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Biology Genetics > Genetics > Flashcards

Genetics Flashcards

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AP® Biology flashcards Biology 101 flashcards
0
Q

An organism’s physical appearance

A

Phenotype

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1
Q

An organism’s genetic makeup

A

Genotype

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2
Q

Both alleles of a pair are alike (PP or pp)

A

Homozygous

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3
Q

Two alleles in a pair are different (Pp)

A

Heterozygous

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4
Q

The likelihood that a specific event will occur

A

Probability

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5
Q

A cross in which only one characteristic is tracked

A

Monohybrid Cross

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6
Q

One of the alternative forms of a gene that governs a characteristic, such as hair color

A

Allele

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7
Q

Half the number of chromosomes it needs to have

A

Haploid

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8
Q

A cell that contains two haploid sets of chromosomes

A

Diploid

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9
Q

A haploid reproductive cell that unites with another haploid reproductive cell to form a zygote

A

Gamete

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10
Q

Offspring of crosses between parents with different traits

A

Hybrid

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11
Q

One allele was completely dominant over another

A

Complete Dominance

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12
Q

The F1 offspring will have a phenotype in between that of the parents

A

Incomplete Dominance

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13
Q

Both alleles for a gene are expressed in a heterozygous offspring

A

Codominance

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14
Q

A short segment of DNA that contains the instructions for a single trait

A

Gene

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15
Q

A genetically determined variant of a characteristic

A

Trait

16
Q

Chromosomes that have the same sequence of genes, that have the same structure, and that pair during meiosis

A

Homologous Chromosomes

17
Q

The exchange of genetic material between homologous chromosomes during meiosis

A

Crossing-over

Biology Genetics (1 decks)

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