For what purpose is a researcher likely to shoot plant cells with a gene gun?
A) to kill the cell
B) to introduce new DNA into the chloroplast genome
C) to introduce a mutation in the nuclear genome
D) to add a transgene to the mitochondrial genome
B) to introduce new DNA into the chloroplast genome
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Answer the question using the accompanying figure. Water balance is maintained by the structures labeled ____
a. 1 and 3 b. 5 and 9 c. 7 and 8 d. 6 and 9 e. 1 and 6
Which of the following is the correct
complementary bonding of nitrogen containing bases in DNA?
a. adenine and cytosine. b. adenine and guanine. c. cytosine and thymine. d. guanine and cytosine. e. guanine and thymine.
Which of the following is an example of the second law of thermodynamics?
a. Conversion of the energy in sunlight into glucose b. The use of gasoline to propel your car c. ATP activation of a proton pump. d. A light bulb heats up after use e. A nuclear reactor lights up the city.
What structure contains the main information storage system of eukaryotes?
A. nucleolus B. nucleoplasm C. chloroplast D. nucleus