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When a cell encounters a double strand break in DNA, it activates a repair process called homologous recombination. In this process, the cell uses a matching DNA sequence from a sister chromatid as a template to repair the broken strands. Enzymes help align the broken DNA ends with the template, allowing for accurate repair of the double strand break.
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How does the CRISPR-Cas9 system induce and repair double strand breaks in DNA?
The CRISPR-Cas9 system induces double strand breaks in DNA by using a guide RNA to target a specific sequence in the DNA. The Cas9 enzyme then cuts the DNA at that location. The cell's repair machinery can then fix the break by either joining the broken ends back together or by introducing new genetic material.
What are the functions of lysosomes in a cell?
Lysosomes are organelles in a cell that function to break down and recycle cellular waste, digest foreign substances, and help with cell maintenance and repair.
What is the advantage of double stranded DNA?
Double-stranded DNA ensures that the actual genetic information, that is, the base pairs which give the genetic code and bound and protected in the center of the strand. It is less likely to react and can be opened up when needed, as in case of replication and transcription. Another huge advantage of double strand DNA is the ability of the cell to create a new segment of DNA in the case of DNA damage using the non-damaged strand.
Discuss the semiconservative replication of DNA?
DNA is double-stranded. The semi-conservative idea of replication means that the two strands split apart and each strand is used as a template to make a new strand. This method allows each daughter cell to have one old strand and one new strand. This is opposed to the conservative method in which the parent DNA stays together and one daughter cell receives that DNA and the other cell receives two newly synthesized strands.
DNA synthesis occurs?
during the S phase of the cell cycle, where the DNA double helix unwinds and each strand serves as a template for the synthesis of a new complementary strand. Enzymes called DNA polymerases catalyze the formation of phosphodiester bonds between nucleotides to build the new DNA strand. The end result is two identical DNA molecules, each consisting of one original strand and one newly synthesized strand.
How does the CRISPR-Cas9 system induce and repair double strand breaks in DNA?
The CRISPR-Cas9 system induces double strand breaks in DNA by using a guide RNA to target a specific sequence in the DNA. The Cas9 enzyme then cuts the DNA at that location. The cell's repair machinery can then fix the break by either joining the broken ends back together or by introducing new genetic material.
What is a long loose strand of DNA typical for the nucleus of a cell?
The chromatids are the threadlike strands that chromosomes of DNA take during cell division. Each of these consists of a single long strand of DNA double-helix.
DNA is a macromolecule that is shaped like a double?
Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell. Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell.
If you were to stretch the DNA from a cell out, how long would the strand be?
If you were to stretch the DNA from a cell out, the strand would be about 6 feet long.
What are the functions of lysosomes in a cell?
Lysosomes are organelles in a cell that function to break down and recycle cellular waste, digest foreign substances, and help with cell maintenance and repair.
What is the advantage of double stranded DNA?
Double-stranded DNA ensures that the actual genetic information, that is, the base pairs which give the genetic code and bound and protected in the center of the strand. It is less likely to react and can be opened up when needed, as in case of replication and transcription. Another huge advantage of double strand DNA is the ability of the cell to create a new segment of DNA in the case of DNA damage using the non-damaged strand.
Which event takes plac first during DNA replication?
7:00 pm.
Is DNA replication the same as DNA repair?
No, DNA replication is the process by which a cell makes an identical copy of its DNA, while DNA repair refers to the mechanisms cells use to fix damaged DNA, such as DNA mismatches, breaks, or lesions. DNA replication occurs during the cell cycle to ensure accurate transmission of genetic information to daughter cells, while DNA repair helps to maintain genomic integrity by correcting errors and damage.
How do cell become differentiated from one another when they all share the same DNA?
One strand of DNA is kept during the copy of DNA, while also a new one is added for a new strand, allowing it to become a double helix again.
Discuss the semiconservative replication of DNA?
DNA is double-stranded. The semi-conservative idea of replication means that the two strands split apart and each strand is used as a template to make a new strand. This method allows each daughter cell to have one old strand and one new strand. This is opposed to the conservative method in which the parent DNA stays together and one daughter cell receives that DNA and the other cell receives two newly synthesized strands.
DNA synthesis occurs?
during the S phase of the cell cycle, where the DNA double helix unwinds and each strand serves as a template for the synthesis of a new complementary strand. Enzymes called DNA polymerases catalyze the formation of phosphodiester bonds between nucleotides to build the new DNA strand. The end result is two identical DNA molecules, each consisting of one original strand and one newly synthesized strand.
Can I mail my cell phone in for repair?
Yes. You can mail your cell phone in for repair. It really does depend on what brand of cell phone it is and if the company is willing to accept cell phone repair by mail.
