Why do you think there are equal amounts of cytosine and guanine and equal amounts of adenine and thymine in the DNA of a cell?
Answers
Ans There should be equal amounts of each base because Adenine binds to thymine and Guanine binds to cytidine. Purines bind to pyrimidines. That is why when you have a certain amount of Guanine nucleotides need to have similar amount of Cytidine nucleotides. Same thing goes for A-T base pairs. The only thing that is a little different is the amount of G-C base pairs relative to the A-T percentage. The human Genome is roughly 60% GC rich while the other 40% is AT
2 Ans By the deletion of nitrogen base, even one it can result in mutation, a totally different protein, or a protein that won't work properly, if at all. For example, if normal mRNA strand is AUG AAC CCC AAA(which will result in amino acid sequence: Met Asn Pro Lys), if let say G in mRNA strand is deleted, then we get AUA ACC CCA AA (this results in: Ile Thr Pro) which is totally different from what it suppose to be.
3 Ans Proteins are polymers of amino acids covalently linked through peptide bonds into a chain.
4 Ans proteins are created in the body by condensation of amino acids under the influence of enzyme catalysts, using patterns or direction from the nucleic acids in the cells.