Class notes
Chapter 21 - DNA Biology and Technology
- Course
- Institution
- Book
This file covers the 21st chapter of the textbook Human Biology by Sylvia Mader for the Biology course () in UoS
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
TEST BANK FOR HUMAN BIOLOGY, 12TH EDITION– SYLVIA MADER
-
Chapter 20 - Patterns of Genetic Inheritance
-
Chapter 18 - Patterns of Chromosome Inheritance
Seller
Follow
williamboutros
Content preview
Chapter 8 - DNA Biology and TechnologyDNA is the genetic material that is found in the form of chromosomes, mostly in the nucleus
of eukaryotic cells
The genetic material (DNA) must be able to:
Replicate to be passed on to the next generation
Store information
Undergo mutations to provide genetic diversity
1
,DNA & RNA Comparison
Similarities Differences
Both are nucleic acids DNA is double stranded while RNA is single stranded
Made of nucleotides DNA has thymine (T) while RNA has uracil (U)
Have sugar-phosphate RNA is also found in the cytoplasm as well as the nucleus while
backbones DNA is not
Found in the nucleus Deoxyribose is in DNA while there's ribose in RNA
Proteins
Composed of subunits of amino acids
Sequence of amino acids determines the shape of protein
Synthesized at the ribosomes
Important for diverse functions in the body including hormones, enzymes and transport
Can denature causing a loss of function
2
, Gene Expression
Two Steps:
Transcription
A portion of DNA (gene) is read to make a mRNA in the nucleus of the cells · (i.e.: a sequence of nu
Translation
Reading the mRNA to make a protein in the cytoplasm · (i.e., a sequence of nucleotides in mRNA is
3
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller williamboutros. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now