Syngamy
(B) Porogamy
(C) Siphonogamy
(D) Chalazogamy



Q10. Which of these is not essential for allogamy?

(A) Self sterility
(B) Dichogamy
(C) Heterogamy
(D) None of these



ANSWER


(Ans 1.) a

(Ans 2.) c

(Ans 3.) d

(Ans 4.) a

(Ans 5.) b

(Ans 6.) c

(Ans 7.) c

(Ans 8.) d

(Ans 9.) c

(Ans 10.) d


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