Olympiad – Class X – Science - Bio - Reproduction

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Question - 1

Which of the following is not characteristic feature of sexual reproduction

  • A Sexual reproduction involves the fusion of two dissimilar reproductive cells.
  • B Sexual reproduction is observed in most organisms.
  • C Fertilization may take place inside or outside the body of the female.
  • D The offspring represents the characteristics of only one parent.

Question - 2

Which of the following is NOT an example of asexual reproduction?

  • A Budding in hydra
  • B Binary fission in amoeba 
  • C Formation of spores in ferns
  • D Reproduction in earthworms

Question - 3

In which of the following labelled parts does ovulation, fertilization and implantation occur?

  • A Ovulation Fertilization Implantation W X Y  
  • B Ovulation Fertilization Implantation Z W X  
  • C Ovulation Fertilization Implantation Y Z W  
  • D Ovulation Fertilization Implantation X Y Z  

Question - 4

Which of the following parts within the uterus prevents the mixing of the blood of the foetus with that of the mother?

  • A Umbilical cord
  • B Uterus wall
  • C Placenta
  • D Water sac

Question - 5

Which of the following represents W,X,Y and Z?

  • A W X Y Z Gamete Ovary Foetus Zygote  
  • B W X Y Z Sperm Ovary Zygote Foetus  
  • C W X Y Z Sperm Uterus Foetus Baby  
  • D W X Y Z Gamete Fallopian tube Zygote Baby  

Question - 6

Identify in the given figure W, X,Y and Z.

  • A W X Y Z Placenta Foetus Amniotic fluid Foetu membrane
  • B W X Y Z umbilical cord embryo uterus vagina  
  • C W X Y Z Placenta foetus uterus foetal membrane  
  • D W X Y Z Umbilical cord zygote amniotic fluid cervix  

Question - 7

Where does the fertilization of the female egg usually occur in human beings?

  • A Vagina
  • B Uterus
  • C Ovary
  • D Fallopian tube

Question - 8

Which of the following are the functions of amniotic fluid?

  • A Only (i) and (ii)
  • B Only (i) and (iii)
  • C Only (ii) and (iii)
  • D All the three

Question - 9

Which of these statements about the reproductive system of a plant is NOT true?

  • A The male organs are the stamens.
  • B The anthers produce female gametes.
  • C The male gametes are present in the pollen grains.
  • D A male gamete from a pollen grain fertilize a female gamete in an ovule.

Question - 10

Which of the following is true about the use of the nectary in a flower?

  • A Supplies sugar for the growth of the pollen tubes
  • B Supplies a lubricant for the pollen tubes to enter the ovules
  • C Gives a pleasant smell to spread in air
  • D Produces a sweet liquid to attract animals