The nurse is presenting a conference on gene dominance. What does the nurse report as the percentage of children carrying the dominant gene if one parent has a dominant gene and the other parent does not?

25%

50%

75%

100%

Answer and Explanation

The Correct Answer is B

A. If only one parent carries the dominant gene, the probability of a child inheriting it is not 25%, as this would imply a recessive-recessive pairing.

B. In a scenario where one parent is heterozygous for a dominant gene and the other has two recessive alleles, each child has a 50% chance of inheriting the dominant gene. This outcome is based on Mendelian inheritance.

C. A 75% chance would occur in a scenario involving two heterozygous parents, which is not described here.

D. 100% inheritance occurs only when one parent is homozygous dominant, which is also not indicated in this case.

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Correct Answer is C

Explanation

A. Glycerin suppositories can be used for occasional constipation, but they should not be used regularly during pregnancy as they can cause irritation or dependency.

B. Laxatives should be avoided during pregnancy unless recommended by the healthcare provider, as some laxatives can stimulate uterine contractions or cause dehydration.

C. Increased cellulose and fluid in the diet is the most appropriate recommendation. A high-fiber diet (e.g., fruits, vegetables, whole grains) combined with plenty of fluids helps soften stools and relieve constipation, a common issue during pregnancy due to hormonal changes.

D. Posture has minimal impact on constipation, so it's not a primary intervention for this issue.

A. Drinking extra milk during pregnancy allows breasts to produce adequate amounts of milk. B. Supplementing breastfeeding with formula allows the infant to receive adequate nutrition. C. Breast size can be increased with exercise. D. Milk is produced in ducts and lobules regardless of breast size.

Correct Answer is D

Explanation

A. Drinking extra milk during pregnancy does not directly impact milk production. The body produces milk based on demand, not by consuming additional milk.

B. While formula supplementation may be necessary in some cases, it does not directly address the mother's ability to produce sufficient milk. It is important to focus on breastfeeding techniques and frequency to support milk production.

C. Breast size is not a determining factor for successful breastfeeding. Exercises will not increase breast size or enhance milk production significantly.

D. Milk production occurs in the mammary glands, specifically in the ducts and lobules, which are not dependent on breast size. Even women with smaller breasts can produce enough milk to exclusively breastfeed, as long as the demand and milk removal are properly managed.

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The nurse is presenting a conference on gene dominance. What does the nurse report as the percentage of children carrying the dominant gene if one parent has a dominant gene and the other parent does not?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is pregnant and reports constipation. Which of the following recommendations should the nurse make?

Correct Answer is C

Explanation

A mother is anxious about her ability to breastfeed after her child is born because of her small breast size. What would be an important point to teach this mother?

Correct Answer is D

Explanation

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