sticky or cohesive end has protruding single-stranded strands with unpaired nucleotides called overhangs; each overhang can anneal with another complementary one to form base pairs. The two complementary cohesive ends of DNA can annealtogether via hydrogen bonding.
B and D pair of these fragment make complementay strand.
Answer DNA ligase used to join DNA backbone to make up recombinant molecule.
2. Here are some DNA fragments that have been isolated by gel electrophoresis after being cut...
find the errors Restriction enzymes recognize specific DNA sequences and cut each strand of DNA at specific locations at the target sequence. The result of digesting a particular genome with a particular restriction enzyme is a collection of restriction fragments of defined length and composition. These can be used to generate restriction maps or create pieces with sticky ends. These sticky ends can be used to attach to other fragments that have sticky ends caused by cutting with a different...
NA fingerprinting uses a process called gel electrophoresis to separate the fragments of DNA. Once the DNA fragments are sorted, the pattern of bands can be analyzed. 1)Gel Electrophoresis Procedure The smaller DNA fragments start to move away from the wells and the larger DNA fragments remain closer to the wells. 2)An electric current is passed through the gel. 3) DNA fragments are treated with a dye. 4)A restriction endonuclease is added to the DNA. 5)Using micropipettes, the DNA samples...
Write true or false ______ 1. The DNA sequence of one human being is on average 99.9% identical to another random human being. ______ 2. As of 2009, all living human beings have had their entire genome sequenced. ______ 3. The nucleotide bases present in a DNA sequence are A, U, G, C. ______ 4. Techniques that enabled scientists to clone genes were developed in the 1970s. ______ 5. A restriction enzyme is useful because it is a generic enzyme...
15- Which option BEST describes sticky ends by restriction enzymes B. Sticky ends A. Sticky ends are DNA fragments that carry a higher charge than normal after they have been cleaved are DNA fragments cleaved by a restriction enzyme so that one strand is longer than the other C. Sticky ends are DNA fragments cleaved by a restriction enzyme so that both strands are the same length. D. Sticky ends are DNA fragments that attract a carbohydrate molecule to one...
DNA fragments cut by most restriction enzymes have: double-stranded complementary ends. either only sequences of Gs or only sequences of Cs. cuts made at random points along one of the strands. protruding sticky ends.
The picture above represents an agarose gel that was used to analyze plasmid DNA after it was cut with the restriction enzyme HindIll. The plasmid was incubated with Hindill until all of the available Hindlll cut sites were cut by HindIll. After running the sample on the gel, three bands were detected (Note that there are three wells shown at the top of the gel for loading samples, however, only the middle well was loaded with sample). Based on this...
can someone explain throughly on how to find a-c??? thanks!!! The following question will provide practice in interpreting and analyzing gel results. 5. You obtained the DNA electrophoresis gel below. Three samples of lambda phage DNA were digested with 3 different restriction enzymes and the digested DNA was applied to the gel in lane 4 and the bands were visualized. The Hind Ill digest was used as a molecular weight standard marker and produced 6 DNA fragments of known size:...
Use the following depiction of a gel of Hind III fragments to answer the questions: 1 Kb Ladder Possible Hind III Fragments: 1 Kb Ladder Sizes 10,000 8,000 564 bp 8,888 2.0 kb 2.3 kb 11 4.36 kb 4,000 3,000 2,500 2,000 1,500 6.5 kb 9.4 kb 23 kb 1,000 750 500 250 1. Based on the gel results, list the sizes of the chromosome fragments cloned: 2. Based on the gel results, list the sizes of the chromosome fragments...
Luestion 3 1 pts Review: You have the DNA that is radioactively labeled at the S'ends of DNA as shown below. But you want DNA that is labeled only at one end of the DNA, not both ends. One of the other undergraduate students in the lab suggests that you use a restriction enzyme to cut the DNA, then electrophorese the DNA in an agarose gel, then cut out the region of the gel with radioactive DNA fragment you want,...
Hi I have a problem with number 5, it involves gel analysis results. There are 2 parts, a,b,c. For A Im sure you need to make a graph with distance in (cm) on the vertical axis and log10 bp on the horitzontal. I need help figuring out where to start and what to do. Please help! The following question will provide practice in interpreting and analyzing gel results You obtained the DNA electrophoresis gel below. Three samples of lambda phage...