What statement indicates a woman has correct information about oogenesis?
"Women have all of their ova at the time they are born."
"Women make fewer ova as they age."
"Ova production begins at birth and continues until puberty."
"New ova are made every month from puberty to climacteric."
The Correct Answer is A
A. Women have all of their ova at birth. Oogenesis, the process of egg development, occurs in the fetus, and women are born with all the eggs (ova) they will ever have. The number of eggs decreases over time.
B. Women make fewer ova as they age is correct in a sense, but the statement is misleading because the number of eggs actually decreases after birth, not through an ongoing process of "making fewer."
C. Ova production begins at birth and continues until puberty is incorrect. Ova are formed during fetal development, but no new eggs are produced after birth.
D. New ova are made every month from puberty to climacteric is incorrect. While ova mature and are released monthly during a woman's reproductive years, they are not newly made each month. The ovary contains a finite number of immature eggs at birth.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. It is true that the child’s sex can often be confirmed later in pregnancy, but at 8 weeks, it is typically too early to definitively determine the sex with an ultrasound.
B. At 8 weeks, it is usually not possible to determine the baby’s sex with ultrasound. The external genitalia are not fully developed at this stage.
C. No, the sex organs have not yet started to develop. This is the correct answer. The differentiation of the sex organs begins during the early stages of pregnancy, but they are not visible on ultrasound at 8 weeks.
D. The external genitalia start to become distinguishable a little later in pregnancy, but not as early as the 10th week, making this answer less accurate.
Correct Answer is B
Explanation
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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