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

The ability of a cell to divide into several cells during reproduction in Plasmodium is called

Budding vision

Reduction division

Binary fission multiple fission

Multiple fission

3 / 15

The number of chromosomes in parents and offsprings of a particular species remains constant due to: Halving of chromosomes during gamete formation

Doubling of chromosomes after zygote formation

Halving of chromosomes during gamete formation

Doubling of chromosomes after gamete formation

Halving of chromosomes after gamate formation

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

In Rhizopus, tubular thread-like structures bearing sporangia at their tips are called

Filaments

Hyphae

Rhizoids

Roots

6 / 15

The characteristics transmitted from parents to ofspring are present in

Cytoplasm

Ribosome

Golgi bodies

Genes

7 / 15

Which one of the following best describes the function of the umbilical cord?

Feeds the embryo with digested substances

Conveys nutrients and wastes to and from the embryo respectively

Removes waste matter from the embryo to the mothers blood

Supplies oxygenated blood from the mother to the embryo

8 / 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

9 / 15

What is the mode of asexual reproduction in hydra?

Fragmentation

Binary Fission

Spore Formation

Regeneration Or Budding

10 / 15

Which of the following is a bacterial STD?

Gonorrhoea

Warts

HIV

None Of These

11 / 15

which of the following is a viral STD?

Gonorrhoea

Syphilis.

Both 1 & 2

HIV-Aids And Warts

12 / 15

Name the organ that produces sperms in human males.

Testes

Testosterone

Both 1 & 2

None Of These

13 / 15

Name the harmone secretes a sperms in human males.

Testosterone

Testes

Both 1 & 2

All Of These

14 / 15

What do you understand by Puberty?

The age at which the reproductive organs of boys and girls become non functional.

The age at which the reproductive organs of boys and girls become functional.

It is a process of fertilisation in boys and girls.

None of these

15 / 15

Blocking of fallopian tubes prevents ?

Pregnancy

Sexually transmitted diseases

Genetic uniformity

None Of These

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Science : Ch 08 – How do Organisms Reproduce

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