Inheritance Flashcards

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1
Q

Define genotype

A

genetic combination for an organism

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2
Q

Define phenotype

A

expression of the genotype and its interaction with the environment

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3
Q

Define alleles

A

different forms of the same gene

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4
Q

Define gene

A

short section of DNA that codes for a specific sequence of a.a

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5
Q

Define nucleotide

A

monomers which make up DNA and RNA - base, pentose sugar, phosphate

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6
Q

Define locus

A

location of gene on chromosome

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7
Q

Define homozygous

A

a pair of homologous chromosomes carrying the same 2 alleles for a single gene

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8
Q

Define heterozygous

A

pair of homologous chromosomes carrying 2 different alleles for a single gene

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9
Q

Define monohybrid

A

genetic inheritance cross of a characteristic determined by 1 gene

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10
Q

Define dihybrid

A

inheritance of 2 different characteristic controlled by 2 different genes in a chromosome

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11
Q

Define codominant

A

both alleles expressed in the phenotype

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12
Q

Define sex linkage

A

gene whose locus is on x/y chromosome

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13
Q

Define multiple alleles

A

more than 2 alleles for a characteristic but only 2 can be present in an organism

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14
Q

Define epistasis

A

presence of an allele/gene that masks the expression of a different pheotype

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