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.
double-stranded complementary ends.
Restriction endonucleases recognize recognition sequences that are most palindromes, i.e. they are complimentary strands that read in opposite direction.
DNA fragments cut by most restriction enzymes have: double-stranded complementary ends. either only sequences of Gs...
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...
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...
3. Restriction endonucleases cut DNA strands and leave either blunt or sticky ends. Describe the difference between these two types of ends.
The partial sequences recognized by two restriction enzymes “A” and “B” are indicated below. Complete the sequences such that palindromes are generated for each of the sites. On your palindromes indicate which phosphodiester linkage would have to be cleaved such that 5’ protruding ends of enzyme “A” are compatible with protruding ends of enzyme “B”. Ex. CT/GCAG Enzyme “A”: 5’ATAG― ― ― ― 3’ Enzyme “B”: 5’GCG ― ― ― 3’ Consider your answer to the previous question. A DNA...
1.When cloning a PCR product into a plasmid using restriction enzymes, the restriction enzyme recognition sequences in the PCR product most likely came from _______, and the restriction enzyme recognition sequences in the plasmid most likely came from ________. a. A multiple cloning site / the primers b. The primers / a multiple cloning site c. Both came from primers d. Both came from the multiple cloning site e. Naturally present in the gene of interest / the multiple cloning...
2. Here are some DNA fragments that have been isolated by gel electrophoresis after being cut with restriction enzynes. A. 5 '-ACTGACATAGGCACCCCTTAA-3 3'-TGACTGTATCCGTGGGG-5 5 '-TGACTGTATCCGTGGGG-3' 3 '-ACTGACATAGGCACCCCTTAA-5' 5 '-GGCATACTAGATCCACGTTAA-3 3'-CCGTATGATCTAGGTGC-5 5 '-GGCATACTAGATCCACGAATT-3 3'-CCGTATGATCTAGGTGC-5 E. 5 '-GGCATACTAGATCCACGGATC-3 3'-CCGTATGATCTAGGTGC-5 a. Which pair of these fragments has appropriate complementary sticky ends to get joined together in a recombinant DNA molecule? b. What enzyme would we use to join up the DNA backbones to make the make the recombinant molecule?
You are performing an analysis of squirrel mitochondrial DNA, which is a circular double-stranded DNA molecule that is 23,000 bp in length. You are using restriction enzymes and agarose gel electrophoresis in your experiments. You have decided to use two restriction endonucleases: Pstl and Tagl. The picture below shows their recognition sites, and the red arrows indicate their strand- Pstl (Providencia stuartii) CTGCAG GACGTC specific cleavage sites. Taqi (Thermus aquaticus) TCGA AGCT Part A: The Pstl and Taql enzymes both...
Question 1 1 pts Why is it important for DNA to have complementary base pairing? O Complementary base pairing allows base pairs to be packed in the most energetically favorable arrangement inside of the double helix structure. O Complementary base pairing will pair a purine with a purine, which are a similar width, thus they are able to hold the sugar-phosphate backbone an equal distance apart along the DNA molecule o Complementary base pairing is only important for maintaining the...
Chromosomal and plasmid DNA can be cut into manageable pieces by
restriction enzymes. Using agarose gel electrophoresis, the DNA
fragments can be separated on a gel, based on their lengths. In
order to see the fragments, a stain is typically added to the gel.
The size of each fragment can be determined by comparing each one
to a DNA molecular weight marker of known size.
Below is a map of pBR22 plasmid. The position and base pair
number of the...
Identify two restriction
endonucleases that could be used to make sticky ends near the
5’ end of this DNA sequence (upper strand) so that
it could be incorporated into a new plasmid. You have a short list
of them in Table 9-2, and the specific, short sequences of bases
that other enzymes cut at are easily obtained from web resources.
You must cut as near to the 5' end as possible. Indicate the
specific sequences of bases for each endonuclease...