Search results
mRNA. mRNA or messenger RNA is a single stranded RNA molecule. It is complementary to the DNA and carries genetic information present in the DNA. It is translated to form proteins. The genetic codes (triplet) present on mRNA get translated to amino acids, giving rise to the functional product of a gene (proteins).
Aug 31, 2020 · Proteins are made from a sequence of amino acids rather than nucleotides. Transcription and translation are the two processes that convert a sequence of nucleotides from DNA into a sequence of amino acids to build the desired protein. These two processes are essential for life. They are found in all organisms – eukaryotic and prokaryotic.
Structure of DNA DNA is like a ladder or spiral staircase. The outside is made of a sugar-phosphate backbone with alternating sugars and phosphates and the inside "steps" are the nitrogenous bases.
b. Cutting DNA: restriction enzymes are used to cut DNA at specific sequences c. Separating and analyzing DNA: scientists use gel electrophoresis - DNA fragments are put at one end of the gel, electric current is applied, and DNA molecules arrange from largest to smallest - Can be used to solve crimes, determine paternity d.
RNA. ribonucleic acid, with a single stranded structure, comprised of nucleotides, 3 types, made based off DNA. Ribosomal RNA (rRNA) matches mRNA to tRNA during protein synthesis. checks to make sure stuff attaches. Transfer RNA (tRNA) brings amino acids to ribosomes, pairs up with codons from mRNA. Messenger RNA (mRNA)
Steps involved in transcription: 1: Enzymes start to unwind the DNA double helix in the nucleus. 2: Complimentary RNA bases join to the exposed DNA strand to form mRNA (transcription) 3: The enzyme RNA polymerase joins the RNA bases together to form mRNA (messenger RNA) NOTE: Each mRNA strand has: A start codon.
