what is fertilization

The action or process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote is called Fertilization.

Fusion of male gametes(sperm) with the female gametes(ova) is known as fertilization.

The  first  step  in  the  process  of  reproduction  is  the  fusion  of  a  sperm  and  an  ovum.  For  this  to  happen,  millions  of  sperms  from  the  male  are  transferred  into  the  female  body.  The  sperms  swim  upto  the  oviduct  with  the  help  of  their  tails  and  reach  the  egg.  When  they  come  in  contact  with  the  egg,  one  of  the  sperms  may  fuse  with  the  egg.  Such  fusion  of  the  egg  and  sperm  is  called  fertilisation.  During  fertilisation,  the  nuclei  of  the  sperm  and  the  egg  fuse  to  form  a  single  nucleus.  This  results  in  the  formation  of  a  fertilised  egg  or  a  zygote.

the fussion of male n female gamets is called fertilisation

the fussion of male  & female gamets is called fertilisation

Fertilization is the process of the union of an egg and sperm. Let us study how fertilization takes place.

Whom does the new individual resemble – the father or the mother? The new individual shows characteristics present in both the father as well as the mother.

Fertilization takes place inside the body in dogs, cats, and human beings. This type of fertilization is known as internal fertilization.

But do you know that in some animals, fertilization takes place outside the body of the organism?

In animals such as frogs and fishes, the process of fertilization takes place outside the body. This type of fertilization is known as external fertilization. In external fertilization, both the male and the female release their gametes in water. The gametes then fuse in water and result in the formation of a zygote, which develops into a new individual.

Do you know how eggs of animals, in which external fertilization occurs, are protected?

Eggs of animals such as frogs are covered with jelly, which holds all the eggs together and also protects the eggs from the external environment.

Video(s) by teachers

the process in which male gamets and female gamets mixes in the female body and form zigote is known as fertlisation

WHEN SPERMS COME IN CONTACT WITH AN EGG, ONE OF THE SPERMS MAY FUSE WITH THE EGG. SUCH FUSION OF EGG & SPERM IS CALLED FERTILISATION.

 the fusion of male and female gamets is known as fertilization.

 the fusion a male gamete i.e. sperm and female gamete i.e. ovum is called fertilisation