Because humans do not produce many offspring, genes are mapped by comparing mole
ID: 224201 • Letter: B
Question
Because humans do not produce many offspring, genes are mapped by comparing molecular markers (features in the DNA) with pedigrees. Which gene mapping technique utilizes endonucleases that cut at specific sites within the human genome? Because humans do not produce many offspring, genes are mapped by comparing molecular markers (features in the DNA) with pedigrees. Polymerase chain reaction (PCR) can be used to amplify (analyze) the number of tandem copies of specific types of DNA that might vary among individuals. Name one type of repetitive DNA that is analyzed with this technique. Enzymes A, B and C are produced by human genes. The activity of these enzyme can be assessed biochemically. The following results were obtained from synteny tests. On which chromosome is the gene for enzyme A located? On which chromosome is the gene for enzyme B located? On which chromosome is the gene for enzyme C located?Explanation / Answer
1. In physical mapping technique ,restriction mapping method involves the use of restriction endonucleases.
2. microsatellites are tracts of repetitive DNA that occur at many locations in humans.VNTR( variable number tandem repeats ) are an collective name for microsatellite and minisatellites.
3. the gene for enzyme A is located on chromosome 4.
4. The gene for enzyme B is located on chromosome 3.
5. the gene for enzyme C is located on chromosome 6.