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Related Flashcards
Cards In This Set
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What are genes?
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Sequences of DNA that code for a trait.
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What is a trait?
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A distinguishing quality or characteristic.
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What are Chromosomes?
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Colored strands of DNA.
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What is DNA?
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The carrier of genetic information
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What is the Genotype of an organism?
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Its genetic makeup, or allele combinations.
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What is the Phenotype of an organism?
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Its physical appearance or its visible traits.
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What are autosomes?
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The numbered chromosomes from 1 to 22.
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What are sex chromosomes?
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XX or XY chromosomes.
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What are dominant traits?
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They are traits where you only need one copy of the gene for the trait to show.
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Do dominant traits skip a generation or not?
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They do not skip a generation.
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What are recessive traits?
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They are traits where you need two copies of the gene for the trait to show
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Can recessive traits skip generations or not?
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They can skip generations.
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What are X-linked Recessive or Sex-linked traits?
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They are trais where females need two copies of the gene for the trait to show and males only need one.
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What are heterozygous chromosomes?
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Chromosomes that have two different alleles, one that is dominant and one that is recessive. a.k.a as a "carrier."
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What are homozygous chromosomes?
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Chromosomes that have two copies of the same allele. There are two dominant alleles and two recessive alleles
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