Explain the mechanism of heridity changes.

Asked by Ampra1952 | 6th Jun, 2019, 03:18: PM

Expert Answer:

  • Heredity is the passing on of traits from parents to their offspring.
  • These changes are passed on because of DNA and crossing over of genes.
  • The traits that an organism possess are present because of their DNA. Their DNA has the information to express those traits/characterstics.
  • In human beings, there are 46 chromosomes or 23 pairs of chromosomes, one from each parent.
  • During gamete formation, the gamete takes one chromosome from each pair.
  • When two such gametes having a single set of genes combine together, they restore the normal diploid number of chromosomes in the progeny.
  • This is the mechanism of inheritance of traits. 

Answered by Sheetal Kolte | 7th Jun, 2019, 11:28: AM