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Free Download as PDF of the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. We provide all important questions and answers from chapter Reproduction in Organisms of Biology.
(16)
In which of the following organisms does spore formation take place?
[1]
Mucor
[2]
Planaria
[3]
Spirogyra
[4]
Potato
(17)
Hydra can reproduce by...
[1]
budding
[2]
both budding and regeneration
[3]
regeneration
[4]
multiple fission
Answer: both budding and regeneration
(18)
Sexual reproduction involves---division
[1]
mitotic
[2]
meiotic
[3]
meiosis at some stages
[4]
None of the above.
Answer: meiosis at some stages
(19)
Find the propagules of ginger
[1]
Runner
[2]
Bulb
[3]
Bulbil
[4]
Rhizome
(20)
Find th monoecious plant
[1]
Cocunut
[2]
Both a and b
[3]
Cucurbits
[4]
Papaya
21
Method of Gamete transfer
[1]
Pollination
[2]
Pollen
[3]
Zygote
[4]
Tentacles
22
The female organ in a flowering plant is...
[1]
Stamen
[2]
Pollen tube
[3]
Carpel
[4]
Seed
23
What does 'S' stand for in AIDS?
[1]
System
[2]
Symptom
[3]
Synapse
[4]
Syndrome
24
Testes in human male are located in...
[1]
penis
[2]
scrotum
[3]
vas deferens
[4]
abdominal cavity
25
Stoppage of sexual cycle permanently in a female is called...
[1]
menstruation
[2]
lactation
[3]
ovulation
[4]
menopause
26
The sexual cycle in human female starts at______.
[1]
birth
[2]
the age of 45
[3]
at the age of 28
[4]
puberty stage
27
Through what are the hereditary characters inherited?
[1]
Golgi complex
[2]
Chromosomes
[3]
Mitochondria
[4]
Ribosomes
28
Boys generally attain puberty at the age of _____ years.
[1]
10
[2]
12
[3]
14
[4]
16
29
Menstruation in human female lasts for ______ days.
[1]
2-3
[2]
3-5
[3]
14
[4]
28-30
30
Which of the following methods is used for vegetative propagation of plants having seeds with long dormancy or poor germination capacity?
[1]
Cutting
[2]
Budding
[3]
Grafting
[4]
Layering
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