Which of the following is true of the process of meiosis?
Reduces the chromosome number from 46 to 23
Occurs in every cell in the body except the egg cell and sperm cell
Occurs in the ovum but not the sperm
creases the chromosome number from 23 to 46
The Correct Answer is A
A. Reduces the chromosome number from 46 to 23: Meiosis produces gametes (egg and sperm) with half the genetic material.
B. Occurs in every cell in the body except the egg cell and sperm cell: That describes mitosis.
C. Occurs in the ovum but not the sperm: Meiosis occurs in both egg and sperm cells.
D. Increases the chromosome number from 23 to 46: That happens at fertilization, not during meiosis.
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Related Questions
Correct Answer is C
Explanation
A. Is a gonadotropin: Gonadotropins include FSH and LH, not oxytocin.
B. Is secreted by the kidneys: Oxytocin is secreted by the posterior pituitary.
C. Stimulates the uterine muscle to contract, thereby assisting in labor: Oxytocin is key in labor and delivery.
D. Stimulates kidneys to reabsorb Na+ and water: That is the role of aldosterone and ADH, not oxytocin.
Correct Answer is ["A","B","D","E"]
Explanation
A. Adrenal glands: Secrete cortisol, aldosterone, adrenaline-endocrine glands.
B. Pancreas: Has both endocrine (insulin, glucagon) and exocrine functions.
C. Duodenum: Part of the digestive system, not endocrine.
D. Ovaries: Secrete estrogen and progesterone-endocrine function.
E. Hypothalamus: Regulates the pituitary gland- key endocrine controller.
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