DNA can replicate itself because of the way its double strands relate to one another. The purines and pyrimidines that join the two strands pair exclusively with only one other base. This ensures that when the DNA strands separate to replicate an exact copy is created.
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In addition, what is the key feature that allows DNA to be copied?
Even in the case, what are the structural features of DNA? DNA has three types of chemical component: phosphate, a sugar called deoxyribose, and four nitrogenous bases—adenine, guanine, cytosine, and thymine. Two of the bases, adenine and guanine, have a double-ring structure characteristic of a type of chemical called a purine.
Wherefore, what are the 3 functions of DNA?
DNA Biological Functions
- Proteins. A protein is a complex molecule found in the body that is abundant and is vital for most living functions. ...
- How is DNA linked to proteins? DNA carries the codes for proteins. ...
- Transcription. ...
- Translation. ...
- Modification and folding. ...
- Coding for proteins. ...
- DNA replication. ...
- DNA inheritance.
What are the two DNA components?
In turn, each nucleotide is itself made up of three primary components: a nitrogen-containing region known as a nitrogenous base, a carbon-based sugar molecule called deoxyribose, and a phosphorus-containing region known as a phosphate group attached to the sugar molecule (Figure 1).
14 Related Questions Answered
ACGT is an acronym for the four types of bases found in a DNA molecule: adenine (A), cytosine (C), guanine (G), and thymine (T). ... Adenine pairs with thymine, and cytosine pairs with guanine.
The backbone of a DNA molecule consists of the phosphate groups and the deoxyribose sugars, whereas the base region of the DNA molecule consists of the nitrogenous bases; therefore, the backbone of DNA is made up of phosphate groups and pentose sugars. Adenine is part of the base region of the molecule.
DNA is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among 46 long structures called chromosomes. These chromosomes are made up of thousands of shorter segments of DNA, called genes.
3.2 billion base pairs
What are the two DNA components shown in the Gizmo? has two parts: - pentagonal sugar (deoxyribose) and a nitrogenous base.
Why is every human genome different
? Every human genome is different
because of mutations—"mistakes" that occur occasionally in a DNA
sequence. When a cell divides in two, it makes a copy of its genome, then parcels out one copy to each of the two new cells.
In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine.
each sugar is
one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T
). The two strands are
held together by hydrogen bonds
between the bases, with adenine forming a base pair
with thymine, and cytosine forming a base pair
C-value is the amount of nuclear DNA in the unreplicated gametic nucleus, irrespective of the ploidy level of the species.