What makes up a single strand of hair?
So simply we can say, a single strand of hair is the complete length of our hair. In this section, we will know about the construction of the hair strand. Generally, every single strand of hair consists of with two main components such as a hair root and a hair shaft.
What makes up the small molecules in DNA?
DNA molecules are polymers, which means they are large molecules made up of many smaller molecules. The small molecules that make up DNA are called nucleotides. Each nucleotide contains a phosphate group, a sugar molecule (called deoxyribose ), and a nitrogenous base. There are four types of nitrogenous bases found in DNA molecules.
How is the structure of DNA like a ladder?
The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder. Each strand of deoxyribonucleic acid (DNA) has a beginning and an end, called 5’ (five prime) and 3’ (three prime) respectively.
What makes up the backbone of a DNA strand?
Covalent bonds join the sugar of one nucleotide to the phosphate group of the next nucleotide, forming the DNA strand’s sugar-phosphate backbone. A nitrogenous base is an organic molecule that contains nitrogen and has the chemical properties of a base.
DNA molecules are polymers, which means they are large molecules made up of many smaller molecules. The small molecules that make up DNA are called nucleotides. Each nucleotide contains a phosphate group, a sugar molecule (called deoxyribose ), and a nitrogenous base. There are four types of nitrogenous bases found in DNA molecules.
Which is an example of a unwound strand of DNA?
Briefly, DNA is unwound in the area of a gene. That means a single strand with bases. As an example, the string could be ATGGGC. A messenger RNA molecule is made using the DNA as a template. Because of the base pairing, the mRNA will be TACCCG.
Which is an example of a secondary structure of DNA?
The simplest example of this is probably cruciform DNA, which can form when two sequences (oligos or larger) can form internal hairpins, and then base-pair to each other through the flanking sequences. The synthetic application of this idea has the unfortunate name of DNA origami and is starting to enter the realm of practical materials science.
How is the structure of DNA and RNA similar?
DNA and RNA are very similar molecules. Both are types of nucleic acid, both contain genetic information, and both can be found in the nuclei of cells. The structure of RNA nucleotides are also similar to those of DNA; both contain a phosphate group, a sugar molecule, and a nitrogenous base.
