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Gregor Mendel studied genetics by crossing pea plants that had different traits. Which of these choices is an example of what Mendel described as a dominant trait?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
Ryan notices that all of his friend’s brothers and sisters are tall. What is the most likely explanation for this characteristic?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
Raylene inherited certain physical characteristics from her parents. Which of these follow is not an inherited characteristic?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
Which of these terms best describes the structure of DNA?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
What is DNA?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
Gregor Mendel observed that two plants with purple flowers could produce some offspring with white flowers and some offspring with purple flowers. Which of the following did Mendel use to explain this result?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
Which of these choices describes a segment of DNA that determines a specific trait in a person, such as attached earlobes?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
Red flowers (R) are dominant to white flowers (r). What percent of offspring would have red flowers if a plant with a red flower phenotype and the genotype Rr was crossed with another plant with a red flower phenotype and the genotype Rr?
a type of molecule that determines the traits that an individual inherits
gene
They have tall parents.
dominant and recessive traits
a trait that is present when an offspring inherits at least one dominant “factor” (allele)
75
double helix
long fingernails
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