Unit 5: Heredity
In this unit, we are going to investigate how characteristics of one generation are passed on to the next and how individuals of the same species (even siblings!) can have different characteristics. We will start by learning about how genes in DNA make different proteins, then we will look at how chromosomes are organized to be passed on to the next generation. Finally, we will learn about many of the different inheritance patterns that exist and how technology may change things in the future!
Protein Synthesis
DNA vs RNA
Transcription
Translation
Mutations
Meiosis
Meiosis
Where do babies come from?
Genetic Inheritance
Learning Standards
HS-LS1-1. Construct a model of transcription and translation to explain the roles of DNA and RNA that code for proteins that regulate and carry out essential functions of life.
HS-LS3-1. Develop and use a model to show how DNA in the form of chromosomes is passed from parents to offspring through the processes of meiosis and fertilization in sexual reproduction.
HS-LS3-2. Make and defend a claim based on evidence that genetic variations (alleles) may result from (a) new genetic combinations via the processes of crossing over and random segregation of chromosomes during meiosis, (b) mutations that occur during replication, and/or (c) mutations caused by environmental factors. Recognize that mutations that occur in gametes can be passed to offspring.
HS-LS3-3. Apply concepts of probability to represent possible genotype and phenotype combinations in offspring caused by different types of Mendelian inheritance patterns.
HS-LS3-4(MA). Use scientific information to illustrate that many traits of individuals, and the presence of specific alleles in a population, are due to interactions of genetic factors and environmental factors.