Genetics Flashcards

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1
Q

Mendel’s Principal of Segregation?

A

1/2 of genes are passes on, one carries one allele, the other carries the other.

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2
Q

gene?

A

distinct particles that stay the same from one generation to the next

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3
Q

allele

A

2 copies of each gene in sex cells

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4
Q

dominant allele

A

will show if paired with a recessive allele

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5
Q

recessive allele

A

un expressed

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6
Q

heterozygous organism

A

genes are different

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7
Q

homozygous organism

A

genes are the same

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8
Q

genotype

A

set of genes

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9
Q

phenotype

A

observable trait

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10
Q

Mendel’s Principal of Independent Assortment

A

you can get different traits from different ancestors

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11
Q

How does Meiosis contribute to independent assortment?

A

crossing over between chromatids results in recombinations

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12
Q

Chromasome

A

genetic info coded in carbon formed in covalent bonds

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13
Q

Cause of genetic mutation

A

breaks in covalent bonds

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14
Q

How does ionizing radiation damage DNA?

A

breaks covalent bonds

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15
Q

Why are bone marrow and gastrointestinal cells more vulnerable to radiation?

A

reproduce more oftern

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16
Q

Why do UV and Radon cause cancer?

A

damage covalent bonds