dominant and recessive alleles Flashcards

1
Q

what are different forms of genes called

A

alleles

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2
Q

when might genetic variation occur

A

when the offspring or child has two different copies of every gene

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3
Q

state a dominant characteristic

A

dimples

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4
Q

dominant allele

A

if one or both of parents have this allele you will too

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5
Q

recessive allele

A

ONLY if BOTH your parents have the allele you will too

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6
Q

dominant writing style

A

upper case B

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7
Q

recessive writing style

A

lower case b

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8
Q

genotype

A

combination of alleles present in organism

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9
Q

homozygous

A

two copies of the same allele
BB homozygous dominant

bb homozygous recessive

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10
Q

heterozygous

A

Bb
they have different versions of a gene

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11
Q

examples of dominant

A

dark brown hair
brown eyes
not attached earlobes
freckles
can roll tongue
straight nose

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12
Q

examples of recessive

A

no freckles
can’t roll tongue
joined ear lobes
blue eyes
blonde hair

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