Question

The school nurse is presenting a lecture to adolescents to teach them how conception occurs. Which statement by the nurse would accurately describe this process?

Answer 1

Answer:

-"Conception usually occurs when the ovum is in the outer third of the fallopian tube."

Explanation:

Conception is the process of fertilization of ovum and sperm forming a zygote. The sperm cells from male determines the sex of the fetus. An ovum carries an X chromosome, whereas, the sperm may carry either X or Y chromosome. If an X chromosome fertilizes with the ovum, a female child is born and if a Y chromosome fertilizes with the ovum, a male child is born. Conception occurs when the ovum is in the outer third of Fallopian tube and aids the fusion with sperms coming up into the Fallopian tube.

Answer 2

Answer:

Right answer: Conception usually occurs when the ovum is in the outer third of the fallopian tube

Explanation:

The first option is wrong: "Human life begins with the union of two cells: the zygote and the sperm." Because human life begins with the union of the ovum and the sperm which is then called zygote. The second option is wrong: "At the time of conception, the ovum determines the sex of the baby."  Ii is actually the sperm what determines the sex. The third option is wrong too: "The ovum carries the Y chromosome, and the sperm carries an X or Y chromosome." Actually the ovum carries X chromosome.