Why can a polymerase chain reaction be compared to a biological copy machine?

A polymerase chain reaction be compared to a biological copy machine Because, it is used to make millions of copies of a specific DNA molecule.

The method that is mostly used in the field of molecular biology is the PCR. This method is used for the purpose of making a specific DNA sample copies which can range form millions to billions. Thus, it helps a scientist to take only a smaller sample of DNA and then making it into larger amounts so that it helps them in studying their details.

There are some important steps involved in PCR. These includes, denaturation, annealing and extension of the DNA strands. As this method helps in creating large amount of copies of DNA it can be compared to a biological copy machine.

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.