Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
What is the significance of cardboard for James Watson?
|
a. Watson and Crick had been trying to figure out the 3D structure of DNA for months.
b. The cardboard cutouts represented the four kinds of "bases" found in the DNA molecule. c. After messing around, he finally put them together as a a double-helix, giving him two identically shaped pairs. |
|
|
What has come from the discovery of the structure of the DNA molecule?
|
a. The transplanting of genes into animals and crops to change their traits.
b. The use of gene therapy to treat disease. c. Significant advancement in DNA criminal forensics. d. The question of inheriting genes was answered in the DNA’s copy friendly structure. e. The discovery of RNA f. The use of DNA for making extremely small devices and powerful computers. |
|
|
What is a DNA fingerprint?
|
a. A unique identifier for every person and animal; same in every single cell, and cannot be altered.
i. A pattern of bars in photographic film, produced with agarose gel and DNA sample |
|
|
How, in general, is a DNA fingerprint produced for a person?
|
i. Obtain a sample of DNA
ii. DNA is isolated iii. DNA treated with restriction enzymes, cutting the DNA into smaller fragments. iv. DNA fragments applied to agarose gel. v. Blotting- DNA transferred to nylon membrane using absorbent paper towels. vi. Radioactive probes applied, binding only to DNA fragments vii. A pattern of bars is exposed into photographic film. viii. Pattern of bars is GENETIC FINGERPRINT |
|
|
What are the uses of DNA fingerprints?
|
a. Diagnosis of inherited disorders
i. In both prenatal and newborn babies in hospitals everywhere. b. Developing cures for inherited disorders i. Research programs locate inherited disorders on a chromosome dependent level, from info in DNA fingerprint. c. Biological Evidence i. FBI and police labs use DNA to link suspects to biological evidence found at a crime scene. ii. Establish paternity in custody and child support litigation. d. Personal Identification i. Used by US military to identify casualties or person MIA. |
