BHS Biology Guide

Introduction to Genetics and Patterns of Inheritance

Biology

Quarter 3

McGraw Hill Module 10 & 11

● Ratios

● Heterozygous

K-12 LEARNING PROGRESSIONS (via USBE Core Guides)

Standard 3.2 Standard 3.3

END OF THE UNIT COMPETENCY WITH LANGUAGE SUPPORTS

Standard 3.2 Using Computational Thinking: Representation Students identify and describe various inheritance patterns using mathematical representations to show: ● The cause and effect relationships between genes found on chromosomes and the resulting traits observed in an organism. ● Different inheritance patterns show different ratios in gene expression. Mathematical modeling Students use the mathematical representations to explain and predict: ● Inheritance patterns based on gene expression. ● The likelihood of a trait being passed from parent to offspring based on data in a Punnett square or pedigree. Analysis Students use the analysis of mathematical ratios from genetic crosses of potential parental traits to identify patterns of inheritance in offspring. Standard 3.3 Engaging in Argument from Evidence: Developing the claim Students make a claim that includes the idea that inheritable genetic variations may result from: ● New genetic combinations through meiosis; ● Viable errors occurring during replication; ● Mutations caused by environmental factors; and ● The infuence of environmental factors on gene expression. Identifying scientifc evidence Students identify and describe* evidence that supports the claim, including: ● Variations in genetic material naturally result during meiosis when corresponding sections of chromosome pairs exchange places. ● Genetic mutations can occur due to: a) errors during replication; and/or b) environmental factors. ● Genetic material is inheritable.