What are the two major parts of a cell's interior?
a. the intracellular fluid and matrix
b. the nucleus and plasma membrane
c. the nucleus and cytoplasm
d. the DNA and cytoplasm
e. the DNA and RNA
c
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The number of sperm cells that form from a primary spermatocyte is
A. 4. B. 100. C. 16. D. 46.
Genetic disorders like Down syndrome are caused by ________.
A. genes on the X-chromosome; females express this less often than males B. a dominant allele, that if passed on by one or both parents, causes disease C. errors in meiosis that cause a gamete to receive an extra chromosome D. a recessive allele, that if passed on by both parents, causes disease
Helicobacter pylori is a bacterium associated with ________.
A. hiatal hernia B. acid reflux C. peptic ulcers D. pancreatitis
Proprioception is defined as:
A) a person's ability to sense light touch. B) the loss of thermoregulatory function distal to an injury. C) a person's awareness of pain and the ability to localize it. D) the ability to perceive the position and movement of one's body.