Genetics Word Problems

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Genetics Word Problems

Presentation transcript:

Genetics Word Problems Dragon Genetics

1. In dragons, the allele for fire breathing is dominant 1. In dragons, the allele for fire breathing is dominant. Dragons can be fire breathers, or non fire breathers. Show the genotypes and phenotypes of all possible dragons.

If a heterozygous fire-breathing dragon is crossed with one that does not breathe fire, how many offspring will be fire breathers?

If two heterozygous dragons are crossed, how many offspring would you expect to NOT be fire-breathers?

Also in dragons, wings are a dominant trait Also in dragons, wings are a dominant trait. If you crossed two wingless dragons, how many of their offspring would you expect to have wings?

Two winged dragons produce an offspring that does not have wings Two winged dragons produce an offspring that does not have wings. What are the genotypes of the parents?

If a purebred winged dragon is crossed with a purebred wingless dragon, how many of their offspring will be winged and what is their genotype?

A dragon with wings (Dd) is crossed with ones that does not have wings A dragon with wings (Dd) is crossed with ones that does not have wings. What percentage of their offspring will be wingless?

A cross between a dragon that breathes fire and has wings with a dragon that does not breathe fire and has no wings occurs. What are the genotypes of the parents? What are the possible gametes for each parent?

Dragon eye color has two dominant traits, blue and red, but the heterozygous eye color is purple. What type of inheritance does dragon eye color show?

A blue eyed dragon is crossed with a red eyed dragon A blue eyed dragon is crossed with a red eyed dragon. What is the probability of their offspring having red eyes?

Dragons have alleles for long horns, short horns, or no horns Dragons have alleles for long horns, short horns, or no horns. No horns is a recessive trait. What type of inheritance is this? What are all of the possible genotypes and phenotypes for the horn trait?

Colorblindness is a recessive, sex-linked trait in dragons Colorblindness is a recessive, sex-linked trait in dragons. What is the probability that a female with normal vision and male with colorblindness with have a daughter with colorblindness?