A series of codons in part of a messenger RNA (mRNA) molecule. Each codon consists of three nucleotides, usually representing a single amino acid. The nucleotides are abbreviated with the letters A, U, G and C. This is mRNA, which uses U (uracil). DNA uses T (thymine) instead. This mRNA molecule will instruct a ribosome to synthesize a protein according to this code.
Bio 101: DNA Point Mutations, Insertions, and Deletions - Video. Great for HS Seniors or College 101 !! - Tutor: April Koch Certified Biology Teacher, M.Ed in the NC Triad & Triangle: She is great!!! http://www.wyzant.com/tutorprofile/default.aspx?id=7995850
This is a bundle of Genetic disorders and mutations. You will receive a power point presentation with follow along worksheets and answer key. There are writing task cards and three sets of problem sets. In one set the students will model DNA mutations.
Sickle Cell Anemia: An autosomal recessive inheritance caused by a point mutation of the hemoglobin beta gene (HBB) that affects the oxygen carrying pigment in red blood cells, hemoglobin. Changes in the hemoglobin-A chains of the red blood cells causes an alteration of the normal biconcave disc shape into the characteristic sickle cell shape. Image from Genes and Disease, by the National Center for Biotechnology Information (US).