Unit 11: Basic Inheritance Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

trait

A

a physical part of your body

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2
Q

gene

A

a region of DNA which codes for a protein

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3
Q

allele

A

one version of a gene

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4
Q

lower case

A

signifies a recessive allele

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5
Q

upper case

A

signifies a dominant allele

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6
Q

Aa

A

heterozygous

a carrier of the recessive trait

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7
Q

AA

A

homozygous dominant

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8
Q

aa

A

homozygous recessive

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9
Q

genotype

A

a list of your genes

example: Aa

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10
Q

phenotype

A

the trait you have

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11
Q

pedigree

A

a family tree

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12
Q

dominant

A

an allele which appears in every generation; just one of these alleles is enough to give you the trait

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13
Q

recessive

A

an allele which can skip generations; you’d need two of these alleles to have the trait.

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14
Q

P generation

A

the parents

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15
Q

F1 generation

A

the children

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16
Q

F2 generation

A

the grandchildren

17
Q

X dominant inheritance

A

women affected more than men. Fathers pass it to daughters, no to sons

18
Q

X recessive inheritance

A

Usually only boys affected. Mothers are carriers

19
Q

Y linked

A

Only males affected

20
Q

Early onset

A

the disease or the trait shows up early in life, before the person reproduces. Example: color blindness

21
Q

Late onset

A

the disease or trait shows up late in life, after the person reproduces. Example: baldness

22
Q

symbol on a pedigree: square

A

male

23
Q

symbol on a pedigree: circle

A

female