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[bochum]

1. In 1964, Marshall Nirenberg broke the genetic code by showing that UUU is the mRNA codon for the amino acid
(a) glycine.
( tryptophan.
© valine.
(d) threonine.
(e) none of these.

2. The virulence of pneumococcus is associated with its
(a) chromosome.
( ribosome.
© capsule.
(d) lysosomes.
(e) none of these.

3. DNA was first discovered by
(a) Feulgen.
( Griffith.
© Mendel.
(d) Miescher.
(e) none of these.

4. The eukaryotic chromosome contains
(a) DNA.
( protein,
© RNA.
(d) nucleosome spools.
(e) all of these.

5. There are three hydrogen bonds between complementary adenine and thymine bases.
(a) True ( False

6. One complete coil of the DNA helix is 10 bases long.
(a) True ( False

7. A significant piece of data influencing Watson and Crick was the x-ray diffraction photographs of B-DNA taken by Rosalind Franklin.
(a) True ( False

8. The two helical strands of DNA are held together by covalent bonds.
(a) True ( False

9. DNA polymerase is involved in the formation of mRNA.
(a) True ( False

10. Meselson and Stahl showed clearly that DNA replication was semiconservative.
(a) True ( False

Edited by bochum, 05 September 2011 - 03:15 AM.

[bob1]

So what do you think are the answers? Most people won't help you answer questions unless you demonstrate that you have made some effort to answering them yourself.