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Each pea plant has a gene that determines seed color. One version of the gene is for green color, and the other version of the gene is for yellow seed color. Which of these choices is another word for the two versions of the gene for seed color?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
Which of the following is directly responsible for an acquired trait?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
Which of these choices describes a segment of DNA that determines a specific trait in a person, such as attached earlobes?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
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?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
Ryan notices that all of his friend's brothers and sisters are tall. What is the most likely explanation for this characteric?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
A snapdragon plant with red flowers is crossed with a snapdragon plant with white flowers. The offspring produced have pink flowers. Which of these conditions does this illustrate?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
Which of these choices is the definition of allele?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
Human blood types A and B show co-dominance. the alleles determine what kind of antigens are produced on the red blood cells. What type of blood cells are produced by a person that has inherited an A allele and a B allele blood?
incomplete dominance
a gene
environment
Both type A and type B
genotype
The have tall parents.
dominant and recessive traits
one of the alternative forms of a gene
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