Here, you will get Class 12 Biology MCQ of Chapter 1 Reproduction In Organisms for cracking NEET/AIIMS. By solving these MCQs of Class 12 Biology Chapter 1 Reproduction In Organisms, you will get the confidence to crack NEET. Practice MCQ Questions for Class 12 Biology with Answers on a daily basis and score well in exams.
Reproduction In Organisms Class 12 MCQs Questions with Answers
Which of the following groups is formed only of the hermaphrodite organisms?
(a) Earthworm, tapeworm, housefly, frog
(b) Earthworm, tapeworm, sea horse, housefly
(c) Earthworm, leech, sponge, roundworm
(d) Earthworm, tapeworm, leech, sponge
Answer: (d) Earthworm, tapeworm, leech, sponge
Read the following statements and select the incorrect one.
(a) Cucurbits and coconuts are monoecious plants.
(b) Papayas and date palms are dioecious plants.
(c) Leeches and tapeworms are bisexual animals.
(d) Sponges and coelenterates are unisexual animals.
Answer: (d) Sponges and coelenterates are unisexual animals.
Which of the following organisms has the highest number of chromosomes?
Answer: (c) Ophioglossum
If a butterfly has chromosome number 360 in its meiocyte (2n). What will be the chromosome number in its gametes?
Answer: (b) 190
In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit?
(d) Bitter gourd
Answer: (a) Brinjal
The wall of the ovary forms
(b) fruit wall
(d) both (a) and (b)
Answer: (d) both (a) and (b)
Entemophily take place by
(a) By Bird
(b) By Bat
(c) By Wind
(d) By Insect
Answer: (d) By Insect
Asexual reproduction in Penicillium fungus usually takes place through?
Answer: (c) Conidia
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: (c) Germinating eye bud
The most significant feature of vegetative propagation is that
(a) it is a method of producing a large number of individuals genetically identical to the parent
(b) it is a method of producing a large number of individuals genetically different from the parent
(c) it ensures that the progeny individuals are resistant to diseases and pests
(d) it is an age old practice.
Answer: (a) it is a method of producing a large number of individuals genetically identical to the parent
The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively
(c) 12, 24, 24
(d) 24, 12, 24
Answer: ((c) 12, 24, 24
Vegetative propagation in Pistia occurs by
Answer: (b) offset
A diploid parent plant body produces ________ gametes and a haploid parent plant body produces ________ gametes.
(a) diploid, haploid
(b) haploid, diploid
(c) diploid, diploid
(d) haploid, haploid
Answer: (d) haploid, haploid
In maize, a meiocyte has 20 chromosomes. What will be the number of chromosomes in its somatic cell?
Answer: (c) 20
In flowering plants, both male and female gametes are non-motile. The method to bring them together for fertilisation is
Answer: (c) pollination
In higher plants, meiosis occurs?
(a) During formation of gametes
(b) During fertilization
(c) During embryogenesis
(d) In seeds
Answer: (a) During formation of gametes
Which of the following is viviparous?
Answer: (b) Scorpion
After ovulation, the ruptured Graafian follicle changes into
(a) Corpus striatum
(b) Corpus iuteum
(c) Corpus albicans
(d) Corpus callosum
Answer: (b) Corpus iuteum
Menopause in female comes at the age of
(a) 30 to 40 years
(b) 45-55 years
(c) 55 to 60 years
(d) After 60 years
Answer: (b) 45-55 years
(a) Mitochondrial spiral of sperm
(b) Acrosome of sperm
(c) Centiples of sperm
(d) Tail of sperm
Answer: (a) Mitochondrial spiral of sperm
Fusion of male and female gametes is called
Answer: (d) Syngamy
There is no natural death in single celled organisms like Amoeba and bacteria because
(a) they cannot reproduce sexually
(b) they reproduce be binary fission
(c) parental body is distributed among the offspring
(d) they are microscopic
Answer: (c) parental body is distributed among the offspring
The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be
Answer: (a) 20
Clear cut vegetative, reproductive and senescent phases cannot be observed in
(a) annual plants
(b) perennial plants
(c) biennial plants
(d) ephemeral plants
Answer: (b) perennial plants
Oestrous cycle is reported in
(a) cows and sheep
(b) humans and monkeys
(c) chimpanzees and gorillas
(d) none of these
Answer: (a) cows and sheep
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