Bio Beyond- Genetic Replication Review Questions and Answers

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. 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. First image Looking at the images, how many chromosomes are there in a typical human? 46 What do you notice about the chromosomes in both images? They come in pairs Why are chromosomes a poor way to think of how DNA is normally stored? 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? 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? Genes What do the images pointing to each colored band represent? Phenotypes From your exploration of DNA structure and biological macromolecules, what do you recall is the function of DNA in the cell? Information storage Which of the following characteristics are different between prokaryotic and eukaryotic chromosomes? Shape