New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

First Upload

by: Alexa Marie

First Upload BSC1005

Alexa Marie
GPA 3.5

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These notes cover chapter 11
Bio for Non-Majors
Dr. Rubelmann
Class Notes
25 ?




Popular in Bio for Non-Majors

Popular in Biology

This 3 page Class Notes was uploaded by Alexa Marie on Wednesday February 3, 2016. The Class Notes belongs to BSC1005 at University of South Florida taught by Dr. Rubelmann in Spring 2016. Since its upload, it has received 32 views. For similar materials see Bio for Non-Majors in Biology at University of South Florida.

Similar to BSC1005 at USF


Reviews for First Upload


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 02/03/16
Chapter 11 DNA Biology Question 1: Which of the following is true about gene expression in different cells?  Answer 1: Each cell has the full complement of genes but only certain ones are  expressed. Question 2: Alternative mRNA processing involves which two of the following? Answer 2: splicing together of exons and removal of introns Question 3: Most of the time, DNA is only loosely coiled, form called euchromatin,  which allows genes to be active. Question 4: The product of the transcription of a strand of DNA is? Answer 4: a complementary strand of RNA Question 5: The synthesis of new DNA double helix molecules from a preexisting parent  molecule is called  Answer 5: DNA replication Question 6: Which of the following is true about gene expression in different cells? Answer 6: Each cell has the full complement of genes but only certain ones are  expressed 11.1 Make sure to know After this section, be sure you can: ­ Describe the structure of a DNA molecule ­ List the steps involved in DNA replication ­ Compare and contrast the structure of RNA with that of DNA ­ List the 3 major types of RNA and describe their functions 11.2 Make sure to know how After this section, make sure you can: ­ List the steps involved in gene expression and indicate where in the cell this occurs ­ Explain what the genetic code is used for and why it is considered almost universal ­ Describe how transcription copies the information from a gene into a messenger RNA  molecule ­ List the 3 modifications that occur during mRNA processing and explain their  importance ­ Describe how translation converts nucleic acids into a protein, and list the 3 phases of  this process 11.3 Make sure to know how After reading this section, make sure you can: ­ Summarize the operation of the lac operon in prokaryotes ­ List the levels of control of gene expression in eukaryotes  ­ Distinguish between euchromatin and heterochromatin ­ Explain the role of transcription factors in eukaryotic gene regulation Statements ­The two steps involved in gene expression are translation and transcription. ­The site of protein synthesis in the cytoplasm is the ribosome. ­The double­ringed purines are adenine and guanine ­ The form of chromatin that is considred inactive is called heterochromatin ­ In alternative mRNA processing, eukaryotic gene expression is controlled when introns are removed from the original transcript and the remaining exons are spliced together  before the final transcript exits the nucleus. ­DNA transcription: The products of DNA transcription are strands of RNA & They are complementary to the DNA strand. ­ During gene expression, transcription takes place in the nucleus of the cell while  translation takes place in the cytoplasm. ­ DNA replication is described as semiconservative, meaning that duplication of DNA  results in two double helix molecules, each having one parental and one daughter strand. ­ DNA binding proteins that help RNA polymerase bind to a promoter in eukaryotic cells  are called transcription factors. ­  The difference between the P and A site on the ribosome is that the P binding site is for a tRNA attached to a peptide, while the A binding site is for newly arrived tRNAs  attached to a amino acid. ­ James Watson and Francis Crick contributed greatly to our knowledge of the structure  of the molecule known as DNA Enzyme actions process during DNA replication 1. helicase 2. DNA polymerase 3. DNA  ligase Steps of Gene Expression ­The mRNA transcript is produced in the nucleus ­ The mRNA transcript binds to the ribosome ­ The tRNA anticodon binds its complementary codon bringing its specific amino acid to  the ribosome ­ A polypeptide is synthesized as the mRNA is read and more amino acids are brought by the tRNAs ­ At termination, the ribosomal subunits and the mRNA dissociate Eurkaryotic Gene Control ­chromatin condensation: Chromatin is kept tightly coiled so that genes found therein are  inaccessible for transcription ­DNA transcription: Transcription factors bind to promoters, RNA polymerase, and  transcription activators ­mRNA processing: Introns are cut out and exons are spliced together ­mRNA translation: mRNA is not translated unless certain proteins are available in the  cytoplasm. ­protein activity: Polypeptide products of translation are not active without further  folding or alteration Chargaff’s rules about DNA ­Within a species, the number of guanine equals the number of cytosine, and the number  of thymine equals the number of adenine. ­The amount of A,t,g, and c in DNA varies between species.


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Jennifer McGill UCSF Med School

"Selling my MCAT study guides and notes has been a great source of side revenue while I'm in school. Some months I'm making over $500! Plus, it makes me happy knowing that I'm helping future med students with their MCAT."

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Parker Thompson 500 Startups

"It's a great way for students to improve their educational experience and it seemed like a product that everybody wants, so all the people participating are winning."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.