The chain termination method using Dideoxyribonucleoside triphosphates was given by:
1. | Paul Berg | 2. | Fred Sanger |
3. | Marshall Nirenberg | 4. | George Gamow |
Which of the following is not a salient feature of the human genome?
1. | The actual total number of genes is much higher than what was previously estimated. |
2. | Less than 2 percent of the genome codes for proteins. |
3. | The functions are unknown for over 50 percent of the discovered genes. |
4. | Repeated sequences make up a very large portion of the human genome. |
Which of the following is not a correct finding of the human genome project [based on the information given in the NCERT textbook]?
1. |
Number of base pairs |
3164.7 million |
2. |
Percent of the genome that codes for proteins |
Less than 2 |
3. |
Total number of genes |
About 30000 |
4. |
Locations at which ‘snips’ present |
2.1 million |
Identifying all the genes in the genome that are transcribed into RNA is called:
1. | Expressed Sequence Tag | 2. | Sequence Annotation |
3. | Inverse PCR | 4. | Retrotransposition |
It is believed that all organisms have arisen from a single distant ancestor. The strongest evidence for this would be:
1. | DNA stores genetic information in all organisms. |
2. | The genetic code is universally a triplet code. |
3. | The amino acids specified by particular triplets are almost always identical between any two organisms. |
4. | The genetic code is degenerate but unambiguous. |