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Which bases pair in DNA?
In the simulation below, build the strand that is complementary to the one shown. In this case,
you are not replicating the strand but completing it. - Answers Thymine
Adenine
Guanine
Cytosine
Cytosine
Thymine
Thymine
Adenine
Guanine
Thymine
To continue, click on the image that you think best represents how DNA normally looks in the
cell. - Answers First image
Looking at the images, how many chromosomes are there in a typical human? - Answers 46
What do you notice about the chromosomes in both images? - Answers They come in pairs
Why are chromosomes a poor way to think of how DNA is normally stored? - Answers DNA only
looks like this during replication
The top image, called a karyogram or karyotype, is from a human female, while the bottom one
is from a human male. What major difference do you notice? - Answers The male has a set of
mismatched chromosomes
Thinking back to what you learned about genetics, what do the colored bands on the
chromosome represent? - Answers Genes
What do the images pointing to each colored band represent? - Answers Phenotypes
From your exploration of DNA structure and biological macromolecules, what do you recall is
the function of DNA in the cell? - Answers Information storage