At the end of transcription,which cells add a 5' cap to the DNA?
What will be an ideal response?
Ans: Eukaryotes
Biology & Microbiology
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A lac Y- mutant would
A) be constitutive. B) no longer be induced by the presence of lactose. C) not have ?-galatosidase activity. D) transport lactose into the cell effectively. E) metabolize lactose.
Biology & Microbiology
What is the key concept addressed by the question?
What will be an ideal response?
Biology & Microbiology
The ____ of an atom have a negative charge
a. nuclei b. protons c. neutrons d. ions e. electrons
Biology & Microbiology
When phospholipid molecules are placed in water
A. the hydrophobic ends of the molecules exclude water from their surroundings. B. hydrophilic fatty acid ends mix well with the water. C. a single-layered membrane is formed. D. All of the choices occur.
Biology & Microbiology