A couple who does not have cystic fibrosis but are both heterozygous has already had three girls with cystic fibrosis,
and are hoping to have a normal child for their fourth. What are the chances that the fourth child will be a normal male?
a. 0
b. 1/8
c. 1/4
d. 3/8
e. 1/2
d
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People with type A blood have red blood cells that express one type of recognition protein, while those with type B
blood express a different recognition protein. People with AB blood express both recognition proteins. Why can a person with AB blood receive blood from a person with type A, but a person with type A blood cannot received blood from a person with type AB?
What will be an ideal response?Ultimately, for aerobic organisms, where does
the energy in ATP come from?
a. glucose b. pyruvate c. water d. NADPH e. sunlight
Proteins leaking out of damaged body cells activate ____, which results in a cascade of reactions that enhance
phagocytosis of damaged cells by white blood cells.
a. complement proteins b. inflammatory proteins c. PAMPs d. viral DNA e. killer T cells
Aerobic respiration, anaerobic respiration, and fermentation:a
are endergonic pathways. b. release free energy. c. require oxygen. d. are also known as organismic respiration. e. are anabolic pathways.