Admin What three things make up a DNA molecule?
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).
How many strands make up a DNA molecule?
two strands
So each DNA molecule is made up of two strands, and there are four nucleotides present in DNA: A, C, T, and G. And each of the nucleotides on one side of the strand pairs with a specific nucleotide on the other side of the strand, and this makes up the double helix.
How much DNA is in A cell?
A human cell contains about 6 pg of DNA.
What are the 2 strands of DNA called?
The double helix describes the appearance of double-stranded DNA, which is composed of two linear strands that run opposite to each other, or anti-parallel, and twist together. Each DNA strand within the double helix is a long, linear molecule made of smaller units called nucleotides that form a chain.
What are the six components of DNA?
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).
What are 3 parts of a DNA molecule?
Each of the two polymers contains many structures which are called nucleotides , which, in turn, are further broken down into three parts: Deoxyribose, a phosphate group, and a nitrogenous base. The three main parts that are in the DNA molecule are nitrogen for base, sugar and phosphate.
What two things make up the backbone of a DNA molecule?
The “backbone” of the DNA molecule is made up of two components: sugars and phosphates. bases and sugars. nucleotides and phosphates . monomers and sugars.
What does each molecule of DNA is called?
Each strand of DNA is a polynucleotide composed of units called nucleotides . A nucleotide has three components: a sugar molecule, a phosphate group, and a nitrogenous base. The sugar in DNA’s nucleotides is called deoxyribose-DNA is an abbreviation for deoxyribonucleic acid.
What makes one DNA molecules different from another?
DNA is highly stable because it contains deoxyribose rather than ribose in its backbone. DNA exists as a double helical structure in cells and it is almost always in close association with proteins. Answer and Explanation: The sequence of nitrogenous bases in a DNA molecule makes one DNA molecule different from another.