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BIO 120-Genetics
BC-The Molecular Basis of Inheritance
| Question | Answer |
|---|---|
| What would the DNA bases be that would pair with: T C A G ? | A G T C |
| In the Griffith's experiments, heat killed encapsulated bacteria were mixed with _______ and the mice died. | Live unencapsulated |
| What are the subunits (building blocks) of nucleic acids? | Nucleotides |
| The name of the strand in DNA replication that is made as one continuous piece. | Leading |
| The pyrimidines found in DNA are: | Cytosine and Thymine |
| The name of the process which makes DNA from a DNA template. | Replication |
| The enzyme which pieces together the short DNA segments on the lagging strand during replication. | DNA Ligase |
| The type of bond holding the sugar/phosphate backbone together in DNA. | Covalent |
| The ability of bacteria to pick acquire foreign pieces of DNA and incorporate that DNA into their genome. | Transformation |
| In DNA & RNA, the base Cytosine pairs with: | Guanine |
| In general, what are the 3 parts of a nucleotide? | Phosphate, Sugar, Base |
| In DNA, the base Adenine pairs with: | Thymine |
| The term for the new DNA molecule which is made during replication....being half old DNA and half new DNA. | Semi-Conservative Replication |
| The name of the strand in DNA replication that is made as small pieces that are later put together. | Lagging |
| The type of bond holding the bases together in the middle of the helix of DNA. | Hydrogen Bonds |
| The term that describes the 2 strands of DNA nucleotides running in opposite chemical directions is known as: | Anti-parallel |
| How many molecules of DNA is/are contained in a single eukaryotic chromosome? | One |
| What type of Streptococcus pneumoniae causes pneumonia? | Encapsulated |
| What portion of the virus in the Hershey-Chase experiments actually went inside the host cell? | DNA only |
| The purines found in DNA are: | Guanine and Adenine |
| The sugar found in a nucleotide of DNA is: | Deoxyribose |
| What direction is DNA polymerase able to make new strands? | 5' to 3' |
| The term for DNA wound twice around a core of 8 histone proteins. | Nucleosomes |
| The experiments by Griffith were done to prove that ______ was the heritable material. | DNA |
| What type of Streptococcus pneumoniae does not cause pneumonia? | Unencapsulated |
| The name of the enzyme which assembles new nucleotides to growing DNA strands during replication. | DNA Polymerase III |
| What 2 parts of the virus were radioactively labeled in the Hershey-Chase experiments? | DNA and Protein |
| Which strain of Streptococcus pneumoniae is unencapsulated? (no capsule) | R strain |
| Which strain of Streptococcus pneumoniae is encapsulated? (has a capsule) | S strain |
| Griffith's experiments used mice and what bacteria to determine what portion of the cell carried the heritable information? | Streptococcus pneumoniae |
| Bacteria that are able to pick up foreign pieces of DNA have undergone : | Transformation |
| What enzyme was able to destroy transformation in Griffith's experiments? | DNAase |
| These are viruses that infect bacteria: | Bacteriophage |
| Which experiments were done utilizing radioactively labeled DNA and protein? | Hershey-Chase Experiments |
| This protein binds to the single strands of DNA during replication and keeps them from reforming the helix. | SSBP (Single stranded binding proteins) |
| Enzymes that untwist the double helix at the replication fork. | Helicase |
| This enzyme relieves the strain of twisting in the double helix during replication. | Topoisomerase |
| This enzyme makes the RNA primer. | Primase |
| These result from the origin of replication opening up an area of the helix. | Replication Bubble |
| This is a Y shaped region where replication is occurring in the DNA. | Replication Fork |
| Proteins that the DNA molecule are complexed with in Eukaryotes. | Histones |
| Histone proteins + DNA = | Chromatin |
Created by:
callen-pbsc
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