how many autosomes does a human primary spermatocyte have
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Reproductive System Exam Quizlet

1. How many autosomes does a human primary spermatocyte have?

Correct answer: B

Rationale: A human primary spermatocyte has 44 autosomes. Autosomes are chromosomes that are not involved in determining an individual's sex. In humans, there are a total of 46 chromosomes in a somatic cell, with 22 pairs of autosomes and one pair of sex chromosomes. Therefore, the correct answer is 44 autosomes, making choice B the correct answer. Choices A, C, and D are incorrect as they do not represent the accurate number of autosomes in a human primary spermatocyte.

2. What structure lies posterior to the vagina?

Correct answer: B

Rationale: The correct answer is B: Rectum. The rectum is located posterior to the vagina in the pelvic cavity. The Pouch of Douglas (choice A) is a peritoneal pouch located between the rectum and the uterus. The perineal body (choice C) is a fibrous structure located between the vagina and the anus. Structures of the vulva (choice D) are external genital structures surrounding the vaginal opening, not posterior to the vagina.

3. Which hormone is primarily responsible for the development of female secondary sexual characteristics?

Correct answer: C

Rationale: Estrogen is primarily responsible for the development of female secondary sexual characteristics. Progesterone, while important in the menstrual cycle and pregnancy, is not primarily responsible for secondary sexual characteristics. Testosterone is the primary male sex hormone. Oxytocin is involved in labor, lactation, and social bonding, but not in the development of female secondary sexual characteristics.

4. Which group of the population does the Maternal nutrition component of IRH improve?

Correct answer: A

Rationale: The correct answer is A: Women and adolescent girls. Maternal nutrition programs typically target women of reproductive age and adolescent girls to improve their health outcomes. Option B is incorrect because maternal nutrition initiatives extend beyond just pregnant women. Option C is incorrect because the focus is not on all children under five but specifically on women and adolescent girls. Option D is incorrect because the program does not target all adolescents, but rather women and adolescent girls.

5. What is the most common symptom in all clinical types of abortion EXCEPT:

Correct answer: C

Rationale: The correct answer is C. 'Show' is not a common symptom in all types of abortion. Lower abdominal pain, per vaginal bleeding, and backache are common symptoms associated with abortion. Lower abdominal pain may result from uterine contractions, per vaginal bleeding is a typical presentation, and backache can be a symptom due to the process of abortion. 'Show' refers to the mucus plug that blocks the cervix during pregnancy and is not a typical symptom of abortion.

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