Chapter 15 Flashcards

1
Q

Heritable feature of an organism that varies among individuals(freckles present)

A

Character

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2
Q

Variety or state of a character, such as a white flower or no freckles

A

Trait

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3
Q

Functional unit of heredity

Nucleotide sequence determines the primary structure of all polypeptides and proteins

A

Structural gene

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4
Q

Alternative form of a gene which occurs at the same location on the homologous chromosomes

A

Allele

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5
Q

Actual alleles present for a given gene on homologous chromosomes

Expressed with letters

A

Genotype

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6
Q

Outward expression of a genotype or what the trait actually looks like

A

Phenotype

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7
Q

Genotype with the same alleles

A

Homozygous

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8
Q

Genotype with different alleles

A

Heterozygous

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9
Q

Allele expressed in a phenotype when a genotype is heterozygous

A

Dominant allele

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10
Q

Allele not expressed in the phenotype when genotype is heterozygous

A

Recessive allele

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11
Q

Genetic condition which occurs when neither allele is dominant over the other but are expressed

A

Co dominant

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12
Q

Ancestral line

A

Pedigree

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