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Because RNA is composed of four parts of nucleotides, there are 43 = 64 possible codons, which is 64 possible triplets of nucleotides with several sequences. Furthermore, only 20 amino acids are commonly found in proteins so which, in most cases, a one amino acid is coded for through various dissimilar codons described in the figure. The genetic code is thus said to be degenerate. In reality, only methionine and tryptophan are shown by a single codon. As a conclusion of the genetic code's degeneracy, a mutation which changes only a single nucleotide in
Figure: The genetic code.
DNA point mutation, and thus changes only a single nucleotide in the corresponding mRNA, frequently has no effect on the amino acid sequence of the encoded polypeptide.
General Protocol for Media Preparation A general protocol for media preparation is as follows: 1. Prepare stock solutions one day before the medium is to be made. 2. Wei
Q. One characteristic of the DNA molecule is its replication capability. What are the consequences of failures during the DNA replication? Ideally the DNA molecule should replicate
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Kidney impairment is one of the long term complications of diabetes mellitus. Measurement and monitoring of kidney function parameters such as urea and creatinine, in addition to u
How are the organelles of a single cell like the organs of a multicellular organism? Name two features of eukaryotic cells that prokaryotic cells lack.
Use the rules of probability to predict the ratios of progeny expected from two parents who are heterozygous for albinism. Note: Albinism is recessive to normal skin color. 1) What
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How does the structure of a crab relate to its habitat? It's difficult exoskeleton protects it for most predators & keeps water off its flesh. The claws are used for mating due
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