The process of gamete formation is accomplished by ____
a. oocytosis
b. fertilization
c. meiosis and mitosis
d. mitosis only
e. meiosis only
ANSWER: c
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During inspiration (a.k.a. inhalation) of air into the lung of a mammal
A. the intercostal muscles relax. B. the chest cavity has a positive pressure. C. the diaphragm contracts. D. the diaphragm moves upward. E. the rib cage moves down.
Recently, a gene located on chromosome 3 in humans, FHIT, has been shown to be associated with ________
A) Huntington disease B) several types of cancer C) "mad-cow" disease D) XYY/XY mosaicism E) Klinefelter syndrome
The cleavage pattern is influenced by the amount of __________ and its distribution in the egg.
A. albumen B. yolk C. shell D. mRNA
The coronary arteries that bring blood to the heart branch off from the:
A) aorta. B) pulmonary artery. C) vena cava. D) pulmonary vein.