Punnett Squares—Gene Sorting and Expression—3 Worksheets

Punnett Squares—Gene Sorting and Expression—3 Worksheets
Punnett Squares—Gene Sorting and Expression—3 Worksheets
Punnett Squares—Gene Sorting and Expression—3 Worksheets
Punnett Squares—Gene Sorting and Expression—3 Worksheets
Punnett Squares—Gene Sorting and Expression—3 Worksheets
Punnett Squares—Gene Sorting and Expression—3 Worksheets
Punnett Squares—Gene Sorting and Expression—3 Worksheets
Punnett Squares—Gene Sorting and Expression—3 Worksheets
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1 MB|7 pages
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Product Description
As helpful as Punnett squares are for studying Mendelian genetics, many students find them baffling. This series of three worksheets walks them through the process step by step. Once students complete the third worksheet they’ll have a helpful reference sheet showing all of the possible gene crosses. Then they can use this sheet throughout their genetics study to determine genotypes based on frequencies of traits. This simple, no-prep activity can be done as a class or individually.

Use this to learn and reinforce answers to questions such as:
❑ How do you write a genotype using letters?
❑ How many combinations of genotypes are there for a given cross?
❑ How many combinations of phenotypes are there for a given cross?
❑ Are genes always obvious in progeny? Why or why not?

Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

Concepts Addressed
♦ Genes are passed from parent to offspring in a specific way.
♦ Each parent passes half of its genes to each of its offspring
♦ Offspring may or may not appear like their parents depending which genes are transmitted.

Materials Needed 
Copies of student sheets

Time Required 
This activity takes about 40 minutes though discussion can increase that time

Student Sheets
Three step-by-step worksheets

Connect with me…
Click here to visit my website to find out about teaching ideas and resources. • If you enjoy this product, please leave feedback   to earn credits for future purchases! • If you have questions or problems, please let me know in the Q&A section and I’ll get back to you asap.

Terms of Use
Copyright © Carolyn Balch. All rights reserved by the author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.
Total Pages
7 pages
Answer Key
Included
Teaching Duration
40 minutes
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$3.00
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