Heat-killed S form Streptococcus extract treated with proteases is mixed with live R form Streptococcus cells and injected into living mice. What is most likely to happen?

1.	The mice would live.
2.	The mice would die.
3.	The mice's blood would have dead R cells.
4.	A new strain of Streptococcus will be present in mice.

Nucleic acids are polymers of:

Transcriptionally, active chromatin is termed as:

In a strand of nucleic acid, two nucleotides are linked together by:
1. 3’ – 5’ phosphodiester bond
2. 5’ – 3’ phosphodiester bond
3. 2’ – 5’ phosphodiester bond
4. 3’ – 1’ phosphodiester bond

In Griffith's experiment, which of the following bacterial strains was capable of causing pneumonia in mice?

What facilitates the opening of the helix during the elongation step of transcription?

The repressor of the lac operon is:

The base pairing in a double stranded DNA is correctly described as:

In a transcription unit, RNA polymerase binds to:

The distance between a base pair in the DNA double helix is approximately: