10th Class Science How do Organisms Reproduce?

  • question_answer 34)
      The number of chromosomes in parents and off springs of a particular species remains constant due to (a) doubling of chromosomes after zygote formation (b) halving of chromosomes during gamete formation (c) doubling of chromosomes after gamete formation (d) halving of chromosomes after gamete formation

    Answer:

                      (b) The number of chromosomes in parents and offsprings of a particular species remains constant due to halving of chromosome during gamete formation. The gametes are special type of cells which contain only half the amount of DNA as compared to normal cells of an organism. So, when a male gamete combines with a female gamete during sexual reproduction, then the new cell 'zygote' will have normal amount of DNA.


You need to login to perform this action.
You will be redirected in 3 sec spinner