inheritance Flashcards

(14 cards)

1
Q

allele

A

different forms of the same gene/ variation of the gene

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2
Q

genotype

A

the combo of alleles determined by letters

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3
Q

homozygous

A

inherited two alleles that are the same AA or aa

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4
Q

Heterozygous

A

inherited alleals that are different Aa

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5
Q

phenotype

A

physical trait that they display determined by genotype

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6
Q

complete dominance

A

when atleast one alleles are dominant

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7
Q

punnet square steps

A
  1. state alleles B=brown b=brown
  2. write the cross your doing brown eyes (Bb) x blue eyes (bb)
  3. draw punnet square
    4.phen and geno types ratios and probiility
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8
Q

Incomplete Dominance

A

where neither allele is dominant there is now a blended phenotype (both alleles have different letters RR WW = RW

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9
Q

CO Domiance

A

where both aleals are equally dominant both traits will be shown ( white and black spots)(RR WW = RW

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10
Q

Sex Linkage

A

any gene found on a sex chromosome is a sex linked trait

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11
Q

species

A

organisms that can successfully interbreed to produce viable and fertile offspring

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12
Q

natural selection

A

acts on phenotypes of individuals so that some survive and reproduce while others don’t. through this favourable traits are inherited and are passed on

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13
Q

VEST

A

V- populations have variation between organisms
E- Environmental factors act on populations
S-individuals with most suited phenotype are selected therefore survive and reproduce T- Over time the alleles are passed onto generation therefore population evolves

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14
Q

Evolution

A

is the change in the characteristics of a species over many generations

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