Hii this is Kaibalya Nayak from Biology Adda by Kaibalya going to discuss some DPP with you on this chapter it includes Previous year questions and important question from different books. Let's Go . All the best.
1. Isogamous condition with nonflagelleted gametes is found in -
(a) Volvox
(b)Spirogyara
(c)Fucus
(d)All of the above
Ans - answer is B it's spirogyara produce non-flagelleted gamets but similar in size.
2. In Ginger vegetative propagation occurs through
(a)Runner
(b) Rhizome
(c)offset
(d) Bulbils
Ans - Answer is B . Rhizome is underground perennial stem buds present the notes take part in formation of new ariel shoot.
3. Sexual reproduction generally produces-
(a) Parthenocarpy
(b)New genetic variation
(c)Larger biomas
(d)Longer viability of seeds
Ans - Answer is b . New genetic variation.
4.Correctly matched
(a)chlmydomonas - conidia
(b)Yeast - Zoospores
(c) Onion - Bulb
(d)Ginger - Rhizome
Ans - Ans is C . Onion and Bulb is correctly matched.
5.No natural death in single celled organisms
(a)cant reproduce sexually
(b)reproduce by binary fission
(c)parent body is distributed among offsprings
(d)They are microscopic
ans - (c)parent body is distributed among offsprings
6._______ species flowers only once in life time.
(a)Bamboo species
(b)Jackfruit
(c)Papaya
(d)apple
Ans - (a)Bamboo species
7. Female gametes develops into an embryo without fertilisation this is called
(a)Autogamy
(b)Triple fusion
(c)Syngamy
(d)Parthenogenesis
ans - (d)Parthenogenesis
8. The number of chromosomes in shoot tip cell of a zea mays is 20. The number of chromosomes in the microspore mother cell of the same plant shall be
(a)20
(b)10
(c)15
(d)40
Ans - (a)20
9.Types of reproductiondepends upon
(a)Habitat
(b)physiology
(c)Genetic makeup
(d)All the above
Ans - (d)All the above
10. Banana reproduce by
(a)Rhizome
(b)offset
(c) conidia
(d)All
Ans - (a)Rhizome
Enjoy this questiom another part will be released soon. Good Luck
