What color will the colonies of lactose fermenting bacteria appear when grown on MacConkey agar?

A) Red
B) Pink
C) White
D) Colorless


B) Pink

Biology & Microbiology

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Which of the following treatments would enhance the level of the Pfr form of phytochrome?

A) exposure to far-red light B) exposure to red light C) a long dark period D) inhibition of protein synthesis E) synthesis of phosphorylating enzymes

Biology & Microbiology

Crick and his colleagues proposed that the genetic code consists of a series of blocks of information, called ______, each corresponding to one amino acid in an encoded protein.  

A.  alleles B.  codons C.  genes D.  polypeptides

Biology & Microbiology

What are the potential advantages of lysogeny compared to lysis for a temperate virus?

What will be an ideal response?

Biology & Microbiology

When a protein is composed of more than one polypeptide chain, the arrangement of the chains is called the ________ structure.

A. primary B. secondary C. tertiary D. quaternary

Biology & Microbiology