Download File

Activity 59
Gene Combo
Activity 59: Gene Combo
White Space ?:
What does it mean
when you say you
have a 50/50
chance? A 1 in 4
chance?
When you flip a coin,
does the coin
remember what you
just had or do your
chances start again?
Challenge Question:
How can tossing coins help you understand
how organisms inherit information from
their parents?
Background: Read page D-30.
Vocabulary:
Dominant Trait: the trait that is
the stronger of the two genes
given from the parents. It will also
be the trait visibly seen.
Recessive Trait: The trait that is
the weaker of the two. Will only
appear if there are NO dominant
traits.
Activity 59: Gene Combo
Coin Tossing Model
Outcome of coin toss = Trait given by parent-each
critter receives one trait from each parent.
Heads=Blue Tail
Tails=Orange Tail
Critters of Generation 3.
• Blue tail is dominant to orange. If the critter has one
blue gene, the tail will be blue. This is true for boys
and girls. Gender does not matter!
• To have an orange tail, there must NOT be any blue
genes.
• Capital B = Blue Tail
Lowercase b = Orange Tail
Activity 59: Gene Combo
• Materials: Read over the list on p D-31
• Procedure: Read p D-31 to D-32 and
check off if you understand.
• Data: All data need to be recorded on
“Gene Combo Results” worksheet.
Activity 59: Gene Combo
Analysis Questions: Answer questions #1-5
on page D-32-D-33 in your lab notebook.
Be sure to do ALL parts of the questions in
COMPLETE SENTENCES!!!
Conclusion: How did using the coins model
show how you inherit your genes from your
parents? 3-4 sentences
Notes to Self: Be sure to have colored
pencils with you EVERYDAY!