Flashcards
Unit 4 : Genetics | Chromosomes & The Mechanism Of Inheritance
Cards in this deck (12)
- 1Test CrossTesting a suspected heterozygote by crossing it with a known homozygous recessive.
- 2Codominant AllelePairs of alleles that both affect the phenotype when present in a heterozygote.
- 3CarrierAn individual with a recessive allele of a gene that does not affect their phenotype.
- 4GeneThe basic unit of inheritance by which inherited characteristics are passed from parent to offspring, consisting of a length of DNA on a chromosome.
- 5AlleleOne alternative form of a gene, occupying a specific position (locus) on a chromosome.
- 6LociThe positions along chromosomes where genes occur, so alleles of the same gene occupy the same locus.
- 7GenotypeThe genetic constitution of an organism.
- 8PhenotypeThe characteristics displayed by an organism; the way in which genotype is expressed (appearance of an organism).
- 9Dominant AlleleAn allele that affects the phenotype of an organism, whether present in heterozygous or homozygous condition.
- 10Recessive AlleleAn allele that affects the phenotype of an organism only when the dominant allele is absent (homozygous condition).
- 11HomozygousA diploid organism that has inherited the same allele from both parents.
- 12HeterozygousA diploid organism that has inherited different alleles from each parent.
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- IBD Biology (Unit 4 : Genetics) Flashcards on Unit 4 : Genetics | Chromosomes & The Mechanism Of Inheritance, created by cloud.berry on 28/05/2013.
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