Only men have them.
A bi-conditional statement is one which says that if any one of two statements is true, the other is true, too. It generally takes the form, X is true if and only if Y is true, or X is equivalent to Y, where X and Y are simpler statements.
Yes
it is used often in the context: if(condition is true) {following statements will be executed}; else[meaning that if the above condition is not true] {following statements will not be executed} for example: if(x == 3) {cout<< "condition is true"; y=4;} else {cout<< "condition is not true"; y=x-1}
X and Y are copies of the chromosomes that determine gender. If someone has two x chromosomes they are female, while if they have one x and one y chromosome they are male. There is a rare disease where someone has one x and one y chromosome (known as XXY males) and these individuals display characteristics of both genders.
If you mean straight line equation: y = mx+b then m is the slope and b is the y intercept
The genes carried on the X and Y chromosomes are called your "sex chromosomes".
You have pair of X chromosomes in case of females. You have a pair of X and Y chromosomes in case of male. This is true for all the mammals, most probably.
This is True. Chromosomes other than sex chromosomes are autosomes.
Chromosomes that are not X or Y are called homologous chromosomes and autosomal chromosomes. The first 22 pairs of human chromosomes are autosomal.
All chromosomes that are not either X or Y are called autosomes.
The X and Y chromosomes are called the "Sex Chromosomes". Both the X and Y chromosome are part of the "sex-determining system" that helps determine the sex characteristics in humans. In the system, females have two X chromosomes (XX) while males have an X and a Y chromosome (XY).