Genetic Material

Genetic Material - 1 mRNA binds to ribosome 2 The codons of...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
GENETIC MATERIAL gene synthesis happens in the ribosomes means DNA has to be moved from nucleus to ribosomes in process called transcription transcription is when one strand of DNA is copied into mRNA so it can leave the nucleus RNA is single stranded, unlike DNA the ladder sugar is ribose, instead of deoxyribose in DNA G, A, C, U bases instead of G, A, C, T in DNA TRANSCRIPTION 1. The DNA splits around the place where the specific gene is located 2. RNA bases move in and copy one half of the DNA ladder 3. RNA strand (only one half of the ladder) leaves the nucleus and travels to ribosome 4. Allows DNA to stay within the nucleus the entire time TRANSLATION the information coded for in mRNA is translated into a protein molecule
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1. mRNA binds to ribosome 2. The codons of the RNA sequence are “read” 3. Then transfer RNA goes out and finds the amino acids coded for in messenger RNA 4. tRNA the amino acids together, binding them together in order to create protein coded for 5. ribosomes read the mRNA, tRNA gets the amino acids and builds the chain coded for DNA Mutation: mutations are alternations in the genetic code that are source of new variety two kinds: chromosomal mutations and point mutations mutations that happen in meiosis are capable of being passed down to offspring if the mutation occurs at the nucleotide base (point mutation), it may or may not affect the function. ex. sickle cell disease...
View Full Document

This note was uploaded on 03/02/2011 for the course ANTH 001 taught by Professor Mcfarlin during the Spring '11 term at GWU.

Ask a homework question - tutors are online