Unit 6: Mod 53

X chromosome

The same sex chromosome found in both male and females female typically have two males typically have one

Y chromosome

The same sex chromosome typically found only in males

Testosterone

The most important male sex hormone both males and females have it, but the additional one in males stimulates the growth of the male sex organs during the fatal period and the development of the male sex characteristics during puberty

Primary sex characteristics

The body structures (ovaries, testes, and external genitalia )that makes sexual reproduction possible

Secondary sex characteristics

Non-reproductive sexual traits, such as a female, females breasts and hips, males voice quality, and body hair

Spermarche

The first ejaculation in males marking the beginning of sperm production and reproductive capability that usually occurs during puberty between the ages of 11 and 15

Menarche

The first menstrual period

Intersex

A condition present at birth due to unusual combinations of male and female chromosomes, hormones, and anatomy, possessing biological sexual characteristics of both sexes

AIDS(Acquired immune deficiency syndrome

A life-threatening sexually transmitted infection caused by the human immunodeficiency virus (HIV) it deplete the immune system, leaving the person vulnerable to infections

Sexual orientation

Our enduring sexual attraction usually towards members of our own sex(Homosexual orientation) Or other sex(Heterosexual orientation); Include their attractions toward both sexes(Bisexual orientation)