Science : Ch 08 – How do Organisms Reproduce

This test is designed based on NCERT Syllabus for Class 10 Topics : How do Organisms Reproduce

Each time random 15 questions will be displaced
So retake the quiz till you have mastered all the questions

1 / 15

Offspring produced by asexual method of reproduction have more similarity among themselves because:

Asexual reproduction involves only one parent

Asexual reproduction does not involve gametes

Asexual reproduction occurs before sexual reproduction

Asexual reproduction occurs after sexual reproduction

2 / 15

Fertilisation is the process of

Transfer of male gamete to female gamete

Fusion of nuclei of male and female gamete.

Adhesion of male and female reproductive organs

The formation of gametes by a reproductive organ

3 / 15

Characters that are transmitted from parents to ofspring during reproduction

Only similarities with parents

Only variations with parents

Both similarities and variations with parents

Neither similarities nor variations

4 / 15

Choose the precise statement(s) on budding in yeast from the following:

A parent cell divides into two or more daughter cells and here the parent identity is lost

In this the elongated nucleus divides to form two or more daughter nuclei.

A bud arises from a particular region on a parent body

After detaching from the parent body the bud grows into a new independent individual

5 / 15

Which of the following statements are true for fowers?

Flowers are always bisexual

They are the sexual reproductive organs

They are produced in all groups of plants

After fertilization they give rise to fruits

2 And 4

1 and 2

2 and 3

1 and 4

6 / 15

During adolescence, several changes occur in the human body. mark one change from the following associated with sexual maturation in boys:

Loss of milk teeth

Increase in height

Cracking of voice

Weight gain

7 / 15

Which among the following statements are true for sexual reproduction in fowering plants?

It requires two types of gametes.

Fertilisation is a compulsory event.

It always results in the formation of zygote.

Offsprings formed are clone

1 , 2 and 3

2 and 3

1 and 3

2 and 4

8 / 15

Assertion (A): Variation is useful for the survival of species over time. Reason (R) : Populations of organisms fill well-defined places in the ecosystem, using their ability to reproduce

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true but (R) is not the correct explanation of the assertion

(A) is true but (R) is false

(A) is false but (R) is true

9 / 15

Assertion (A): Vegetative propagation makes possible propagation of plants that have lost the capacity to produce seeds. Reason (R) : New plants are developed from seeds in vegetative propagation.

Both (A) and (R) are true and (R) is correct explanation of the assertion

Both (A) and (R) are true but (R) is not the correct explanation of the assertion

(A) is true but (R) is false

(A) is false but (R) is true

10 / 15

What is the mode of asexual reproduction in hydra?

Fragmentation

Binary Fission

Spore Formation

Regeneration Or Budding

11 / 15

What is the mode of asexual reproduction in planaria?

Spore Formation

Fragmentation

Binary Fission

Regeneration

12 / 15

which of the following is a viral STD?

Gonorrhoea

Syphilis.

Both 1 & 2

HIV-Aids And Warts

13 / 15

Name the organ that produces sperms in human males.

Testes

Testosterone

Both 1 & 2

None Of These

14 / 15

Blocking of fallopian tubes prevents ?

Pregnancy

Sexually transmitted diseases

Genetic uniformity

None Of These

15 / 15

The number of chromosomes shared from both male & female are

26 from each

23 from each

46 from each

12 from each

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Science : Ch 08 – How do Organisms Reproduce

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