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

Biology 301, chapter 7 Evolution and adaptation

by: Savannah Notetaker

Biology 301, chapter 7 Evolution and adaptation BIO 301

Marketplace > University of South Carolina > Biology > BIO 301 > Biology 301 chapter 7 Evolution and adaptation
Savannah Notetaker
GPA 3.2

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 the beginning of evolution and the different types along with genes and then also includes natural and artificial selection.
Ecology and Evolution
Dr. Megan Gamble
Class Notes
Biology: Ecology and Evolution
25 ?




Popular in Ecology and Evolution

Popular in Biology

This 2 page Class Notes was uploaded by Savannah Notetaker on Tuesday September 20, 2016. The Class Notes belongs to BIO 301 at University of South Carolina taught by Dr. Megan Gamble in Fall 2016. Since its upload, it has received 31 views. For similar materials see Ecology and Evolution in Biology at University of South Carolina.


Reviews for Biology 301, chapter 7 Evolution and adaptation


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: 09/20/16
Biology 301 Chapter 7 Evolution and Adaptation Survival - Reproduction  Speciation- formation of new species  Genotype- unique combination of an individual’s genes o DNA  RNA  Protein o RNA (mRNA, rRNA, tRNA)  Gene- a transcribed unit  Allele- alternate version of a gene  Mitosis- cell division  Meiosis- produces haploid gametes that fuse together to form diploid  Mutation- alters alleles  Polygenic- single trait is affected by many genes o Ex: height, eye color  Pleiotrophy- single gene alters many traits  Epistasis- expression of one gene controlled by another.  Homozygous- dominant or recessive o Ex: AA or aa  Heterozygous- has different alleles and has greater genetic variability o Ex: Aa o Codominance- both phenotypes are expressed o Incomplete dominance- mixture of phenotypes  Evolution  can happen through random process or natural selection o Random processes: mutation and genetic drift  Genetic drift- not driven by natural selection. Variation in the relative frequency of different genotypes in a small population. Disappearance of particular genes as individuals die. o Random variation  Bottleneck effect- environmental change that greatly reduces the number of individuals/ genetic variability  Artificial selection- controlled by humans, selection of traits o Ex: dog breeding  Natural selection- selection of traits. Controlled by the environment  Fitness- production of descendants over time  3 types of natural selection o Stabilizing selection o Directional selection o Disruptive selection


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."

Kyle Maynard Purdue

"When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the I made $280 on my first study guide!"

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."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

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.