Which of the following genotypes would result in a true-breeding stock?
A. AA or Aa or aa
B. Aa, but not AA or aa
C. AA, but not Aa or aa
D. Aa, but not AA or aa
E. AA or aa, but not Aa
E
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Although the domain Archaea contains many acidophilic organisms, there are still many others within the domain that grow well in environments with a neutral pH
Indicate whether the statement is true or false.
Mass quantities of a target DNA sequence can be obtained by ____
a. restriction endonuclease digestion only b. gene cloning only
c. PCR only d. restriction endonuclease digestion and PCR e. gene cloning and PCR
Which of the following is true for the mechanism of the 2Na+/glucose symporter?
A) Binding of 2 Na+ to the symporter open to the outside of the cell allows a glucose molecule outside the cell to bind. B) Binding of Na+ and glucose causes the symporter to open to the inside of the cell. C) Release of 2 Na+ ions to the inside of the cells causes release of the glucose molecule. D) Binding of 2 Na+ to the symporter on the inside of the cell causes the symporter to open to the outside of the cell and release of the Na+ ions. E) All of the above are steps in the mechanism.
The part of a mushroom that we eat is usually the reproductive structure that supports the fruiting body.
Answer the following statement true (T) or false (F)