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Which protein creates DNA fragments with sticky ends?

Restriction enzymes are proteins that can create DNA fragments with sticky ends by cleaving DNA at specific recognition sequences. The sticky ends refer to single-stranded overhangs that are complementary to each other, allowing for the fragments to easily anneal to each other during DNA recombination.


Why do sticky ends have to be complementary?

Sticky ends need to be complementary in order to form hydrogen bonds between the bases of the nucleotides, which allows the two DNA fragments to anneal together and be ligated by DNA ligase. Without complementarity, the sticky ends would not be able to hybridize and join together efficiently.


List the two nucleotide sequence that are complementary to the sticky end sequence on the human DNA?

The complementary nucleotide sequence to a sticky end sequence on human DNA would be its reverse complement sequence. For example, if the sticky end sequence is "AATT", its complementary sequence would be "TTAA".


The primary function of DNA ligase is to?

The primary function of DNA ligase is to reassemble DNA fragments produced by the use of restriction enzymes. The pieces are joined using a process called ligation, which uses the enzyme, DNA ligase which acts as a molecular 'stapler'. The fragments are joined as follows: - sticky-ended DNA fragments are created from two DNA sources using the same restriction enzyme. - The DNA from the two sources is mixed and complementary ends allowed to form complementary base pairs. This process forming loose and temporary join by hydrogen bonding is called annealing. - DNA ligase is then added to form a permanent link.


What property of restriction enzymes allows DNA from different organisms to be combined?

Restriction enzymes recognize and cut specific nucleotide sequences in DNA, creating "sticky" or "blunt" ends that can anneal with complementary DNA fragments from different organisms. This property enables the precise cutting and pasting of DNA, facilitating the combination of genetic material from various sources in recombinant DNA technology. As a result, scientists can engineer new combinations of genes for research, medicine, and biotechnology applications.

Related Questions

Which protein creates DNA fragments with sticky ends?

Restriction enzymes are proteins that can create DNA fragments with sticky ends by cleaving DNA at specific recognition sequences. The sticky ends refer to single-stranded overhangs that are complementary to each other, allowing for the fragments to easily anneal to each other during DNA recombination.


Why do sticky ends have to be complementary?

Sticky ends need to be complementary in order to form hydrogen bonds between the bases of the nucleotides, which allows the two DNA fragments to anneal together and be ligated by DNA ligase. Without complementarity, the sticky ends would not be able to hybridize and join together efficiently.


What seals the sticky ends of restriction fragments to make recombinant DNA?

These sticky ends, if they two pieces match, they will join together to form a recombinant DNA.


What does the term sticky ends refer to in gene splicing?

Sticky ends are produced by cutting the DNA in a staggered manner within the recognition site producing single-stranded DNA ends. These ends have identical nucleotide sequence and are sticky because they can hydrogen-bond to complementary tails of other DNA fragments cut by the same restriction enzyme.


When a restriction enzyme cuts a dna molecule the cuts are staggered so that the dna fragments have single stranded ends why is this is important in recombinant dna work?

It is important because the fragments will bond to other fragments with complementary single-stranded ends.


What are the considerations for designing DNA fragments with restriction enzyme compatible ends for successful cloning?

When designing DNA fragments for cloning, it is important to choose restriction enzymes that will create compatible ends on the DNA fragments. This means selecting enzymes that produce complementary overhangs, or "sticky ends," which will allow the fragments to easily bind together during the cloning process. Additionally, it is crucial to consider the size and sequence of the DNA fragments to ensure successful cloning.


How are the cleaved DNA fragments from two sources able to recombine?

Sometimes, when the cleaved DNA fragments both have sticky ends, they naturally anneal due to complementary base pairing. However, an enzyme called DNA Ligase is used for joining cut strands of DNA together. There is a ligase called t4 Ligase that joins blunt ends because it is stronger.


Why are sticky ends called sticky?

Sticky ends are called "sticky" because the single-stranded overhangs created by certain restriction enzymes can bind to another DNA molecule with a complementary overhang, leading to the joining of the two DNA molecules. The complementary pairing between the sticky ends creates a temporary connection, similar to how something sticky adheres to another surface.


What are stick ends?

the enzymes cause sticky ends to form------------------------------------------------the question is WHAT ARE STICKY ENDS, not how are sticky ends formed.the answer is "single stranded pieces of DNA left at the ends of restriction fragmants"-simone :)The actual answer is: single-stranded ends of fragments of double-stranded DNA


What is a sticky end?

A Sticky End, referring to Biology is recombinant DNA. After DNA has been cut by a restriction enzyme it has "sticky ends" or recombinant DNA at the ends.


what substance was needed to join the insulin gene to the bacterial DNA?

Technically it is not a substance, but the DNA itself. Let me explain. When the insulin gene is cut out of a regular strand, it is done through a DNA ligase (a cutting enzyme). The SAME ligase is used to cut the bacterial loop of DNA. When ligase cuts DNA sticky ends are left. These sticky ends are, as they say, sticky, and will readily join to new bases with the corresponding (complementary) base pair sequence. As the same ligase is used, the corresponding base sequence is inside the bacterial DNA, so they should connect together.


How do sticky ends function?

Readily bind to complementary chains of DNA. Thus, pieces of DNA that have been cut with the same restriction enzyme can bind togeher to form a new sequence of nucleotides.