The structure of DNA can be compared to a ladder. It has an alternating chemical phosphate and sugar backbone, making the "sides" of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G). (A grouping like this of a phosphate, a sugar, and a base makes up a subunit of DNA called a nucleotide.) These bases make up the "rungs" of the ladder, and are attached to the backbone where the deoxyribose (sugar) molecules are located.
Draw a line of 8 carbons, and join them by single bonds. This is the backbone of your molecule, the octane part. Now draw lines to represent the rest of the bonds on the backbone, one above and one below each carbon, and one more at each end ( a total of 18). Imagine the carbons numbered from the left (you could use the right, but you have to pick one.) Put a CH3 group above each of carbons 2, 3 and 4. Put a C2H5 group below carbon 4. Add an H at the end of each empty line. Now check: you should have a total of 13 C's and 28 H's.
DNA fragments move toward the positive end of the gel tray during electrophoresis because DNA is negatively charged due to its phosphate backbone. When an electric current is applied, the negatively charged DNA molecules are attracted to the positive electrode. This movement allows the fragments to be separated based on size, with smaller fragments traveling faster and farther than larger ones.
we started with a single strand DNA molecule.
because DNA is of negative charge thus it will travel towards the positive pole due to attraction.....and the movement of the DNA is also facilitated by the repulsion of the positive pole which is near by to DNA
Of course they do. Mitosis is asexual cell division in which the daughter cells are identical to mother cell in all aspects including DNA.
Yes. The 5' end of a DNA strand ends in a phosphate group. At physiological pH values, this group has a charge of -2. The other phosphate groups along the sugar-phosphate backbone have a charge of -1 each.
in engineering drawing, a line with an arrow at each end is called a dimension line
The 5' end of a DNA strand refers to one end of the molecule where a phosphate group is attached to the 5' carbon of the sugar molecule in the DNA backbone. This end is important for determining the directionality of the DNA strand. The 5' end impacts the structure and function of the DNA molecule by influencing how enzymes read and replicate the DNA sequence. It also plays a role in the process of transcription, where genetic information is used to create RNA molecules.
Oh, dude, you're hitting me with the DNA lingo now? Alright, so basically, in DNA lingo, 5' and 3' refer to the carbon atoms in the sugar backbone of the DNA molecule. The 5' end has a phosphate group attached to the 5th carbon, while the 3' end has a hydroxyl group attached to the 3rd carbon. It's like the DNA's way of saying, "Hey, this is where it all starts" and "This is where it ends, no big deal."
The 5' end of a DNA molecule refers to the end where the phosphate group is attached to the 5' carbon of the sugar molecule in the DNA backbone. The 3' end, on the other hand, is where the hydroxyl group is attached to the 3' carbon of the sugar molecule. This difference in chemical structure affects how DNA is synthesized and replicated.
If you were to unravel all the DNA in your chromosomes and line it up end to end, it would reach approximately 6 feet in length. This condensed DNA is tightly packed into the nucleus of each cell in your body to fit within the tiny space.
At the end of the S phase, each DNA molecule is duplicated and consists of two coiled sister chromatids. This results in each chromosome having two identical copies of DNA.
A line that is repeated at the end of each verse is called as REFRAIN.
line segment
A line segment.
At the end of S phase, each chromosome has two coiled DNA molecules, also known as sister chromatids. These sister chromatids are identical copies of each other formed during DNA replication in preparation for cell division.
Dimension Line