How many clones of Trakr, the Ground Zero
hero dog, were delivered to his owner in July
2009?
a. 2
b. 3
c. 4
d. 5
e. 6
D
You might also like to view...
Final protein refinements, storage, and packaging occur ________.
A. in the rough endoplasmic reticulum B. in the smooth endoplasmic reticulum C. in the Golgi apparatus D. in the cytoplasm
Why is it beneficial to plants that soil particles have negatively-charged surfaces?
A. It helps maintain the water potential of the soil. B. They attract positively-charged ions and prevent them from being washed deep into the soil. C. Negatively-charged ions are pushed towards the roots. D. Toxic metals are trapped and kept away from the plants. E. They capture negatively-charged ions.
The Ti plasmid is crucial to genetic engineering in plants. The key feature of the Ti plasmid is that it
A) uses the CRISPR/Cas system to edit the plant genome. B) only replicates in bacterial cells. C) uses zinc finger nucleases (TALENs) to edit the plant genome. D) leads to insertion of a part of the plasmid DNA into the plant cell chromosomal DNA. E) acts as an artificial chromosome within plant cells.
For the biogeochemical cycles of the following elements, which does NOT have an atmospheric cycle?
A) carbon B) phosphorus C) sulfur D) nitrogen