Alleles
These are different forms of the same gene.
What are alleles
This type of allele is shown with a capital letter.
What is a dominant allele
This word describes having two identical alleles.
What is homozygous
This word describes having two different alleles for the same gene.
What is heterozygous
This tool is used to predict the possible offspring of a genetic cross.
What is a Punnett square
You inherit one allele for each gene from each of these people.
Who are your parents
This type of allele is only expressed when two are present.
What is a recessive allele
BB and bb are examples of this type of genotype.
What is homozygous
A heterozygous genotype is displayed as a __________ letter and ____________ letter.
What is capital and lower case
A Punnett square helps predict this, not guarantee it.
What is probability
A gene for eye color might have brown and blue versions; these versions are called this.
What are alleles
If a dominant allele is present, this happens to the recessive allele.
What is it masked (or hidden)?
This type of homozygous genotype shows the recessive trait.
What is homozygous recessive
A heterozygous genotype will show this trait.
What is the dominant trait
In a Bb × Bb cross, this percentage of offspring are expected to be bb.
What is 25%
This is the letter combination (like Bb) used to represent alleles for a trait.
What is a genotype
A person with Bb will show this type of trait.
What is the dominant trait?
True or False: A homozygous dominant genotype always shows the dominant trait.
What is true
True or False: A heterozygous organism can show a recessive trait.
What is false
How many boxes are in a basic Punnett square?
What is 4
This term describes how an organism looks or what traits it shows.
What is a phenotype
This term describes the genetic makeup of an organism.
What is genotype
If two parents are bb, all offspring will have this genotype.
What is bb (homozygous recessive)?
A cross between two heterozygous parents results in this ratio of phenotypes.
What is 3 dominant : 1 recessive?
If a Bb x bb cross, what is the probability that the dominant trait will show?
What is 50%