The following 20 Multiple Choice Questions (MCQ) are based on
Chapter 11: Reproduction: How Life Continues from the NCERT Class 9
Science textbook Exploration. Each question has four options - select the
best answer and click to check.
Instructions: Read each question carefully. Choose the most
appropriate option from (a), (b), (c), or (d). Click
Show Answer to reveal the correct answer with explanation.
Multiple Choice Questions
1Reproduction is important because it:
(a) Keeps every individual alive forever
(b) Ensures continuity of a species
(c) Prevents all variation
(d) Occurs only in animals
(b) is correct
Individuals have finite life spans, but reproduction continues their lineage.
2Asexual reproduction generally involves:
(a) Two parents and gamete fusion
(b) One parent and no gamete fusion
(c) Only seed formation
(d) Meiosis followed by fertilisation
(b) is correct
A single parent produces offspring that are usually very similar genetically.
3Which is an example of vegetative propagation?
(a) Bryophyllum plantlets growing from leaves
(b) Fusion of sperm and egg
(c) Seed formation after pollination
(d) Birth of a calf
(a) is correct
New Bryophyllum plants can develop from buds along leaf margins.
4A major advantage of vegetative propagation in crops is that it:
(a) Always creates large variation
(b) Rapidly preserves desirable parental traits
(c) Requires pollination
(d) Produces only wild plants
(b) is correct
Clonal propagation efficiently multiplies plants with valued characteristics.
5Yeast commonly reproduces asexually by:
(a) Budding
(b) Pollination
(c) Fragmentation of flowers
(d) Fertilisation only
(a) is correct
A small outgrowth develops on the parent yeast cell and separates.
6Binary fission produces:
(a) Two daughter individuals from one parent
(b) Seeds inside a fruit
(c) Four gametes only
(d) A pollen tube
(a) is correct
One unicellular parent divides into two new individuals.
7Sexual reproduction involves:
(a) No genetic mixing
(b) Fusion of male and female gametes
(c) Only mitosis
(d) One parent only in every case
(b) is correct
Fertilisation combines genetic material from two gametes.
8Meiosis helps sexual reproduction by producing cells with:
(a) Double the chromosome number
(b) Half the chromosome number
(c) No genetic material
(d) Identical chromosome pairs only
(b) is correct
Reduction division prevents chromosome number from doubling each generation.
9Variation in sexually produced offspring arises partly because meiosis:
(a) Makes all gametes identical
(b) Creates new combinations of genetic material
(c) Removes chromosomes completely
(d) Prevents fertilisation
(b) is correct
Recombination and independent assortment generate genetically varied gametes.
10The male reproductive part of a flower is the:
(a) Pistil
(b) Stamen
(c) Sepal
(d) Ovule
(b) is correct
A stamen consists mainly of anther and filament and produces pollen.
11Pollen grains are produced in the:
(a) Stigma
(b) Anther
(c) Ovary
(d) Ovule
(b) is correct
The anther contains structures in which pollen develops.
12The female reproductive part of a flower is the:
(a) Stamen
(b) Pistil or carpel
(c) Petal
(d) Filament
(b) is correct
It includes stigma, style and ovary.
13Pollination is the transfer of pollen from:
(a) Stigma to ovule
(b) Anther to stigma
(c) Ovary to anther
(d) Seed to fruit
(b) is correct
Pollen must reach a compatible stigma before fertilisation can occur.
14After fertilisation in a flowering plant, an ovule generally develops into a:
(a) Petal
(b) Seed
(c) Stamen
(d) Stigma
(b) is correct
The fertilised ovule matures into a seed, while the ovary commonly forms the fruit.
15External fertilisation most commonly occurs in:
(a) The female reproductive tract
(b) A surrounding medium such as water
(c) A flower's anther
(d) A seed coat
(b) is correct
Gametes unite outside the parents' bodies, often in aquatic environments.
16In humans, sperm are produced in the:
(a) Testes
(b) Ovaries
(c) Uterus
(d) Oviducts
(a) is correct
The testes form male gametes and secrete male sex hormones.
17In humans, ova are produced in the:
(a) Uterus
(b) Ovaries
(c) Testes
(d) Vas deferens
(b) is correct
The ovaries form female gametes and secrete reproductive hormones.
18Human fertilisation normally occurs in the:
(a) Oviduct
(b) Uterus lining
(c) Vagina
(d) Ovary follicle
(a) is correct
Sperm and ovum usually fuse in the oviduct before the embryo reaches the uterus.
19Implantation is the attachment of the early embryo to the:
(a) Ovary
(b) Uterine lining
(c) Testis
(d) Cervix only
(b) is correct
The embryo embeds in the endometrium for further development.
20If an ovum is not fertilised, the thickened uterine lining is shed during:
(a) Pollination
(b) Menstruation
(c) Budding
(d) Implantation
(b) is correct
The cycle ends with shedding of the lining and blood when pregnancy does not occur.
