How is DNA introduced into plants using the Ti plasmid?
a. The gene of interest remains in the Ti plasmid after the plasmid has transformed the plant, and the gene is
expressed in the plant.
b. The Ti plasmid inserts the gene of interest directly into the plant's nuclear DNA.
c. The entire Ti plasmid including the gene of interest is inserted into the plant’s nuclear DNA.
d. The Ti plasmid inserts the foreign DNA into the plant's chloroplast DNA.
e. The Ti plasmid inserts the foreign DNA into the plant's mitochondrial DNA.
ANSWER: b
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AMP-activated protein kinase (AMPK) is an enzyme that is activated by high levels of AMP in cells. If levels of AMP are high in cells, that means that levels of ATP are low. Once active, AMPK activates catabolic pathways and inhibits anabolic pathways in the cell. Why do you think that is the case? Choose the answer that best explains the role of AMPK
A. High levels of AMP indicate that there is a high amount of energy stored in the cell, thus activating catabolic pathways and inhibiting anabolic pathways are mechanisms to use stored energy. B. By inhibiting anabolic pathways, AMPK provides a mechanism to generate heat for the cell, which is important if AMP levels are high in the cell. C. By activating catabolic pathways, AMPK provides a mechanism to activate exergonic pathways, which is important if AMP levels are high in the cell. D. Activating catabolic pathways and inhibiting anabolic pathways will ultimately lead to higher consumption of ATP, which is important if AMP levels are high in the cell.
What other information is related to the question? Which information is most useful?
What will be an ideal response?
The most abundant gas in the atmosphere is
a. carbon dioxide. b. hydrogen. c. nitrogen. d. oxygen
All prokaryotes are in the domain ________.
A. Bacteria B. Archaea C. Prokarya D. Prokaryotes are in different domains.