which term refers to the filamentous material composed of dNA and associated proteins that is found in the nucleus of a cell?
a) chromatids
b) chromatin
c) chromosome
d) centrioles
b) chromatin
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A pregnant woman wants to know the approximate day her child was conceived. She knows the date of the start of her last menstrual period was March 4th. What does she need to do to calculate the date of conception from this point?
A. Add 14 days to that date B. Add 7 days to that date C. Add 38 weeks to that date D. She can't calculate the conception date with that information, only the expected due date
Which of the following are defined as soluble inorganic compounds whose ions will conduct an electric current in solutions?
A) catalysts B) electrolytes C) strong acids D) buffers E) steroid hormones
Which of the following is incorrect pertaining to the sacral plexus?
A) It is located on the posterolateral wall of the lesser pelvis. B) It is related to the anterior surface of the piriformis muscle. C) It is joined by the lumbosacral trunk. D) It may be compressed during parturition, resulting in lower limb pain. E) Most of its branches exit the pelvis through the lesser sciatic foramen.
The element that makes up the greatest percentage by weight in the body is
A) nitrogen B) potassium C) oxygen D) sodium