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How does DNA in the cell lysis solution become visible?
hi
When does DNA and nuclear proteins become visible in the cell cycle?
prophase
When cell chromosome become visible what are the duplicate strands of DNA called?
Daughter Chromosomes
When can you see DNA?
Chromosomes become visible (under a microscope) during prophase. At other times DNA is generally difficult to see.
What step was necessary to make the DNA visible?
The DNA needed to be stained with a dye, such as ethidium bromide or SYBR Green, that binds to the DNA molecules and fluoresces under ultraviolet light. This allows the DNA to become visible when viewed under a UV transilluminator or gel documentation system.
Isopropyl alcohol causes DNA to do what?
Isopropyl alcohol can cause DNA strands to precipitate out of a solution, essentially forming a visible clump of genetic material. This property is used in DNA extraction techniques to isolate DNA from a sample by adding isopropyl alcohol to the solution, causing the DNA to become visible and separate from other cellular components.
Why is cold alcohol used in DNA extraction?
Cold alcohol is used in DNA extraction to precipitate the DNA molecules out of the solution. The cold temperature helps the DNA molecules to clump together and become visible, making it easier to separate them from the rest of the solution.
What are only visible when a cell is preparing to divide?
Chromosomes, which consist of DNA and proteins, are only visible when a cell is preparing to divide. These structures condense and become visible under a microscope during cell division, allowing for the precise distribution of genetic material to daughter cells.
At what phase of mitosis does the DNA become most visible?
During prophase, the DNA condenses into tightly coiled structures called chromosomes, making them highly visible under a microscope. This condensation allows for easier segregation of genetic material during cell division.
What phase does DNA scrunch up and the chromosomes are first visible?
During prophase of mitosis, DNA condenses and coils into visible chromosomes. This phase marks the beginning of the cell division process, where chromosomes pair up and become more distinguishable under a microscope.
What is a DNA repair enzyme activated by visible light?
DNA photolyase
Why does ethanol precipitate DNA during the extraction process?
Ethanol precipitates DNA during the extraction process because DNA is not soluble in ethanol. When ethanol is added to the DNA solution, the DNA molecules become less soluble and clump together, forming a visible precipitate that can be collected and separated from the rest of the solution.
