heredity Flashcards

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1
Q

the passing of genetic traits from parent to offspring

A

Heredity

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2
Q

the trait observed in the first generation when parents that have different traits are bred

A

Dominant Trait

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3
Q

a trait that reappears in the second generation after disappearing in the first generation when parents with different traits are bred

A

Recessive Trait

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4
Q

one set of instructions for an inherited trait

A

Genes

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5
Q

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

A

Alleles

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6
Q

an organism’s appearance or other detectable characteristic

A

Phenotype

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7
Q

the entire genetic makeup of an organism;also the combination of genes for one or more specific traits

A

Genotype

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8
Q

the likelihood that a possible future event will occur in any given instance of the event

A

Probability

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9
Q

a process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells

A

Meiosis

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10
Q

one of the pair of chromosomes that determine the sex of an individual

A

Sex chromosomes

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11
Q

a diagram that shows the occurrence of a genetic trait in several generations of a family

A

Pedigree

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12
Q

deoxyribonucleic acid, a molecule that is present in all living cells and that contains the information that determines the traits that a living thing inherits and needs to live

A

DNA

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13
Q

in a nucleic-acid chain, a submit that consists of a sugar, a phosphate, and a nitrogenous

A

Nucleotide

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14
Q

the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.

A

Mutations

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15
Q

ribonucleic acid, a molecule that is present in all living cells and that plays a role in protein production

A

RNA

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16
Q

a cell organelle composed of RNA and protein; the site of protein synthesis

A

Ribosome