Question

state one genetically diff btw eggs and sperms of humans . what is this consequences??

Answer 1

Its very easy 
See we know that a sperm is a male gamete and an egg is a female gamete.
Both egg and sperm are germ cells.And a female germ cells contains chromosome XX where as a sperm contains Chromosome set Xy. This is the basic difference between an egg and a sperm.
Its consequences are simple  every new born child inherits a X chromosome from the mother whereas an x or y chromosome can be inherited by the child from the father.Thus the chromosome inherited from the father determines whether it will be a girl or a boy
Hope u got your answer

Answer 2

eggs
-are produced in females
-contain only X chromosomes

sperms
-are produced in males
-contain both X and Ychromosomes

-if a sperm carrying X chromosome fertilized with an ovum containing X chromosome then the child born will be a girl
- if a sperm carrying Y chromosome fertilized with an ovum containing X chromosome then the child born will be a boy
-thus sperms determine the sex of a child