NEET- Reproduction in Organisms- Online test series

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Each question carries 4 scores. For each incorrect response, 1 score will be deducted.

Question 1

The period from birth to the natural death of an organism represents ...............

(a) Somatic phase (b) Reproductive phase (c) Vegetative phase (d) Life span

Question 2

Which one of the following has natural death?

(a) Amoeba (b) Earthworm (c) Planaria (d) Bacteria

Question 3

Match the following:

(a) A-3, B-1, C-5, D-2, E-4 (b) A-5, B-1, C-2, D-3, E-4 (c) A-4, B-3, C-5, D-2, E-1 (d) A-2, B-1, C-5, D-3, E-4

Question 4

Morphologically and genetically similar individuals are known as

(a) Buds (b) Clones (c) Offspring (d) Gemmules

Question 5

Amoeba reproduces asexually by

(a) Binary fission (b) Multiple fission (c) Cell division (d) All of these

Question 6

Binary fission is a method reproduction in

(a) Protists (b) Monerans (c) Amoeba & Paramaecium (d) All the above

Question 7

Hydra, Sponge and Yeast can reproduce by

(a) Budding (b) Fission (c) Fragmentation (d) Gemmule formation

Question 8

In plants, the units of vegetative propagation are

(a) Runner & Rhizome (b) Sucker & tuber (c) Offset and bulb (d) All the above

Question 9

Match the following:

(a) A-3, B-1, C-5, D-2, E-4 (b) A-5, B-1, C-2, D-3, E-4 (c) A-4, B-3, C-5, D-2, E-1 (d) A-2, B-1, C-5, D-3, E-4

Question 10

The period of growth to reach in maturity for sexual reproduction is called

(a) Juvenile phase (b) Reproductive phase (c) Senescent phase (d) None of these

Question 11

In higher plants, the end of vegetative phase is indicated by the

(a) Germination (b) Flowering (c) Seed formation (d) Senescence

Question 12

Which group of plants show clear cut vegetative, reproductive & senescent phases?

(a) Annual & Perennial (b) Perennial & biennial (c) Annual & biennial (d) Only Annual

Question 13

Strobilanthus kunthiana flowers once in

(a) Their lifetime (b) 50-100 years (c) 5 years (d) 12 years

Question 14

The females of placental mammals exhibit cyclical changes in the ovaries, accessory ducts and hormones during the reproductive phase. In non-primates, this phenomenon is called

(a) Oestrus cycle (b) Menstrual cycle (c) Ovarian cycle (d) Uterine cycle

Question 15

In the last phase of lifespan, metabolism gradually slows down. It ultimately leads to

(a) Senescence (b) Metabolic disorders (c) Death (d) Infertility

Question 16

The events in sexual reproduction prior to the fusion of gametes are

(a) Gametogenesis and gamete transfer (b) Spermatogenesis and oogenesis (c) Gametogenesis and pollination (d) All the above

Question 17

Which of the following organism has homogametes?

(a) Fucus (b) Cladophora (c) Pheretima (d) Periplaneta

Question 18

Which of the following statements is wrong?

(a) If male & female reproductive structures present in same individual, it is called bisexual. (b) Hibiscus, Pisum etc. are bisexual plants (c) If male & female flowers are present on same plant, it is called dioecious. (d) Earthworms, leech, sponge, tapeworm, etc. are hermaphrodites.

Question 19

If male and female reproductive structures are present on different individuals, it is called

(a) Bisexual (b) Monoecious (c) Unisexual (d) Hermaphrodite

Question 20

Fungi may be

(a) Homothallic (b) Heterothallic (c) Bisexual or Unisexual (d) All the above

Question 21

Match the following:

(a) A-3, B-1, C-5, D-2, E-4 (b) A-4, B-3, C-5, D-2, E-1 (c) A-5, B-1, C-2, D-3, E-4 (d) A-2, B-1, C-5, D-3, E-4

Question 22

Chromosome numbers of Apple, rice, maize, potato and onion respectively are

(a) 34, 24, 20, 48, 16 (b) 24, 34, 48, 20, 16 (c) 16, 20, 34, 24, 48 (d) 48, 16, 34, 24, 20

Question 23

Which organism has the highest chromosome number?

(a) Butterfly (b) Tortoise (c) Ophioglossum (d) Hermit crab

Question 24

Which of the following sets of organisms have haploid parental body?

(a) Pteridophytes, gymnosperms and protists (b) Many monerans, fungi, algae & bryophytes (c) Many algae, bryophytes, gymnosperms & fungi (d) Protists, fungi, sponges and cnidarians

Question 25

Which statement is false?

(a) Male gametes need a medium to move towards female gametes for fertilisation. (b) In some fungi and algae, both types of gametes are motile. (c) In most organisms, male gamete is stationary and the female gamete is motile. (d) In algae, bryophytes & pteridophytes, gamete transfer takes place through water medium.

Question 26

In rotifers, honeybees, some lizards, birds such as turkey etc., female gamete develops to new organisms without fertilisation. This is called

(a) Spermatogenesis (b) Parthenogenesis (c) Neotony (d) Oogenesis

Question 27

Regarding external fertilisation, pick out the false statement from the following.

(a) Syngamy occurs in the water, i.e. zygote is formed outside the body. (b) Such organisms show synchrony between the sexes and release large number of gametes into the surrounding medium to ensure syngamy. (c) Only few aquatic organisms show external fertilization. (d) The offspring are extremely vulnerable to predators threatening their survival up to adulthood.

Question 28

Regarding the site of fertilization, find out the odd one.

(a) Reptiles, birds & mammals (b) Bryophytes & pteridophytes (c) Gymnosperms & angiosperms (d) Osteichthyes & amphibians

Question 29

In seed plants,

(a) The non-motile male gametes are carried to female gamete by pollen tubes. (b) The motile male gametes are carried to female gamete by pollen tubes. (c) The non-motile female gametes are carried to male gamete by pollen tubes. (d) The motile female gametes are carried to male gamete by pollen tubes.

Question 30

In organisms with haplontic life cycle,

(a) Zygote divides by mitosis into diploid spores that grow into diploid individuals. (b) Zygote divides by meiosis into haploid spores that grow into haploid individuals. (c) Zygote divides by meiosis into haploid spores that grow into diploid individuals. (d) Zygote divides by mitosis into diploid spores that grow into haploid individuals.

Question 31

Pick out the false statement.

(a) Sexually reproducing organisms begin life as a zygote. (b) Zygote is the vital link between organisms of one generation and the next. (c) During embryogenesis, zygote undergoes meiosis and cell differentiation. (d) Zygote is a totipotent cell.

Question 32

During embryogenesis, the modifications of groups of cells into various tissues and organs are caused by

(a) Mitosis (b) Meiosis (c) Cleavage (d) Cell differentiation

Question 33

Oviparity means

(a) Giving birth to young ones (b) Laying fertilized or unfertilized eggs (c) Hatching of eggs inside the body (d) Both b & c

Question 34

Which of the following is more advanced for proper care and protection of embryo?

(a) Viviparity (b) Oviparity (c) Ovoviviparity (d) Marsupium

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