What is the name given to a region of DNA that varies from person to person?

What is the name given to a region of DNA that varies from person to person?

STR Polymorphisms Most of our DNA is identical to DNA of others. However, there are inherited regions of our DNA that can vary from person to person. Variations in DNA sequence between individuals are termed “polymorphisms”.

What is the best definition for recombinant DNA?

Recombinant DNA Technology is defined by the Encyclopedia Britannica as “the joining together of DNA molecules from different organisms and inserting it into a host organism to produce new genetic combinations that are of value to science, medicine, agriculture and industry.”

How do forensics investigators use DNA fingerprinting to link a particular suspect to a particular crime scene?

How do forensic investigations use DNA fingerprints to link a particular suspect to a particular crime scene? forensic investigators compare genetic markers in DNA taken from suspects to genetic markers in DNA from crime scene samples. they extract a tiny amount of DNA from the scalp tissue.

Which enzyme is used to bind DNA fragments together?

DNA ligase is a specific type of enzyme, a ligase, (EC 6.5. 1.1) that facilitates the joining of DNA strands together by catalyzing the formation of a phosphodiester bond.

How can your DNA be used to identify you?

DNA can be used to tell people apart because humans differ from each other based on either their DNA sequences or the lengths of repeated regions of DNA. The technique of gel electrophoresis separates DNA by size, thus allowing people to be identified based on analyzing the lengths of their DNA.

Which of the following is the best definition for a gene?

A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.

What is meant by rDNA?

​Recombinant DNA (rDNA) = Recombinant DNA (rDNA) is a technology that uses enzymes to cut and paste together DNA sequences of interest. The recombined DNA sequences can be placed into vehicles called vectors that ferry the DNA into a suitable host cell where it can be copied or expressed.

How can you use this drop of blood to definitely make the association?

You are attempting to link an individual to a crime. The only evidence you have is a tiny drop of blood. How can you use this drop of blood to definitively make the association? You can use PCR to increase the amount of DNA available for STR analysis.

What type of protein is used in DNA profiling to cut the DNA into fragments?

Restriction enzymes
Restriction fragment length polymorphisms, or RFLPs, are differences among individuals in the lengths of DNA fragments cut by enzymes. Restriction enzymes are proteins that cut DNA at short, specific sequences called restriction sites.

Can you be identified by your blood?

The use of blood in forensic analysis is a method for identifying individuals suspected of committing some kinds of crimes. Furthermore, forensic scientists can use that information to exculpate people suspected of some types of crimes, and they can use it to help determine the paternity of children.

Can gene expression be reversed?

Unlike genetic changes, epigenetic changes are reversible and do not change your DNA sequence, but they can change how your body reads a DNA sequence. Gene expression refers to how often or when proteins are created from the instructions within your genes.