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Honors Biology > Genetics Cards > Flashcards

Genetics Cards Flashcards

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1
Q

An allele that is only expressed when there is not a dominant allele

A

Recessive Allele

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2
Q

Any of the different versions of a gene

A

Allele

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3
Q

Having two identical alleles for a given gene

A

Homozygous

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4
Q

The genetic makeup of an organism

A

Genotype

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5
Q

An allele that, if present is always fully expressed

A

Dominant

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6
Q

An organism that has two different alleles for the same trait

A

Heterozygous

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7
Q

A sex cell, such as an egg or sperm

A

Gamete

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8
Q

Organisms that produce offspring identical to themselves

A

True Breeding

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9
Q

The physical characteristics of an organism

A

Phenotype

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10
Q

A step from parents to offspring

A

Generation

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11
Q

A cell containing only one set of chromosomes (n)

A

Haploid

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12
Q

A characteristic passed down from parents to offspring

A

Trait

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13
Q

A diagram showing the possible genetic outcomes

A

Punnett Square

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14
Q

A cell that has two sets of chromosomes (2n)

A

Diploid

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15
Q

The situation in which the phenotype of heterozygotes is intermediate between the parental phenotypes

A

Incomplete Dominance

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16
Q

The situation in which different alleles for a gene both contribute to the phenotype

A

Co-dominance

17
Q

The genes for different traits are sorted independently during gamete formation

A

Law of Segregation

18
Q

The two alleles in a pair segregate (separate from each other) into different gametes during gamete formation

A

Law of Independent Formation

19
Q

Offspring of crosses between parents with different characteristics

A

Hybrid

20
Q

Breeding an unknown genotype with a homozygous recessive to determine the unknown’s genotype

A

Test-cross

21
Q

The offspring of the parental generation

A

Filial Generation

Honors Biology (14 decks)

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