Discrete vs Continuous
True or false: Blood type is a discrete variation.
What is true
A dominant allele is written using what type of letter?
What is a Capital Letter?
Punnett squares show the probability of different _______.
What is phenotypes and genotypes
Mutations can be harmful, harmless, or ________.
What is helpful
Variation with a spectrum of values.
What is continuous variation
You need two of these to show a recessive trait.
What is a recessive alleles
Bb × bb → percent recessive offspring?
What is 50%
UV rays can cause this harmful DNA change.
What is skin cell mutation → skin cancer
Foot size and height belong to this category.
What is continuous variation
Someone with Bb will have which eye colour?
What is brown
Bb × Bb → percent recessive offspring?
What is 25%
This mutation allows adults to digest milk.
What is lactose tolerance
Attached vs unattached earlobes are this type of variation.
What is discrete variation
True or false: dominant traits are always common.
What is false
Phenotype = ________ expression of a trait.
What is physical
A mutagen is something that causes…
What is DNA mutations
Name one discrete and one continuous trait.
What is discrete: ie. dimples, eye color, hitch hikers thumb
What is continuous: ie. height, skin color, foot size,
Two genotypes that show the dominant trait.
What is BB, Bb
A parent with blue eyes MUST have this genotype.
What is bb
True or false: all mutations are visible.
What is false