Question 1 Hershey and Chase\'s experiment... was intended to demonstrate that t

Question

Question 1
Hershey and Chase's experiment...

was intended to demonstrate that the protein case of a bacteriophage remained outside a bacterial cell after infection.

involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with 32P.

involved finding radioactivity inside bacteria infected with bacteriophage having DNA labelled with 35S.

involved finding radioactivity inside bacteria infected with bacteriophage having protein labelled with 32P.

involved finding radioactivity inside bacteria infected with bacteriophage having protein labelled with 35S.
Question 2
During X-ray diffraction analysis, materials which consist of bonded atoms surrounded by empty space are bombarded by X rays. Which of the following is true with respect to this process?

The X rays pass straight through the material.

The X rays are blocked by atoms and pass straight through empty space.

The X rays are deflected by the atoms.

The X rays pass through empty space and bounce back off the atoms.

This technique analyzes changes in the wave-length of the X-rays which are deflected by the atoms.

am really confused with this two question. plaase help me understand. thank you very much.

Explanation / Answer

1. Hershey and Chase's experiment involved finding radioactivity inside bacteria infected with a bacteriophage having DNA labelled with 35S.

2. During X-ray diffraction analysis, materials which consist of bonded atoms surrounded by empty space are bombarded by X rays. This technique analyzes changes in the wavelength of the X-rays which are deflected by the atoms.

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