genetics (human fertility)
TRANSCRIPT
Follicle-Stimulating Hormone
FSH controls sperm production
Name Function
sperm tubesperm travel along it
urethrasperm & urine released through it
testes produces sperm
penisfor placing sperm into female
Healthy semen is a sign of good health in men. It also contains sperm cells that can long survive the acidic environment within
the female genitalia..
The quality of sperm indicates its normality.
Responsible for forming the female shape including such factors as limiting muscle mass and height, as well as and
formation of the breasts.
Egg quality refers to how ready and able woman eggs are to become fertilized
As woman age, her eggs become weaker, and less able to form a healthy embryo. Eggs also begin to decrease in number, leaving fewer and fewer quality eggs available for fertilization. A woman of 40 typically has lower egg quality than a woman of 20
Egg quantity refers to the number of eggs that you have in your ovaries. At birth, each woman has about 1,000,000 eggs available for fertilization
The menstrual cycle is a term used to describe the sequence of events that occur within a
women’s body as it prepares for the possibility of pregnancy each month. A menstrual cycle is considered to begin on the first day of a period.
The average cycle is 28 days long; however, a cycle can range in length from 21 days to about
35 days
VIDEO
Inbreeding (Self-pollination)
Asexual Reproduction: No meiosis and no fertilization.
Step 1 – Find a partner
• we instinctively select mates who will enhance the survival of the species.
• Men are drawn to classically beautiful women-clear skin-bright eyes-shiny hair-good bone structure-red lips-rosy cheeks
Attitude
Love parental quality
women pick brains over brawn
higher education
The increased reproduction of those seen to have advantageous hereditary traits
aims to prevent those deemed physically, mentally or morally unfit to procreate
Role of eugenics in the society
If we can confine certain hereditary diseases, enhance intelligence, or even improve
character through the disproportionate reproduction of our best representatives, it will
tend to improve our quality of life and will prove conducive to the
survivability of the species.
Do the benefits of new genetic tools outweigh the
risks?
"normal appearing,"
aims to improve the outcome of a genetic
disease by altering the environment.