A Nurse Is Planning to Teach the Parents of a Child

question 17

Multiple Choice

A nurse is planning to teach the parents of a child with cystic fibrosis how the disease is manifested. Which of the following statements is the best explanation?

• A)"While all people carry the gene for cystic fibrosis, those who develop the disease have a mutation in that gene."
• B)"A small percentage of the general population carries the gene for cystic fibrosis.If two carriers have children, then 25% of those children will develop the disease."
• C)"One in four people carry the gene for cystic fibrosis.If two carriers have children, then 25% of those children will develop the disease."
• D)"Some people carry the gene for cystic fibrosis.Of those carriers, one in four will develop the disease."

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Definitions:

Implantation

The process by which a developing organism becomes attached to the uterus.

Cleavage

A series of mitotic cell divisions that transform a zygote into a blastocyst.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA.

Mitotic Cell Divisions

A process where a single cell divides into two identical daughter cells, each with the same number of chromosomes as the parent cell, essential for growth and repair.