CBSE Class 12 Biology – MCQ and Online Tests – Unit 1 – Reproduction in Organisms
Every year CBSE conducts board exams for 12th standard. These exams are very competitive to all the students. So our website provides online tests for all the 12th subjects. These tests are also very effective and useful for those who preparing for competitive exams like NEET, JEE, CA etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.
These online tests are based on latest CBSE Class 12 syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.
CBSE Class 12 Biology – MCQ and Online Tests – Unit 1 – Reproduction in Organisms
Question 1.
Budding is the example of :
(a) Vegetative reproduction
(b) Tissue culture
(c) Sexual production
(d) Dispersal
Answer
Answer: (a) Vegetative reproduction
Question 2.
When the gametes of two different strains fuse each other, then this process of reproduction is :
(a) Sexual reproduction
(b) Asexual, reproduction
(c) Vegetative reproduction
(d) None of these
Answer
Answer: (a) Sexual reproduction
Question 3.
Earthworm is:
(a) Unisexual
(b) Bisexual
(c) Asexual
(d) Neutral
Answer
Answer: (b) Bisexual
Question 4.
What is hexapioid (on), in which total number, of chromosomes are 42. then number of chromosomes in its any gamete:
(a) 14
(b) 28
(c) 42
(d) 7
Answer
Answer: (d) 7
Question 5.
Vegetative reproduction takes place in Bacteria :
(a) By binary fission
(b) By hybridization
(c) Byfiission
(d) By fission
Answer
Answer: (a) By binary fission
Question 6.
Asexual reproduction in Penicillium fungus usually takes place through?
(a) Budding
(b) Fission
(c) Conidia
(d) Gemmules
Answer
Answer: (c) Conidia
Question 7.
In potato, which structure takes part in vegetative reproduction?
(a) Adventitious root
(b) Apex bud of stem
(c) Germinating eye bud
(d) Arial shoot
Answer
Answer: (c) Germinating eye bud
Question 8.
Vegelative reproduction takes place in Bryophyllum :
(a) By buds
(b) By leaves
(c) By seeds
(d) By roots
Answer
Answer: (b) By leaves
Question 9.
An example of rhizome is
(a) Garlic
(b) Colocassia
(c) Ginger
(d) Onion
Answer
Answer: (c) Ginger
Question 10.
Pollination by Bat is called :
(a) Omithorphily
(b) Entemophily
(c) Cheropterophily
(d) Hydrophily
Answer
Answer: (c) Cheropterophily
Question 11.
Entemophily take place by
(a) By Bird
(b) By Bat
(c) By Wind
(d) By Insect
Answer
Answer: (d) By Insect
Question 12.
Which of the following is viviparous?
(a) Cockroach
(b) Scorpion
(c) Bee
(d) Butterfly
Answer
Answer: (b) Scorpion
Question 13.
Which structure takes part in gametogenesis :
(a) Male gamete)
(b) Female gamete
(c) Both (a) and (b)
(d) Male or female gamete
Answer
Answer: (c) Both (a) and (b)
Question 14.
In higher plants, fertilization is :
(a) External
(b) Internal
(c) In water
(d) In air
Answer
Answer: (b) Internal
Question 15.
The organism similar to parent can be obtained by:
(a) Speed
(b) Zygote
(c) Gametes
(d) Binary fission
Answer
Answer: (d) Binary fission
Question 16.
Anemophily takes place by:
(a) By Bird
(b) By Bat
(c) By Snail
(d) By Wind
Answer
Answer: (d) By Wind
Question 17.
The example of bulb is:
(a) Ginger
(b) Doob grass
(c) Onion
(d) Potato
Answer
Answer: (c) Onion
Question 18.
The reproduction takes place by gemma :
(a) In higher plants
(b) In lower animals
(c) In some bryophytes
(d) In mammals
Answer
Answer: (c) In some bryophytes
Question 19.
The term scion is used in relation to :
(a) Embryology
(b) Sexual reproduction
(c) Pollen
(d) Grafting
Answer
Answer: (d) Grafting
Question 20.
In higher plants, meiosis occurs?
(a) During formation of gametes
(b) During fertilization
(c) During embryogenesis
(d) In seeds
Answer
Answer: (a) During formation of gametes
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