MCQs for Class 10 Science Book Chapter 8 “How do organisms reproduce”

Check the below NCERT MCQ Questions for Class 10 Science Chapter 8 How do Organisms Reproduce? with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided How do Organisms Reproduce? Class 10 Science MCQs Questions with Answers to help students understand the concept very well.

Q1. Assertion: In human beings, the female. play a major role in determining the sex of the offspring.
Reason: Women have two X chromosomes.

(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.

(d) A is false but R is true.

Q2. Assertion: In male reproductive system, transport of sperm takes place in a fluid which also provide nutrition.
Reason: Protective glands and seminal vesicles secret in the vas deferens.

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

Q3. A pair of duct arising from testis, which carry sperms are

(a) fallopian tube
(b) vas deferens
(c) oviduct
(d) urethra

(b) vas deferens

Q4. Many unicellular organisms reproduce by the process of

(a) fission
(b) ovulation
(c) regeneration
(d) non-disjunction

(a) fission

Q5. When a sperm is deposited into the vagina which route does it travel?

(a) Vagina ? Oviduct ? Uterus ? Cervix
(b) Vagina ? Ovary ? Uterus ? Oviduct
(c) Vagina ? Cervix ? Uterus ? Oviduct
(d) Vagina ? Uterus ? Cervix ? Oviduct

Q6. Which among the following is not the function of testis at puberty ?

A) Formation of sperms
B) Releasing testosterone
C) ovulation
D) release of seminal fluid

C) ovulation

Q7. Length of the pollen grain depends upon the distance between __.

A) pollen grain and upper surface of stigma
B) pollen grain on upper surface of stigma and ovule
C) pollen grain in anther and upper surface of stigma
D) upper surface of stigma and lower part of style

B) pollen grain on upper surface of stigma and ovule

Q8. Variations occur as a result of

(a) asexual reproduction
(b) vegetative propagation
(c) sexual reproduction
(d) regeneration

Q9. Fertilisation occurs in human female when the sperms and ovum reach simultaneously at

(a) fallopian tube
(b) uterus
(c) vagina
(d) cervix

(a) fallopian tube

Q10. AIDS is a sexually transmitted disease caused due to an infection by a

(a) bacteria
(b) protozoa
(c) virus
(d) Plasmodium

Q11. In the list of organisms given below, those that reproduce by the asexual method are

(i) banana
(ii) dog
(iii) yeast
(iv) Amoeba

(a) (ii) and (iv)
(b) (i), (iii) and (iv)
(c) (i) and (iv)
(d) (ii), (iii) and (iv)

(b) (i), (iii) and (iv)

Q12. Which of the following is the correct sequence of events of sexual reproduction in a flower?

(a) pollination, fertilisation, seedling, embryo
(b) seedling, embryo, fertilisation, pollination
(c) pollination, fertilisation, embryo, seedling
(d) embryo, seedling, pollination, fertilisation

Q13. Offspring formed by asexual method of reproduction have greater similarity among themselves because

(i) asexual reproduction involves only one parent
(ii) asexual reproduction does not involve gametes
(iii) asexual reproduction occurs before sexual reproduction
(iv) asexual reproduction occurs after sexual reproduction

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)

(a) (i) and (ii)

Q14. Characters that are transmitted from parents to offspring during reproduction show

(a) only similarities with parents
(b) only variations with parents
(c) both similarities and variations with parents
(d) neither similarities nor variations

Q15. In Spirogyra, asexual reproduction takes place by

(a) breaking up of filaments into smaller bits
(b) division of a cell into two cells
(c) division of a cell into many cells
(d) formation of young cells from older cells.

(a) breaking up of filaments into smaller bits

Q16. Which among the following diseases is not sexually transmitted?

(a) Syphyllis
(b) Hepatitis
(c) HIV-AIDS
(d) Gonorrhea

(b) Hepatitis

Q17. The period during adolescence when the reproductive tissues begin to mature is called

(a) ovyfetion
(b) puberty
(c) germination
(d) propagation

(b) puberty

Q18. Which of the following is not an artificial method of vegetative propagation?

(a) Cutting
(b) Layering
(c) Budding
(d) Grafting

Q19. There is a greater possibility for the evolution of a new species in organisms which reproduce by

(a) binary fission
(b) budding
(c) fertilisation
(d) regeneration

Q20. The normal duration of menstrual cycle is

a) 7 – 8 days
b) 13 – 15 days
c) 3 – 4 days
d) 28 days

d) 28 days

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Q1. Assertion: In human beings, the female. play a major role in determining the sex of the offspring.Reason: Women have two X chromosomes.

Q2. Assertion: In male reproductive system, transport of sperm takes place in a fluid which also provide nutrition.Reason: Protective glands and seminal vesicles secret in the vas deferens.