Answer:
"The combination of sex chromosomes received from parents " .
Explanation:
Sex determination : The process by which sex of a child is determined .
Parental generation :
Mother Father
XX XY (sex chromosomes )
X,X X,Y (gametes )
First filial generation :
X Y
X XX XY
X XX XY
If XX is formed then it is girl and if XY is formed then it is boy .
Conclusion :
- we concluded that there is 50-50 percent chance of boy or a girl .
- Sex of a child is determined by father because father produce different gametes .
There is a change in amino acids sequence causes these mutations, If there is an error in the order of amino acids during the process of multiplication, there is a special enzyme to repair errors
Double fertilization is a complex fertilization mechanism of flowering plants. This process involves the joining of a female gametophyte with two male gametes. It begins when a pollen grain adheres to the stigma of the carpel, the female reproductive structure of a flower.
The answer is Fist hope I helped
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