Class 12 Biology MCQs Reproduction In Organisms for NEET

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?
(a) Housefly
(b) Butterfly
(c) Ophioglossum
(d) Onion

Answer: (c) Ophioglossum

If a butterfly has chromosome number 360 in its meiocyte (2n). What will be the chromosome number in its gametes?
(a) 380
(b) 190
(c) 95
(d) 760

Answer: (b) 190

In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit?
(a) Brinjal
(b) Cucumber
(c) Papaya
(d) Bitter gourd

Answer: (a) Brinjal

The wall of the ovary forms
(a) pericarp
(b) fruit wall
(c) fruit
(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?
(a) Budding
(b) Fission
(c) Conidia
(d) Gemmules

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
(a) 12,24,12
(b) 24,12,12
(c) 12, 24, 24
(d) 24, 12, 24

Answer: ((c) 12, 24, 24

Vegetative propagation in Pistia occurs by
(a) sucker
(b) offset
(c) runner
(d) rhizome

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?
(a) 40
(b) 30
(c) 20
(d) 10

Answer: (c) 20

In flowering plants, both male and female gametes are non-motile. The method to bring them together for fertilisation is
(a) water
(b) air
(c) pollination
(d) apomixis

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?
(a) Cockroach
(b) Scorpion
(c) Bee
(d) Butterfly

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

Nebenkern represents
(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
(a) Polygamy
(b) Amphimixis
(c) Ejaculation
(d) Syngamy

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
(a) 20
(b) 10
(c) 40
(d) 15

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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