Modern Genetics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Multiple alleles | three or more forms of a gene that codes for a single trait
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Carrier is a person | who has one recessive and one dominant allele for a trait
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Genetic disorders are caused by | DNA mutations or changes in chromosomes
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Pedigree chart | predicts the probability of a baby having a particular trait
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Genetic disorders | an abnormal condition that a person inherits through genes or chromosomes
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Geneticists use a pedigree | to trace the inheritance of traits in humans
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A pedigree is | a chart that tracks which members of a family have a particular trait
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Karyotype | a picture of the chromosomes in a cell
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Cloning results in two organisms that are | genetically identical
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Genome | all the DNA in one cell of an organism
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Inbreeding | the form of selective breeding that crosses parents with the same or similar sets of alleles
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Genetic engineering | the transfer of genes from one organism to another
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An example of genetic engineering | creating human insulin to treat people with diabetes
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Sickle-cell disease | a genetic disorder that results in abnormally shaped blood cells
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Cystic Fibrosis | a genetic disorder that causes the body to produce unusually thick mucus in the lungs and intestines
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the purpose of the Human Genome Project | to identify the DNA sequence of every gene in the human genome
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Hemophilia is caused by a | recessive allele on the X chromosome
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The sex chromosomes of a male human are | XY
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Down syndrome is a genetic disorder in which | an extra chromosome is added to a pair
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Blood type is controlled by | a gene with multiple alleles
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The variations of skin color is controlled by | many genes
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Sex-linked traits are more common in males than in females because | a recessive allele on the X chromosome will always produce the trait in a male
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Many characteristics are affected by interactions between | genes and the environment
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Height is a human trait that | can be altered by variations in the environment
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Height in humans is controlled by | at least four genes
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To produce human proteins | geneticists must know the DNA bases that codes for the protein
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Created by:
Mrs. Gordon
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