Campbell Biology 101
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| 589164132 | What did Watson and Crick discover? | Double helical model of DNA | |
| 589164133 | DNA encodes... | hereditary information | |
| 589164134 | What did Morgan discover and when? | Genes on chromosomes, early 20th century | |
| 589164135 | What did Frederick Griffith study? | Pathogenic and non pathogenic pneumonia in mice | |
| 589164136 | What and when did Hershey and Chase discover? | DNA is genetic material, 1952 | |
| 589164137 | How did Hershey and Chase perform their experiment? | Centrifuge | |
| 589164138 | What did Erwin Chargoff discover? | Base pairs vary among species 30% Adenine in humans 26% Adenine in E.coli | |
| 589164139 | What did Wilkins and Franklin do? | Produced the first X-ray crystallography of DNA DNA composed of two antiparallel sugar-phosphate backbones | |
| 589164140 | What are the dimensions of DNA | 1nm wide 3.4 nm per rotation .34 nm between base pairs | |
| 589164141 | How many hydrogen bonds does Adenine/Thymine have? Cytosine/Guanine? | 2,3 | |
| 589164142 | What combination of base pairs fit together? | Pyrimidine + purine | |
| 589164143 | How many new strands of DNA are formed each time it is replicated? | 2 | |
| 589164144 | Is DNA Dispersive, conservative, or semi-conservative? Who discovered this? When? | Semi-conservative, Meselson and Stahl, 1950's | |
| 589164145 | What are the three steps of DNA replication? | Origin of replication, Elongation, Priming | |
| 589164146 | What end do nucleotides add on to? | 3' | |
| 589164147 | Where does elongation occur? What is it catalyzed by? | Replication fork, DNA polymerase | |
| 589164148 | What are the two original strands of DNA called? | Leading and Lagging strand | |
| 589164149 | Why does the lagging strand lag? | It must create the new DNA in okazaki fragments from the 5' to 3' end | |
| 589164150 | What joins okazaki fragments together? | DNA ligase | |
| 589164151 | What is a telomere? | Nucleotide sequences at the ends of DNA molecules |
