What is the basic unit of information in a DNA molecule? In an RNA molecule? In a polypeptide?
Basic structural unit of a DNA molecule is called a nucleotide. Basics structural unit an of RNA molecule is also a nucleotide.
Basic structural unit of a polypeptide is called an amino acid.
DNA is translated into RNA which is transcribed into amino acids, which then link together to make an amino acid sequence (aka a polypeptide)
The basic unit of information in a DNA molecule is called a nucleotide. A nucleotide consists of a sugar molecule (deoxyribose), a phosphate group, and one of four nitrogenous bases (adenine, thymine, cytosine, or guanine).
In an RNA molecule, the basic unit of information is also a nucleotide. However, RNA contains a different sugar molecule (ribose) and the base uracil (instead of thymine present in DNA). RNA nucleotides also have a phosphate group.
In a polypeptide, the basic unit of information is an amino acid. Amino acids are the building blocks of proteins. They are linked together by peptide bonds to form polypeptide chains. The specific sequence of amino acids in a polypeptide chain determines the structure and function of the protein.
The basic unit of information in a DNA molecule is called a nucleotide. A nucleotide consists of three main components: a phosphate group, a sugar molecule (deoxyribose), and one of four nitrogenous bases (adenine, thymine, cytosine, or guanine). The order of these bases along the DNA molecule forms the genetic code.
Similarly, in an RNA molecule, the basic unit of information is also a nucleotide. However, RNA differs from DNA in that it contains the sugar ribose instead of deoxyribose, and it has the nitrogenous base uracil instead of thymine. The four nitrogenous bases in RNA are adenine, uracil, cytosine, and guanine.
In a polypeptide, which is a chain of amino acids, the basic unit of information is the amino acid itself. There are 20 different amino acids that can be found in polypeptides, and the specific sequence of these amino acids determines the structure and function of the protein. This sequence is encoded in the mRNA (messenger RNA) molecule, which is transcribed from DNA and serves as a template for protein synthesis.