DNA contains the genetic information and present in most of the cells. Cells contain DNA in their nucleus. Mitochondria also contain DNA, which... View Article
The most common chromosomal disorders in humans are due to aneuploidy, where there is loss or gain of one or more chromosomes. Examples are:... View Article
Triplet is a tri-nucleotide sequence. Triplet of mRNA is a codon, which codes for a specific amino acid during translation. Further reading:... View Article
Triplet is a tri-nucleotide sequence, which is specific for an amino acid. Codons are the triplets present in mRNA and anticodons are the... View Article
Anticodon is a trinucleotide sequence present on tRNA, which determines the amino acid it carries. It binds to the complementary codon present on... View Article
Only two amino acids are coded by a single genetic code. Amino acid methionine and tryptophan are coded by a single genetic code. Methionine is... View Article
DNA codes for proteins, which are essential for growth and cellular activities. DNA is transcribed into RNA, which is translated to protein. Gene... View Article
cDNA or complementary DNA is produced by reverse transcription from mRNA template. It is a DNA copy of mRNA. Further reading: Polygenic... View Article
The enzyme Reverse transcriptase catalyses the reverse transcription reaction. It is an RNA dependent DNA polymerase. It transcribes DNA from... View Article
A codon is a sequence of three nucleotides or triplets present on mRNA, which encodes for a specific amino acid at the time of translation.... View Article
Gene expression refers to the production of RNA and proteins directed by genes present in DNA. Gene expression in eukaryotes is regulated at the... View Article
DNA viruses have DNA as their genome. They can have a dsDNA (double-stranded) or ssDNA (single-stranded). The common disease-causing DNA viruses... View Article
The 5’ UTR or untranslated region is present upstream of the start codon. It is also known as the leader sequence. It increases the efficiency of... View Article
The newly transcribed pre-mRNA from a DNA template has two regions. Introns are non-coding regions of the gene and exons are the coding regions... View Article
Splicing refers to the post-transcriptional modification in the newly transcribed RNAs. It is required to make it fully functional. Splicing... View Article
RNA splicing is the process by which introns are excised from pre-RNA and exons join together to form mature and functional RNA. Processing of... View Article
