Transcript Dragon Genetics

Dragon Genetics
Female Dragon
Female Traits
• Wings:
• Forelimbs:
• Hindlimbs:
• Tail Shape:
Dragon Genetics
Male Dragon
Traits:
• Wings
• Forelimbs
• Hindlimbs
• Tail Shape:
Do the dragons have to have
identical genes to look the same?
Answer on the handout
Genotypes- describe on the handout
Female’s Genotype
Male’s Genotype
What do you think this dragon looks
like?
• Wings:
• Forelimbs:
• Hindlimbs:
• Tail:
Female Phenotype
• Wings:
• Forelimbs
• Hindlimbs
• Tail
What does this dragon look like?
• Wings:
• Forelimbs:
• Hindlimbs:
• Tail:
Male Genotype
• Wings:
• Forelimbs
• Hindlimbs
• Tail
Vocabulary
• The gene for wings is dominant and the gene
for no wings is recessive.
• What does dominant mean?
• What does recessive mean?
Genotype and phenotype
• Look back at the slides –
• What does genotype refer to?
• What does phenotype refer to?
Guess the Father’s Genes
• Wings
• Forelimbs
• Hindlimbs
• Tail:
Indicating Dominant and Recessive
• We usually use a single
letter to indicate any trait:
– Capital letter for the
dominant trait
– Lower case for the
recessive trait
Dominant / Recessive
• Wings
• Forelimbs
• Example – for tall or short
we might use T for Tall
• Hindlimbs
and t for short
• How would you indicate • Tail
each of the 4 traits we’ve
looked at:
Hetero and Homozygous
• Having the same gene for a trait
on both parental chromosomes is
homozygous
• Having a different gene for a trait
on each parental chromosome is
heterozygous
• This dragon is heterozygous for
which trait?
• Homozygous for which trait?
What genotype and phenotype?
• What is the genotype for a dragon that is
heterozygous for wings?
• What is the phenotype for a dragon that is
heterozygous for wings?
• What is the genotype for a dragon that is
homozygous for no hindlimbs?
• What is the phenotype for a dragon that is
homozygous for no hindlimbs?