Nucleic Acid Structure, DNA Replication, and Chromosome Structure

Information

Replication

Transmission

Variation

Four criteria that genetic material must meet

Information

Criteria where genetic material must hold the information to produce an entire organism

Replication

Criteria where genetic material must accurately be copied

Transmission

Criteria where genetic material must be able to be passed from parent to offspring

Variation

Criteria where difference in genetic variation must account for the variation in living organisms

Protein has a more complex structure than DNA

Why protein was originally assumed to contain genetic material

Phosphodiester Bond

Bond between the sugar and phosphate groups of nucleotides

Negative

The overall charge that the phosphate group gives DNA

Cytosine and Thymine

Pyramidines (2)

Adenine and Guanine

Purines (2)

Cytosine and Guanine

Adenine and Thymine

Complementary base pairs

2, 3

Adenine and thymine are held together by ___ H-bonds, while cytosine and guanine are held together by _____ H-bonds

2, 3.4

DNA is about ____ nm across and _____ nm per complete spiral

Around 10

The number of base pairs per spiral

Major Groove

Where most proteins will bind to act on DNA