Genetics Punnett Square Problems Explained

Explore Punnett Square problems involving genetic traits such as fur color in mice, number of eyes in aliens, seed production in tomato plants, and tail length in cats. Understand dominant and recessive gene interactions through visual examples and answer key explanations.

• Genetics
• Punnett Square
• Traits
• Dominant
• Recessive

ljae Follow

Uploaded on Sep 12, 2024 | 0 Views

Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

Presentation Transcript

1. Genetics Punnett Square Problems Created by Peggy Lenz

2. Gray fur is dominant in mice over white. A purebred gray mouse is crossed with a hybrid female. What color fur may their offspring have?

3. KEY G: P:

4. g G KEY G= gray g=white GG Gg G GG Gg gg GG Gg G G:1/2 GG, 1/2 Gg P: 4/4 gray fur

5. Aliens from Saturn usually have 3 eyes. A female with 2 eyes is crossed with a purebred, dominant 3 eyed male. Will any offspring have only 2 eyes?

6. KEY G: P:

7. e e KEY E=3 eyes e=2 eyes Ee Ee E EE Ee ee Ee Ee E G:4/4 Ee P: 4/4 will have 3 eyes

8. The dominant gene S produces seeds in tomato plants. Two plants both heterozygous are crossed. Will any any of the fruit contain no seeds?

9. KEY G: P:

10. s S KEY S= seeds s= no seeds SS Ss S SS Ss ss Ss ss s G:1/4 SS, 2/4 Ss, 1/4 ss P: 3/4 seeds, 1/4 no seeds

11. INCOMPLETE DOMINANCE A long tailed cat has a genotype of LL. A Manx cat with no tail has genotype NN. A short-tailed cat has genotype LN. A female Manx cat mates with a male short-tailed cat.

12. KEY G: P:

13. KEY N N LL=long NN=no LN LN L LN=short NN NN N LL NN LN Could any of their kittens have long tails?

14. NO