The semicircular canals are:
a. empty
b. filled with gas
c. filled with a liquid
d. small bones in the ear
e. passageways for nerves
c
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Indicate whether the statement is true or false
Which of the following statements is false?
A) An individual with Klinefelter syndrome generally has one Barr body. B) An individual with Turner Syndrome has no Barr bodies. C) In a cell with X chromosomes lacking the XIC, there is still X inactivation. D) Dosage compensation is accomplished in humans by inactivation of the Y chromosome. E) A typical XX human female has one Barr body.
In a dihybrid cross, if heterozygotes are crossed, what fraction of the offspring is expected to have both the dominant phenotypes?
A) 1/16 B) 1/3 C) 2/3 D) 3/16 E) 9/16
Which organic molecules are primarily used to release energy during aerobic respiration?
A carbohydrates and lipids B nucleic acids and lipids C amino acids and nucleic acids D enzymes and carbohydrates