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

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

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.

Biology & Microbiology

For the biogeochemical cycles of the following elements, which does NOT have an atmospheric cycle?

A) carbon B) phosphorus C) sulfur D) nitrogen

Biology & Microbiology