Verified answer

1.Double helix of DNA was proposed by?

James Watson and Francis Crick

2.Potato is a modified _stem and radish is a modified _root.

3.Carbon dioxide and _methane are two green house gases.

The negative and positive charges with the DNA wouldn't go in a triple helix it would only work with a double helix

1) James Watson

2)

3) Methane

James Watson and Francis crick in 1953

http://www.essortment.com/all/dnascientists_rchz.h...

2) dnt unda stand the question

3. methane

1) Watson and Crick

2) Don't know

3) Methane or Halides I think

Francis Crick.

1)Watson n Crick

2)root n stem

3)Methane

watson and crick

dont know and

methane

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