The microbial source of cry genes used to make insect-resistant transgenic plants is ________
A) Thermus aquaticus
B) Agrobacterium tumefaciens
C) Bacillus thuringiensis
D) Escherichia coli
E) Saccharomyces cerevisiae
C
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The only body fluid that can transmit Hepatitis B virus is blood.
Answer the following statement true (T) or false (F)
In eukaryotic cells, transcription and RNA processing happens in/on_________.
a. plasma membrane b. Golgi apparatus c. smooth ER d. rough ER e. nucleus
If 15 percent of the nitrogenous bases in a sample of DNA from a particular organism is thymine, what percentage should be cytosine?
A) 30 percent B) 35 percent C) 70 percent D) 15 percent E) 40 percent
Hormones regulate reabsorption in which region of the kidney tubule system?
A) Proximal tubule B) Glomerular capsule C) Distal tubule D) Glomerulus E) Nephron loop