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Quiz 1 Review

DNA structure and Replication

QuestionAnswer
What is DNA made of? DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and a nitrogen bases.
What does it structure look like? DNA is made of two strands, which are complementary, the two strands of DNA are connected by hydrogen bonds and twisted into a double helix structure.
What are the complementary base pairs in DNA? The complementary base pairs in DNA are adenine, guanine, cytosine, thymine.
When/why do cells need to make more copies of their DNA? During a growth spurt, when you are injured, when you are sick or ill, and during sexual reproduction.
How is DNA replicated? The double helix is unwound and each strand acts as a template for the next strand. Bases are matched to synthesize the new partner strands.
What makes DNA replication so fast?
What makes DNA replication accurate? Do mistakes ever happen when replicating DNA?
Created by: pressatojump