Oxygen binds more tightly to hemoglobin than does carbon monoxide, therefore, there is little competition between the two gases for binding sites on hemoglobin.

Indicate whether the statement is true or false.


Ans: False.

Biology & Microbiology

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Which gene is unique to the Y chromosome?

a. Tinman b. PAX6 c. SRY gene d. P53 e. Eyeless

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The primary virulence factor of Neisseria gonorrhoeae is ________.

A. a protease B. an exotoxin C. a hemolysin D. fimbriae E. an endotoxin

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From DNA x-ray diffraction data, it was determined that _____

a. the amount of adenine equaled the amount of thymine b. different species have different proportions of adenine and guanine c. nitrogen containing bases were arranged on the outside of the double helix structure d. the shape of the molecule could be a double helix e. the backbone of the double helix was held together by hydrogen bonds

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__________ are multicelled heterotrophs without cell walls.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology