Tinkering with InheritanceBy: Ashley Whetham, Ray Salinas, and Sinead Ahmed

Selective Breeding

Selective Breeding The selective breeding

process is when you cross organisms with dominant alleles of the desired traits, when you receive the offspring, called a hybrid, it most likely has the desired traits

Organisms that can be selectively breed are: Cows which are breed for the areas they live in, or dairy/ meat cows; chickens for meat and eggs; and pigs for which type of meat you

want; also they can be breed for fast metabolism or growth

Selective breeding Pros and Cons

Pros1.Helps solve the problem of world hunger by creating varieties, which will make more efficient use of scarce land.2. Lowers the prices for the buyer

Cons1. Fast growing for

the animal can result in defects

2. Not safe for the animal

Inbreeding

Inbreeding Inbreeding is the use of the same organism

with the same characteristics Ex. Beef cows breed with beef cows Ex. Huskies breed with huskies Ex. Poodle breed with another poodle - all of these animals create an almost exact copy of the parents

Inbreeding pros and cons Pros- 1. Continues on the Breed;

prevents extinction 2. Keeps certain traits that you want Cons- 1. Passes on genetic defects for

the next generations to come 2. the parents can transfer unwanted characteristics to the offspring

Hybridization

Hybridization Hybridization is the process of mixing different

organisms together to make the best possible organism

Organisms that are breed together Ex1. milk and beef cows mixed together to create a cow that can do bothEx2. Chickens and Hens combined to create a chicken for meat and eggsEx3. plants that are breed for food production and disease defender traits

Hybridization Pros and Cons

Pros 1.Creates more desired traits in the new organism2.Makes a brand new organism with new abilities Cons1. Creates new undesirable diseases2. Creates undesirable mutations

Works Cited http://

www.ciwf.org.uk/includes/documents/cm_docs/2008/s/science_worksheets_selective_breeding.pdf

http://www.biology-online.org/2/12_selective_breeding.htm

Biology textbook http://

www.biology-online.org/biology-forum/about814.html

The End!!