Fluid entering which nephron portion is more dilute than normal body fluids?
a. Bowman’s capsule
b. proximal tubule
c. descending limb of loop of Henle
d. ascending limb of loop of Henle
e. collecting ducts
ANSWER: e
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Spina bifida is one of the most prevalent of human birth defects. The defect usually involves the spinal cord or the spinal canal opening to the outside of the body. Spina bifida results from problems during the formation of the _____
A) neural tube B) gastrula C) notochord D) somites E) blastula
Which of the following statements about eukaryotic gene expression is true?
a. Transcription occurs only within the nucleus. b. Transcription occurs after protein translation. c. Translation occurs in the nucleolus. d. Ribosomes translate tRNA into protein.
A woman is diagnosed with the genetic disease Huntington’s disease, a rare defect caused by an autosomal dominant allele. The chance for any one of her eggs to carry the gene is
1.dependent on the sex of the child. 2.1 out of 3. 3.dependent on the genotype of the woman. 1.3 out of 4. 4.0.
Parasites are always transmitted between hosts via an intermediate vector organism
Indicate whether the statement is true or false