Unit 3 - DNA Structure and Replication
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Created by:
DRHS_Biology Plus on October 21, 2010
Subjects:
Classes:
Shupe Biology, Mrs. Shupe's Biology
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26 terms
Terms | Definitions |
|---|---|
 deoxyribose, nitrogen base, phosphate group, | A nucleotide is made up of three subunits, what are they? (alphabetical order with commas) |
| deoxyribose | The sugar found in DNA |
| deoxyribose phosphate group | The sides of DNA are ____________ and ____________ |
| helicase | This enzyme "unzips" DNA during replication |
| polymerase | This enzyme help for the sugar and phosphate bonds between the nucleotides |
| Rosalind Franklin | This scientist took a picture of DNA (using X-Ray crystallography) |
| Watson and Crick | These two scientists created the first model of DNA |
| nitrogen bases | The steps or rungs of DNA are made of what? |
| purines | adenine and guanine are known as |
| pyrimidines | thymine and cytosine are known as |
| adenine, cytosine, guanine, thymine | List the nitrogen bases of DNA in alphabetical order (use commas) |
| the body is always making new cells and every cell needs DNA | Why does DNA need to replicate? |
| 5 billion | _________________ nucleotides make up the 46 chromosomes found in one human cell |
| old, new | Each DNA molecule has one _______ strand and one _______ strand |
| replication fork | During DNA replication the point at which the two strands of DNA separate (looks like the letter Y) is known as the |
| Thymine | Adenine always pairs with _________________ |
| Adenine | Thymine always pairs with _____________ |
| Guanine | Cytosine always pairs with _____________ |
| Cytosine | Guanine always pairs with ___________ |
| hydrogen bonds | Bases are held together by _______ |
| Franklin | Used X-ray diffraction to develop images of DNA |
| Watson | Along with colleagues developed an accurate model of DNA. Worked with Francis Crick |
| Crick | Together with colleagues developed an accurate model of DNa. Worked with James Watson |
| TAA ATT TGG CAC | What would the complimentary DNA strand be ATT TAA ACC GAG |
| CCC GGG TTT AAA | What would the complimentary DNA strand be GGG CCC AAA TTT |
| GTG CTC CGC AAT | What would the complimentary DNA strand be CAC GAG GCG TTA |
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