Find
Search for over 200,000 study notes and past assignments!
Swap
Download study resources by swapping your own or buying Exchange Credits.
Study
Study from your library anywhere, anytime.
1 Found helpful • 142 Pages • Complete Study Notes • Year: Pre-2021 • Previously uploaded under: BIOL1003 - Human Biology
HUMAN BIOLOGY. LECTURE 1: DNA and CHROMOSOMES Objectives to understand: • the evidence that DNA encodes genetic information • the structure of DNA • how DNA is replicated • How information in DNA is transecribed into protein • How DNA is packed into chromosomes • The normal human karyotype and some abnormal karyotypes Genes • What was known 1940-50 o Hereditary “factors” causing different traits; physical nature unknown o Carried on chromosomes o Chromosomes consist of protein and DNA o Proteins→ known as key components of body; 20 amino acids know o DNA known to consist of nucleotides but structure not known o Experiements showed SNA was a hereditary material e.g. injecting live mice with different strains to determine an outcome- the mice injected with s strain died and the mice injected with r strain survived→ the s strain was then treated with different enzymes to destroy different parts of the strain→ in all cases the DNA of heat killed strain was intact hence able to pass onto each cases→ allowing transfer of information → destroying the DNA the ability to become pathogenic was destroyed. • Genes made of DNA • Genes are coded instructions for making everything the body needs, especially proteins • A gene is any given segment along the DNA that encodes instructions that allow the cell to produce a specific product e.g. a protein
This document is 25 Exchange Credits
More about this document:
|
|
This document has been hand checkedEvery document on Thinkswap has been carefully hand checked to make sure it's correctly described and categorised. No more browsing through piles of irrelevant study resources. |
|
|
This is a Complete Set of Study NotesComplete Study Notes typically cover at least half a semester’s content or several topics in greater depth. They are typically greater than 20 pages in length and go into more detail when covering topics. |
|
|
What are Exchange Credits?Exchange Credits represent the worth of each document on Thinkswap. In exchange for uploading documents you will receive Exchange Credits. These credits can then be used to download other documents for free. |
|
|
Satisfaction GuaranteeWe want you to be satisfied with your learning, that’s why all documents on Thinkswap are covered by our Satisfaction Guarantee. If a document is not of an acceptable quality or the document was incorrectly described or categorised, we will provide a full refund of Exchange Credits so that you can get another document. For more information please read Thinkswap's Satisfaction Guarantee. |
Studying with Academic Integrity
Studying from past student work is an amazing way to learn and research, however you must always act with academic integrity.
This document is the prior work of another student. Thinkswap has partnered with Turnitin to ensure students cannot copy directly from our resources. Understand how to responsibly use this work by visiting ‘Using Thinkswap resources correctly’.
Browse USYD Subjects
