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What factors can affect a person’s height?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
What is a pedigree?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
Why are sex-linked traits more common in males than in females?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
Which combination of sex chromosomes results in a male human being?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
What are multiple alleles?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
What controls variations in skin color among humans?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
Why does height in humans have such a wide variety of phenotypes?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
How does a geneticist use pedigrees?
Height is controlled by at least four genes.
A person’s diet
Three or more forms of a gene that code for a single trait
a chart that tracks which members of a family have a particular trait
to trace the inheritance of traits over generations of families
both genes and environmental factors
A recessive allele on the X chromosome will always produce the trait in a male.
XY
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