Exam 20: DNA Tools and Biotechnology

Use the following figure to answer the questions below.The DNA profiles that follow represent four different individuals. -Which of the following are probably siblings?

In recent times,it has been shown that adult cells can be induced to become pluripotent stem cells (iPS).In order to make this conversion,what has been done to the adult cells?

Which of the following statements is correct when comparing two common sequencing techniques,the chain termination method and next generation sequencing?

-Which enzyme was used to produce the molecule in the figure above?

Which of the following questions would not be answered using RNAi?

The final step in a Sanger DNA sequencing reaction is to run the DNA fragments on a gel.What is the purpose of running DNA fragments on a gel?

Use the following figure to answer the questions below.The DNA profiles that follow represent four different individuals. -Which of the following statements is most likely true?

Use the following information to answer the questions below. Spider silk is one of the strongest biomolecules known.It has a tensile strength greater than Kevlar and elasticity greater than rubber.Attempts to "farm" spiders have met with little success (they tend to eat each other).Researchers have identified the gene responsible for the formation of the silk. -Plants are more readily manipulated by genetic engineering than are animals because

Use the following information to answer the questions below. Spider silk is one of the strongest biomolecules known.It has a tensile strength greater than Kevlar and elasticity greater than rubber.Attempts to "farm" spiders have met with little success (they tend to eat each other).Researchers have identified the gene responsible for the formation of the silk. -What would be a plausible suggestion to produce this protein for human use?

Which of the following is used to make complementary DNA (cDNA)from RNA?

A researcher is using adult stem cells and comparing them to other adult cells from the same tissue.Which of the following is a likely finding?

Genetically engineered plants

What information is critical to the success of polymerase chain reaction (PCR)?

Scientists developed a set of guidelines to address the safety of DNA technology.Which of the following is one of the adopted safety measures?

One possible use of transgenic plants is in the production of human proteins,such as vaccines.Which of the following is a possible hindrance that must be overcome?

Use the following information to answer the questions below. Spider silk is one of the strongest biomolecules known.It has a tensile strength greater than Kevlar and elasticity greater than rubber.Attempts to "farm" spiders have met with little success (they tend to eat each other).Researchers have identified the gene responsible for the formation of the silk. -Researchers have successfully inserted this gene into goats.These "spidergoats" live a normal life.The silk protein is expressed and extracted from their milk.This is quite controversial; why not manufacture the silk from E.coli?

A gene that contains introns can be made shorter (but remain functional)for genetic engineering purposes by using

The reason for using Taq polymerase for PCR is that

Which of the following problems with animal cloning might result in premature death of the clones?

Use the following figure to answer the questions below.The DNA profiles that follow represent four different individuals. -A linear piece of viral DNA of 8000 base pairs in length (8kb)can be cut with either of two restriction enzymes (X or Y).These are subjected to electrophoresis and produce the following bands: Cutting the same 8 kb piece with both enzymes together results in bands at 4.0,2.5,1.0,and 0.5. Of the possible arrangements of the sites given below,which one is most likely?