Question

After ejaculation, along which route does a male gamete travel to fuse with an egg?

Answer 1

Answer:

If semen is ejaculated into a female's vagina, millions of sperm "swim" up from the vagina through the cervix and uterus to meet the egg in the fallopian tube. It takes only one sperm to fertilize the egg.

Answer 2

Millions of sperm "swim" up from the vagina, past the cervix and uterus, to reach the egg in the fallopian tube when semen is ejaculated into a female's vagina.

• The egg can be fertilised with only one sperm.
• A zygote is a fertilised egg with 46 chromosomes, half from the egg and half from the sperm.
• A new person can be generated by combining genetic material from the male and female.
• As it grows in the female's uterus, the zygote splits again and again, eventually growing into an embryo, a foetus, and finally a newborn baby during the length of the pregnancy.