Table of Contents
What is the sequence of nucleotides in mRNA?
The sequence of nucleotides in the mRNA molecule is read consecutively in groups of three. RNA is a linear polymer of four different nucleotides, so there are 4 × 4 × 4 = 64 possible combinations of three nucleotides: the triplets AAA, AUA, AUG, and so on.
What is the making of RNA from a sequence of DNA?
Transcription is the first step in gene expression. It involves copying a gene’s DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template).
What is the sequence of the RNA molecule synthesized?
mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.
What is a specific sequence of RNA nucleotides?
Gene is a specific sequence of nucleotides in DNA (or RNA) that is located on the chromosome and considered as a functional unit of inheritance. The basic structure of gene is almost same in the prokaryotes and eukaryotes but more complex in eukaryotes.
What is the function of the sequence of nucleotides?
The nucleotide sequence is the most fundamental level of knowledge of a gene or genome. It is the blueprint that contains the instructions for building an organism, and no understanding of genetic function or evolution could be complete without obtaining…
What happens to RNA after protein synthesis?
After the mRNA is processed, it carries the instructions to a ribosome in the cytoplasm. Translation occurs at the ribosome, which consists of rRNA and proteins. In translation, the instructions in mRNA are read, and tRNA brings the correct sequence of amino acids to the ribosome.
What is a sequence of nucleotides called?
A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid or stop signal during protein synthesis.
What is the information in the sequence of nucleotides used to do?
Genetic Code: The sequence of nucleotides, coded in triplets (codons) along the mRNA, that determines the sequence of amino acids in protein synthesis. A gene’s DNA sequence can be used to predict the mRNA sequence, and the genetic code can in turn be used to predict the amino acid sequence.
What are the sequence of nucleotides in?
A gene is an ordered sequence of nucleotides located in a particular position within the genome that encodes a specific functional product (i.e., a protein or RNA molecule).