Reproduction in Organisms Test

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Reproduction in Organisms Test - 62

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Weekly Quiz Competition

Question 1
1 / -0

In which living organism asexual reproduction takes place among the following?
(P) Banana (Q) Dog (R) Yeast (S) Amoeba.

A
P and Q

B
P, R and S

C
Q and S

D
Q, R and S

Solution

Banana. Yeast and Amoeba undergo asexual reproduction. Banana is cultivated by vegetative propagation, Yeast reproduces by budding and amoeba reproduces by binary fission. Dog reproduces via sexual reproduction.
Question 2
1 / -0

Asexual reproduction in fungi takes place by

A
endospore

B
gametangia

C
exospores

D
conidiospore

Solution

Asexual reproduction in fungi takes place by conidia, zoospore, sporangiospores, chlamydospore and oidia.
In some fungi, the spores are not formed inside a sporangium. They are born free on the tips of special branches called conidiophores. This spores thus formed are called conidiophore for example in Penicillium.

So, the correct option is 'conidiospore'.
Question 3
1 / -0

The life span of a parrot is ________.

A
25 yrs

B
50 yrs

C
140 yrs

D
15 yrs
Solution
- Life span is the period of time from birth to the natural death of an organism. Each organism has a specific lifespan in which it grows, undergoes a reproductive phase, and then dies.
- Different organisms have different lifespans.
- The approximate lifespan of the parrot is 140-150 years. It has quite a long lifespan than any other bird.
So, the correct option is '140 yrs'.
Question 4
1 / -0

Find out the wrongly matched pair

A
tuber - potato

B
rhizome - ginger

C
bulbil - Agave

D
leaf buds - banana

E
offset - water hyacinth

Solution

Vegetative propagation is a type of reproduction where the new plant part develops from any part of the plant other than the reproductive part.
The potato is a stem modification to store food and known as a tuber. It has 'eyes'.
Ginger propagates by the help of rhizome.
Agave is a plant in which the propagation takes place by bulbils.
In banana, the modification is a sucker and the propagation takes place by it.
The offset is a mode of the formation of a new plant in water hyacinth or Eichhornia.
So, the correct option is 'leaf buds - banana'.
Question 5
1 / -0

Which one of the following statements is not correct?

A
Offspring produced by the asexual reproduction are called clone

B
Microscopic, motile asexual reproductive structures are called zoospores

C
In potato, banana and ginger. the plantlets arise from the internodes present in the modified stem

D
Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes

Solution

Stem Tuber is the tuberous part of the underground stem. It occurs in the soil at any time. The auxiliary branches that are produced in the soil surface grow into the soil and that become swollen due to the accumulation of starch and protein example potato. In potato, the stem nature is evident by the presence of eyes on its brownish surface. Each eye is a bud like structure. Axillary bud is situated in the pit of the eye.
The rhizome is a thickened, underground dorsiventral stem that grows horizontally at a particular depth within the soil.
Straggling type of rhizomes are the ones that are horizontal in position and generally branched for example in ginger. In this also the new bud arises from the nodal area.
In banana which is a sucker the new plantlets rise from the modified stem.

So, the correct option is 'In potato, banana and ginger. the plantlets arise from the internodes present in the modified stem'
Question 6
1 / -0

Which of the following is an egg laying mammal?

A
Panthera leo

B
Elephas maximus

C
Hemidactylus flaviviridis

D
Ornithorhynchus anatinus
Solution
- Panthera leo which is commonly known as lion belongs to the family felidae and comes under the class mammalia (which give birth to their young ones).
- Elephas maximus which is commonly known as asiatic elephant belongs to the family elephantidae and comes under the class mammalia (which give birth to their young ones).
- Hemidactylus flaviviridis is a species of lizards which is also known as the geko or northern house gecko which belong to the class amphibia.
- Ornithorhynchus anatinus is also known as duck-billed platypus which is a semiaquatic egg-laying mammal.
- So, the correct answer is 'Ornithorhynchus anatinus'.
Question 7
1 / -0

Marsupials are

A
Viviparous

B
Oviparous

C
Ovo-viviparous

D
Omni-vorous

Solution

Marsupial mammals are viviparous mammals in which the embryo is born at a very early stage and complete its development outside the mother's body. Examples of living marsupials mammals are bandicoots, kangaroos, koalas etc.
So, the correct option is 'Viviparous'.
Question 8
1 / -0

Zoospores are

A
motile spores seen in bryophytes

B
motile sexual spores

C
motile asexual spores in fungi

D
motile asexual spores in algae and fungi

Solution

A zoospore is a motile asexual spore that uses a flagellum for locomotion. Also called a swarm spore, these spores are created by some protists, bacteria, and fungi to propagate themselves.
So the correct answer is "motile asexual spores in algae and fungi".
Question 9
1 / -0

What is the number of times, that yeast will undergo cell division in 2 days?

A
$$1$$

B
$$2$$

C
$$16$$

D
$$32$$

Solution

It is well known that the time required to complete one division for a yeast is approximately 90 minutes.
Total number of minutes in 2 days = 2 x 60 x 24 = 28,80 minutes.
In 90 mins no. of divsion = 1
In 28,800 mins no. of division possible = 1 x 28,80 / 90
=32 divisions.
So, the correct answer is '32'.
Question 10
1 / -0

Ginger is multiplied vegetatively by means of

A
Bud

B
Tubes

C
Corn

D
Rhizome

Solution

Rhizome is a horizontal stem that forms root and shoot which is present in ginger which is capable of forming a new plant.
So the correct option is 'Rhizome'.

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Re-Attempt Weekly Quiz Competition

Reproduction in Organisms Test - 62

Result

Reproduction in Organisms Test - 62

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SHARING IS CARING

Question 1

P and Q

P, R and S

Q and S

Q, R and S

Solution

Question 2

endospore

gametangia

exospores

conidiospore

Solution

Question 3

25 yrs

50 yrs

140 yrs

15 yrs

Solution

Question 4

tuber - potato

rhizome - ginger

bulbil - Agave

leaf buds - banana

offset - water hyacinth

Solution

Question 5

Offspring produced by the asexual reproduction are called clone

Microscopic, motile asexual reproductive structures are called zoospores

In potato, banana and ginger. the plantlets arise from the internodes present in the modified stem

Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes

Solution

Question 6

Panthera leo

Elephas maximus

Hemidactylus flaviviridis

Ornithorhynchus anatinus

Solution

Question 7

Viviparous

Oviparous

Ovo-viviparous

Omni-vorous

Solution

Question 8

motile spores seen in bryophytes

motile sexual spores

motile asexual spores in fungi

motile asexual spores in algae and fungi

Solution

Question 9

$$1$$

$$2$$

$$16$$

$$32$$

Solution

Question 10

Bud

Tubes

Corn

Rhizome

Solution

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