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Genetics

This unit is focused on genetics and the transmission of traits. Beginning with using Punnett squares and pedigrees to predict possible offspring, the unit has students investigate Mendelian genetics, genetic engineering and modification, and the transmission and mutation of traits during reproduction. The unit culminates in a performance assessment that asks students to argue a topic.


Heredity & Genetics Overview

The following websites provide a helpful overview of the basic concepts and terminology used in heredity and genetics.
Nat Geo
Your Genome
(advanced topics)
University of Utah

DNA, Chromosomes & Genes

Genetics involves numerous molecular structures. DNA is considered the most important of all molecules. DNA is a double helix molecule made of repeating units called nucleotides. Chromosomes are made of DNA and regions of chromosomes that control certain traits are called genes.
Picture
Scientific American
Levels of Organization
Bozeman
YG - DNA Origami
Picture
Stated Clearly 
Genes
Stated Clearly
DNA

Environmental Factors

According to the National Institute of Environmental Health Sciences, "Nearly all diseases result from a complex interaction between an individual’s genetic make-up and the environmental agents that he or she is exposed to."
Picture
NIEHS
Sci Show

Copying (replicating) DNA

This is an advanced concept. Before a cell divides, it makes an exact copy of its unique DNA. It passes the copy to the new cell during mitosis and meiosis. This process involves numerous proteins called enzymes and complex interactions between them.

Punnett Squares

Heredity can be predicted using models. These models incorporate the concepts of dominant & recessive alleles, heterozygous & homozygous organisms, and phenotypes & genotypes.
Picture
Picture
Bozeman
ASAP Biology - Alleles & Genes
Punnett Square Calculator
SpongeBob Punnett Squares
File Size: 620 kb
File Type: pdf
Download File

Punnett Squares
File Size: 331 kb
File Type: pdf
Download File

Mahalo
Two Trait Punnett Squares
File Size: 36 kb
File Type: docx
Download File


Historical Development

The study of heredity has it's roots in Mendel's work on plants in the 1850's. The study of DNA has it's roots in several scientists' work in the 1950's.
Picture
Mendel
Crick & Watson

Human Genome Project

One of the greatest scientific achievements of all time. According to the National Institute of Health, "Completed in April 2003, the Human Genome Project gave us the ability, for the first time, to read nature's complete genetic blueprint for building a human being.
Picture
Crash Course
Biology/Medicine
Amoeba Sisters (replication)
Amoeba Sisters (RNA)

Meiosis

By now you know that a stork didn't drop you off at the hospital, meiosis did and this is how you got their genes.
Crash Course
Bozeman
Amoeba Sisters (meiosis)
Amoeba Sisters (sex linked traits)
Picture

Websites

Your Genome
Picture
BBC Documentary
NIH website
PBS NOVA Documentary

Mind = Blown

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DNA replication and meiosis are complicated processes with many molecular structures involved. If you can create a coherent and creative play that describes either process, you'll win a "4" and the hearts of geneticists everywhere.
This is a resource center for my students. I don't own any of these videos, images or ideas. I just showed up to the Internet and they followed me here.
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  • Classes
    • Science >
      • Genetics
      • Matter
      • Solar System
      • Motion
      • Force
      • Energy
      • Waves
      • Environmentalism
      • Earth Systems
      • Natural Resources
    • Mathematics >
      • Integers & Rational Numbers
      • Properties of Equality
      • Linear Functions
      • Surface Area & Volume
      • Statistics
      • Right Triangles
      • Functions & Relations
      • Linear Systems
      • Inequalities
      • Probablility
      • Transformations
      • Exponential Growth & Decay
  • Technology & Engineering
    • Ethics in Genetics
    • Space Exploration & Colonization
    • Beyond the Solar System
    • Artificial Intelligence
    • Digital World
    • Environmental Crisis
  • Assignments
    • Science
    • Mathematics
  • Growth Mindset
  • Contacts
    • Email & Phone
    • Bookcliff Middle School
    • D51