Genetic Problems Worksheet - local-brookings.k12.sd.us
Genetic Problems Worksheet: The Wuggygumples
Wuggygumples are creatures from the planet Gumpling. Wuggygumples can have stars on their bellies or no stars, pink or blue skin, wings or no wings and may or may not have polka dots. Complete the genetic crosses and short answers based on the information in the following table. If you cannot remember the definitions for the terms, USE YOUR NOTES & Punnett #1 worksheet.
|Stars on belly |B |
|No stars |b |
| |
|Pink Skin |P |
|Blue skin |p |
| |
|Wings |F |
|No Wings |f |
| |
|Polka Dots |D |
|No Polka Dots |d |
1. What is the letter that represents the RECESSIVE allele for NO WINGS? __________
2. What is the letter that represents the DOMINANT allele for POLKA DOTS? _______
3. What is the letter that represents the DOMINANT allele for stars? __________
4. Which is the DOMINANT PHENOTYPE for SKIN COLOR ? ________________
5. Which is the RECESSIVE PHENOTYPE for DOTS? __________________
6. What is the HOMOZYGOUS DOMINANT genotype for skin color?________________
7. What is the HETEROZYGOUS genotype for polka dots? ________________
8. If a Wuggygumple has stars on its belly, what are its two possible genotypes ? ___________ OR __________.
9. If a Wuggygumple has blue skin, what is the genotype for this phenotype? ______
10. What is the phenotype for the FFdd genotype? ______________ & ______________
11. What is the phenotype for the BBppFfdd genotype?
___________________ & __________________ & _________________
12. Two Wuggygumples are about to have offspring. The mother has stars on her belly with the genotype Bb. The father does NOT have stars.
DAD’s GENOTYPE = ________ MOM’s GENOTYPE = ______
What are the genotypes and phenotypes for the possible offspring for this couple?
Genotypes: Phenotypes:
__________ ______________________
__________ ______________________
• What is the probability (in %) of this couple having offspring with stars? ___%
• What is the probability of this couple having offspring without stars?___%
* * * * * * * * * * * * * * *
13. If a Wuggygumple that is HOMOZYGOUS DOMINANT for polka dots has offspring with a HOMOZYGOUS RECESSIVE wuggygumple, what will the genotype and phenotype of their potential offspring?
DAD’s GENOTYPE = ________ MOM’s GENOTYPE = ______
Genotypes: Phenotypes:
__________ ______________________
What is the probability (in %) of this couple having offspring with polka dots? ___%
What is the probability of this couple having offspring without dots?___%
14. If a Wuggygumple that is HYBRID for WINGS has offspring with a PURE RECESSIVE wuggygumple, what is the genotype and phenotype of their potential offspring?
DAD’s GENOTYPE = ________ MOM’s GENOTYPE = ______
OFFSPRING OFFSPRING
Genotypes: Phenotypes:
__________ ______________________
__________ _______________________
• What is the probability (in %) of this couple having offspring with wings? ___%
• What is the probability of this couple having offspring without wings?___%
* * * * * * * * * * * * * * *
15. If BOTH parent Wuggygumple is a HETEROZYGOUS for POLKA DOTS, what are the genotypes and phenotypes of their potential offspring?
DAD’s GENOTYPE= ________ MOM’s GENOTYPE = ______
OFFSPRING OFFSPRING
Genotypes: Phenotypes:
__________ ______________________
__________ ______________________
__________ ______________________
• What is the probability (in %) of this couple having offspring with dots? ___%
• What is the probability of this couple having offspring without dots?___%
16. If BOTH parent Wuggygumples are HETEROZYGOUS for PINK SKIN, what are the genotypes and phenotypes of their potential offspring?
DAD’s GENOTYPE= ________ MOM’s GENOTYPE = ______
OFFSPRING OFFSPRING
Genotypes: Phenotypes:
__________ ______________________
__________ _______________________
__________ _______________________
• What is the probability (in %) of this couple having PINK offspring? ___%
• What is the probability of this couple having BLUE offspring without?___%
* * * * * * * * * * * * * * *
THINK ABOUT THIS ONE!
Is it possible for a baby Wuggygumple with PINK skin to have parents that BOTH HAVE BLUE SKIN?
DAD GENOTYPE = _______ MOM GENOTYPE = ______
Yes, it is possible ________
Impossible! These parents can’t make this combination. ________
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