Biochemistry 3381A Study Guide - Quiz Guide: Hox Gene, Messenger Rna, Nucleosome
27 May 2020
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Genetic labelling: permanent labelling of cells and their progressors creating embryos with cells which contain different genetic constitutions. > a) creation of chimera from two different species. > b) creation of transgenic dna chimeras: chick resulting from the transplantation of cells from the neural crest region of a pigmented strain of chicken into the embryo of an unpigmented strain. Genomic equivalence: each somatic cell nucleus within an organism has identical chromosomes and therefore the same set of genes evidence: dolly the sheep: the first adult vertebrate that was cloned from another adult (wilmut et al. , 1997) the same genotype might also be a different phenotype. Differential gene expression the anatomy of genes: selective mrna translation regulates which of the mrnas are translated into proteins differential protein modification regulates which proteins are allowed to remain and function in the cell. > eukaryotic dna forms a complex with proteins = chromatin. > proteins = histones (h1, h2a, h2b, h3, h4)
