Question

!!! One Medal Question !!!

Answer 1

DNA molecule is composed of a double helix strand, along with a sugar phosphate backbone, and includes the four nitrogenous bases (adenine, Cytosine, guanine, and thymine)

Answer 2

http://www.chemguide.co.uk/organicprops/aminoacids/doublehelix.gif
with image

Answer 3

- Why is DNA replication said to be semi-conservative?
After the DNA replication, the parent strand from the actual previous DNA will create a daughter strand. The daughter strand has new bases but the parent strand has the same bases as before.

Answer 4

- Describe transcription.

DNA replication---->Transcription------>Translation
Transcription is when the DNA receives a message from the RNA plymerase to copy a single mRNA strand

Answer 5

here;s the description in details
http://biology.about.com/od/cellularprocesses/ss/Dna-Transcription.htm