0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
In a gel electrophoresis's why are the lines closer together when the DNA strands are heavier?
Because the DNA cannot travel very long and spread apart when the strands are heavy. As a result, the DNA strands will all travel a relatively short distance and be closer together.
How are restriction enzymes used to look for differences between DNA samples?
Restriction enzymes cleave, or open, the DNA so that a sample can be taken and gel electrophoresis can separate the strands of DNA. From there, DNA probes bind to certain strands in each sample and DNA fingerprints can show the differences.
If the DNA strands are matched up what does that mean?
This means the two strands of DNA are complementary.
What are the two strands DNA held by?
The two strands of DNA are connected by hydrogen bonds.
How are individual DNA strands are constructed?
DNA replication duplicates the DNA strands. This process is accompanied by various enzymes such as DNA polymerase, Helicase, Topoisomerase.In labs they are constructred by Polymerase chain reaction(PCR).
Describe the function of electricity and the agarose gel in electrophoresis?
The electricity pulls the polar DNA strands through the gel, and shorter DNA strands move farther because they are less inhibited by the gel. The gel acts as drag to separate the different length DNA strands, so different DNA creates specific dye bands.
The results of gel electrophoresis are shown below with four different strands of DNA labeled. Which strand of DNA is the shortest?
Answer this q The results of gel electrophoresis are shown below, with four different strands of DNA labeled.Which strand of DNA is the shortest? uestion…
In a gel electrophoresis's why are the lines closer together when the DNA strands are heavier?
Because the DNA cannot travel very long and spread apart when the strands are heavy. As a result, the DNA strands will all travel a relatively short distance and be closer together.
One function of gel electrophoresis is to?
To separate strands of DNA based on their size. Shorter strands will migrate more slowly than larger strands. ** Also because DNA is slightly negatively charged, it will move toward the positive end of the electrodes... this is why the current is used when running a gel. Short strand move further** than large ones due to the gel resistance.
Long strands of DNA that are uncoiled?
Chromatin are long, uncoiled strands of DNA. Chromatin contain the genetic information of the cell. Cytoplasm is the clear fluid or gel that surrounds the organelles outside the nucleus.
How are restriction enzymes used to look for differences between DNA samples?
Restriction enzymes cleave, or open, the DNA so that a sample can be taken and gel electrophoresis can separate the strands of DNA. From there, DNA probes bind to certain strands in each sample and DNA fingerprints can show the differences.
How many DNA strands do goldfish have?
10000 DNA strands.
How many strands is DNA made of?
DNA is composed of two strands of DNA nucleotides.
How many strands are there at the beginning of DNA replication?
At the beginning of DNA replication there are two strands of DNA nucleotides.
If the DNA strands are matched up what does that mean?
This means the two strands of DNA are complementary.
What are the two strands DNA held by?
The two strands of DNA are connected by hydrogen bonds.
DNA molecules has how many strands?
DNA molecule is normally double stranded
