Tuesday January 15th
DNA is made up of nucleotides. What are the three parts that make up a nucleotide?
A sugar (deoxyribose) a phosphate group and one of four nitrogen bases.
Of these, which two make up the backbone? The sugar and the phosphate groups
Which make up the “code” that writes our instructions? The nitrogen bases
There are 4 different “codes” in DNA, what are they and
how do they pair up? Adenine, Guanine, Thymine and Cytosine
Adenine and Tymine (A and T) pair up
Guanine and Cytosine (G and C) pair up
When during the cell cycle does DNA replicate?
During the S-Phase (Synthesis phase)
After this we watched the first part of the following crash course (up until he starts talking about RNA) followed by a a worksheet that summarizes what we have learned so far about chromosomes, genes, DNA and the cell cycle. This is due tomorrow!!
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