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Pregunta | Respuesta |
Test Cross | Testing a suspected heterozygote by crossing it with a known homozygous recessive. |
Codominant Allele | Pairs of alleles that both affect the phenotype when present in a heterozygote. |
Carrier | An individual with a recessive allele of a gene that does not affect their phenotype. |
Gene | The basic unit of inheritance by which inherited characteristics are passed from parent to offspring, consisting of a length of DNA on a chromosome. |
Allele | One alternative form of a gene, occupying a specific position (locus) on a chromosome. |
Loci | The positions along chromosomes where genes occur, so alleles of the same gene occupy the same locus. |
Genotype | The genetic constitution of an organism. |
Phenotype | The characteristics displayed by an organism; the way in which genotype is expressed (appearance of an organism). |
Dominant Allele | An allele that affects the phenotype of an organism, whether present in heterozygous or homozygous condition. |
Recessive Allele | An allele that affects the phenotype of an organism only when the dominant allele is absent (homozygous condition). |
Homozygous | A diploid organism that has inherited the same allele from both parents. |
Heterozygous | A diploid organism that has inherited different alleles from each parent. |
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