Term | Definition |
What is DNA made of, and what does its structure look like? | nucleotides make up DNA |
what does its structure look like? | strands connect to nitrogen bases. they connect to the sugar phosphate backbone connecting to the deoxyribose sugars, which connect to the phosphates. hydrogen bonds bind complimentary strands together, forming a double helix |
What are the complementary base pairs in DNA? | adenine, cytosine, guanine, thymine |
When do cells need to make more copies of their DNA? | for growth; injury, illness; puberty; meiosis; pregnancy; skin cells |
why do cells need to make more copies of their DNA? | to survive life, continue growing, healing, etc. |
How is DNA replicated? | semi-conservatively: the parent and daughter strands combine; |
What is the type of strand that DNA is made with? | Complementary |
What are the sequences of DNA? | AT (apple tree)
CG (chewing gum) |
during which phase of the cell cycle does DNA replicate? | Synthesis |
Semi-conservative replication definition | produces IDENTICAL DNA molecules with both one old strand (parent) and one new strand (daughter)
semi=half
conserve=save |
DNA polymerase | enzymes that create DNA molecules by assembling nucleotides, |
What makes DNA replication so fast? | the DNA origins (the proteins that are needed to be released) |
What makes DNA replication accurate? | A faithful polymerase makes an accurate copy of DNA. |
Do mistakes ever happen when replicating DNA? | Mistakes can happen; if they do, mutations occur in DNA and cancer is diagnosed |