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A gene consists of a specific sequence of bases; variations in that sequence make for a different gene.
This can't be answered simply. Are we talking about prokaryotic or eukaryotic genes? If eukaryotic, there are a whole bunch of non-coding sequences that make up said gene that do not make it into the final translated product, but are required for the gene to get out of the nucleus and be translated into protein. I think the smallest gene recorded so far apparently encodes a 7amino acid protein - so the coding sequence alone for that gene would be 24 aa's (3 per each amino acid + 3 for the start codon, ATG). In my own graduate research, I have worked with genes that are over 25kb, that is, 25000 nucleotides long. There are certainly genes that are much larger than that, as well.
The gene (TGFB1) encodes for the protein Transforming Growth Factor Beta 1. http://www.ncbi.nlm.nih.gov/gene/7040 [nih.gov ok]. It's a cytokine (a signalling protein) that has lots of different effects depending on which cells are exposed to it. In one case, researchers think that it may be doing something to the cells that maintain ear bones.
This is called messenger RNA. mRNA
You take the gene that encodes HGH and put it into a plasmid that has a strong yeast promoter. You transform the yeast and select using a nutrient marker like Lucine or uracil. Make sure the plasmid has a 3' UTR from a yeast gene so that transcription stops efficiently. I'm not sure if the yeast would secrete HGH or even if it would get made/modified correctly but that's how you'd do it.
A gene consists of a specific sequence of bases; variations in that sequence make for a different gene.
This can't be answered simply. Are we talking about prokaryotic or eukaryotic genes? If eukaryotic, there are a whole bunch of non-coding sequences that make up said gene that do not make it into the final translated product, but are required for the gene to get out of the nucleus and be translated into protein. I think the smallest gene recorded so far apparently encodes a 7amino acid protein - so the coding sequence alone for that gene would be 24 aa's (3 per each amino acid + 3 for the start codon, ATG). In my own graduate research, I have worked with genes that are over 25kb, that is, 25000 nucleotides long. There are certainly genes that are much larger than that, as well.
Organisms inherit two copies of each gene, one from each one of their parents. Organisms donate only one copy of each gene in their gametes.
1st conclusion: Organisms inherit two copies of each gene, one from each parent. 2nd conclusion: Organisms donate only one copy of each gene in their gametes. Thus, the two copies of each gene segregate, or separate, during gamete formation. "hope this helped"
The gene (TGFB1) encodes for the protein Transforming Growth Factor Beta 1. http://www.ncbi.nlm.nih.gov/gene/7040 [nih.gov ok]. It's a cytokine (a signalling protein) that has lots of different effects depending on which cells are exposed to it. In one case, researchers think that it may be doing something to the cells that maintain ear bones.
A mutation is a permanent change in the DNA sequence of a gene. Mutations in a gene's DNA sequence can alter the amino acid sequence of the protein encoded by the gene. How does this happen? Like words in a sentence, the DNA sequence of each gene determines the amino acid sequence for the protein it encodes. The DNA sequence is interpreted in groups of three nucleotide bases, called codons. Each codon specifies a single amino acid in a protein. butthole
Genes, which are made up of DNA, act as instructions to make molecules called proteins.
Genes, which are made up of DNA, act as instructions to make molecules called proteins.
no alleles are what make up a gene
It is controlled by a recessive allele. The gene encodes a chloride ion channel that is required to make sweat, mucus and a few other things. One copy of the gene is sufficient to prevent cystic fibrosis, and it is only when both copies are defective that the person would have the disease and show symptoms.
This is called messenger RNA. mRNA
DNA basically contains the information needed to create protein. Each protein is encoded by a gene, which carries specific physical characteristics for each person.