pubic hair growth.
They are sometimes as interested in other males as in females....
Testosterone in males and estrogens in females
The primary sex characteristics are the genitalia. The secondary sex characteristics are those typical of males or females. Breasts, body shape, Adam's apple, voice pitch, hair growth, etc. are secondary sex characteristics.
Because males have XY configuration of sex chromosomes and females XX. So in xy situation even the recessive gene can express. That is why sex-linked characters in males are more common than females.
males
In humans, visible secondary sex characteristics include enlarged breasts of females and facial hair and adam's apple on males.
Females= Estrogen and in males= testosterone
The males and females in a pedigree are differentiated by their sex organs.
Both have 23 pairs including sex chromosomes. . Males have an X and Y sex chromosome and females have two X.
The two sex hormones are estrogen in females and testosterone in males. These produce what are called secondary sex characteristics. Breasts, menstrual cycles, enlarged sex organs,etc in females and facial hair, muscle mass, enlarged sex organs, etc in males
Red Green colorblindness is more prevalent in males but can occur in females as well.
Some examples would be: Males have facial hair while females do not. Females have breasts while males do not. Females tend to have wider hips than the males. Males tend to be slightly larger than the female.