Name:________________________
Date:____________
Class period: _____
Dragon Genetics: Analysis Questions
1. How many chromosomes of each size does the mom have to start with? _______
2. How many chromosomes of each size does the baby receive in total? _______
3. Define the term diploid using your textbook.
Definition:
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Was your baby dragon diploid? How do you know?
4. How many of each chromosome did each parent pass on to their baby dragon? ______
5. The various genotypes of your dragon were represented using code letters. How many code letters typically
have to be read together in order to determine the matching phenotype? ________
6. Describe the phenotype (appearance/ability) of a dragon with the following genotype: mm, RR, Gg, XfXf
7. What would the genotype codes be for a dragon that has the following appearance:
short neck, black and yellow spikes, horn present, blue body.
8. The fire-breathing trait is a special case because it’s linked to the sex chromosomes. How many letters for
the fire-breathing trait do males have within their genome? _______
9. Based on your answer, would males have a higher, lower, or equal chance compared to females of
inheriting the ability to breathe fire?
10. Define genome, gene, allele, genotype, and phenotype (use your textbook or the vocabulary handout).
Genome:
Gene:
Allele:
Example of an allele in the dragon genome:
Genotype:
Example of a genotype in the dragon genome:
Phenotype:
Example of dragon phenotype:
11. Mendel’s Principle of Segregation states that parents pass, at random, only one allele for every gene to the
offspring. What did you do in this activity to simulate this principle?
12. Review the original “mom” and “dad” genome. Choose 3 traits and describe the variation between parents.
(i.e. What are 3 traits that are different between mom and dad?)
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13. Look at the first generation (F1) of dragons around the room. How do the dragons compare with each
other?
14. Look at the second generation (F2) of dragons. How do their traits compare?
15. Define dominant and give two examples of dominant versions of a trait in the dragon population.
16. Define recessive and give two examples of recessive versions of a trait in the dragon population.
17. What has to be true of the genotype (the two-letter code) in order for a dragon to express the dominant form
of a trait?
18. What has to be true of the genotype (the two-letter code) in order for a dragon to express the recessive
form of a trait?