17 Questions
What is the term for the alleles an individual possesses for a particular characteristic?
Genotype
Which of the following is an example of a recessive trait?
An allele that will only have an effect if the other allele is also recessive
What is a Punnett square used for?
To predict the results of a genetic cross
What is the term for a version of a gene that produces the same phenotype whether its paired allele is identical or different?
Dominant allele
What is the physical material that carries the instructions for a characteristic?
A section of DNA
What is the term for the physical expression of an individual's genotype?
Phenotype
What is the genotype of a male with brown eyes in the given cross?
BB
What is the phenotype of a female with genotype bb in the given cross?
Blue eyes
What is the purpose of a Punnett square?
To predict the results of a genetic cross
What is the correct way to set up a Punnett square?
Female alleles in the top row and male alleles in the left-hand column
What is the relationship between the genotype BB and the phenotype of brown eyes?
BB is dominant to brown eyes
What is the term for a characteristic that is expressed when an individual has one or two copies of a particular allele?
Trait
What is the probability of a offspring having blue eyes if the parents have genotypes BB and bb respectively?
0%
What is the purpose of a Punnett square?
To predict the results of a genetic cross
What is the difference between a dominant and recessive trait?
A dominant trait is always expressed, while a recessive trait is only expressed when an individual has two copies of the allele
What is the term for the physical characteristic of an organism, such as eye color?
Trait
What is the term for the genetic makeup of an individual?
Genotype
This quiz covers the basics of genetics, including genes, traits, and alleles. It also explores how genes are passed down from parents to offspring and how to use a Punnett square to predict the results of a genetic cross.
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