Reproduction in Animals Test

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Reproduction in Animals Test - 18

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Weekly Quiz Competition

Question 1
1 / -0

Binary fission is the division of the parent body into how many parts?

A
Three

B
Four

C
Two

D
Nine

Solution

Binary fission is the process of division of parent cell into two daughter cells of equal size. During binary fission, the cell elongates and its nucleus divides into two daughter nuclei. Then the cell divides into two, each cell receives a nucleus.
So, the correct answer is 'Two'.
Question 2
1 / -0

Larva which hatches from the egg of the silk moth is called:

A
Caterpillar

B
Pupa

C
Silk moth

D
Butterfly

Solution

The female silk moth lays eggs, from which larvae hatch which are called caterpillars.
Thus, the correct answer is A.
Question 3
1 / -0

Binary fission is seen in:

A
Amoeba

B
Homo sapiens

C
Spirogyra

D
Kalanchoe
Solution
(A) Correct option A
(B) Explanation of correct answer
Binary fission is a mode of asexual reproduction, in which an animal reproduces by dividing itself into two halves. This type of reproduction is seen in Amoeba.
Spirogyra reproduces asexually by fragmentation as well as sexually by conjugation.
Kalanchoe propagates vegetatively by producing adventitious buds on the leaf margins.
Homo sapiens or humans reproduce sexually.
Question 4
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........... is a mode of asexual reproduction.

A
Cloning

B
Budding

C
Pollination

D
Germination
Solution
There are many different modes of asexual reproduction.
There is the involvement of a single parent. Budding is one of the modes of asexual reproduction.
The parent develops an outgrowth called bud. The bud remains attached to the parent body for some time.
When the bud develops and gets matured, the bud gets detached from the parent body. This is commonly observed in Hydra. Budding also occurs in fungus-like yeast.
Thus, the correct answer is option B.
Question 5
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Which of the following is a viviparous animal?

A
Cat

B
Sheep

C
Rabbit

D
All of the above

Solution

Viviparous animals are those animals which give birth to offsprings. For example, cat, sheep, human, rabbit, etc. Oviparous animals are those animals that lay eggs. There is little or no development of offspring within the mother. For example, frogs, birds, insects.
Thus, the correct answer is option D.
Question 6
1 / -0

Single called animals are said to be immortal because

A
They grow indefinitely in size

B
They can tolerate any degree of change in temperature

C
They can reproduce throughout their life span

D
They continue to live as their daughter cells

Solution

No individual is immortal except some single-celled organisms (e.g., Amoeba). It is due to the fact that they divide and continue to live as their daughter cells.
Question 7
1 / -0

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because

A
Sexual reproduction is a lengthy process

B
Gametes of parents have qualitatively different genetic composition

C
Genetic material comes from parents of two different species

D
Greater amount of DNA is involved in sexual reproduction

Solution

Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that single parent only. During sexual reproduction, fertilization creates a single-celled zygote which includes genetic material from both gametes. Therefore, the complex mixture of genetic material causes a great variation in the offspring.
So, the correct option is 'Gametes of parents have qualitatively different genetic composition'.
Question 8
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Asexual method of reproduction by binary fission is common to which of the following?
(i) Some eukaryotes
(ii) All eukaryotes
(iii) Some prokaryotes
(iv) All prokaryotes

A
(i) and (ii)

B
(ii) and (iii)

C
(i) and (iv)

D
(iii) and (iv)
Solution
- Binary fission is one of the method of asexual reproduction.
- In this process, an organism duplicates its genetic material and divides into two parts where every new organism receives one copy of DNA.
- This type of asexual reproduction and the most common form of reproduction in prokaryotes and some single-celled eukaryotes.
- So, the correct answer is option C- '(i) and (iv)'.
Question 9
1 / -0

Which of the following statements is not correct regarding oviparous animals?

A
Females lay fertilized/unfertilized eggs at a safe place.

B
Development of zygote takes place outside the female's body.

C
Examples of oviparous animals are all birds, most reptiles and egg-laying mammals.

D
None of these

Solution

Oviparous animals are animals that lay eggs. Fertilization can be external or internal, but the development of the embryo takes place outside the mother's womb. Fish, amphibians, reptiles, birds, and few exceptional mammals (duck-billed platypus), are oviparous. Oviparous animals usually lay their eggs in well-protected nests,
Since all the statements are correct, therefore, the correct option is 'None of these'.
Question 10
1 / -0

______ is the most common method of reproduction in bacteria.

A
Binary fission

B
Endospore formation

C
Conjugation

D
Sexual reproduction
Solution
- Binary fission is the method of reproduction in which the formation of two daughter cells takes place from one parent cell. It is the most common method of reproduction in bacteria.
So, the correct option is ‘Binary fission’.

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Re-Attempt Weekly Quiz Competition

Reproduction in Animals Test - 18

Result

Reproduction in Animals Test - 18

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SHARING IS CARING

Question 1

Three

Four

Two

Nine

Solution

Question 2

Caterpillar

Pupa

Silk moth

Butterfly

Solution

Question 3

Amoeba

Homo sapiens

Spirogyra

Kalanchoe

Solution

Question 4

Cloning

Budding

Pollination

Germination

Solution

Question 5

Cat

Sheep

Rabbit

All of the above

Solution

Question 6

They grow indefinitely in size

They can tolerate any degree of change in temperature

They can reproduce throughout their life span

They continue to live as their daughter cells

Solution

Question 7

Sexual reproduction is a lengthy process

Gametes of parents have qualitatively different genetic composition

Genetic material comes from parents of two different species

Greater amount of DNA is involved in sexual reproduction

Solution

Question 8

(i) and (ii)

(ii) and (iii)

(i) and (iv)

(iii) and (iv)

Solution

Question 9

Females lay fertilized/unfertilized eggs at a safe place.

Development of zygote takes place outside the female's body.

Examples of oviparous animals are all birds, most reptiles and egg-laying mammals.

None of these

Solution

Question 10

Binary fission

Endospore formation

Conjugation

Sexual reproduction

Solution

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