Chapter 14 Flashcards

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1
Q

Heritable feature

A

Character

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2
Q

Different varieties of a character

A

Trait

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3
Q

Parent generation

A

P

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4
Q

First filial generation

A

F1

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5
Q

second filial generation

A

F2

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6
Q

2 alleles for a heritable character segregate during gamete formation and end up in different gametes

A

Law of segregation

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7
Q

Cross between 2 heterozygous organisms

A

Monohybrid

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8
Q

Cross between 2 heterozygous organisms for both characters followed

A

Dihybrid

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9
Q

Each pair of alleles segregate independently of each other pair of alleles during gamete formation

A

Law of independent assortment

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10
Q

The outcome isn’t affected by what happened before

A

Independent event

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11
Q

The phenotype of herterozygotes is between the phenotypes of individuals homozygous for either alleles

A

Incomplete dominance

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12
Q

The phenotype of the heterozygote and dominant homozygote aren’t distinguishable

A

Complete dominance

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13
Q

Phenotypes affect the alles and phenotypes in separate ways.

A

Codominance

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14
Q

Alleles are not completely dominant

A

Incomplete dominance

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15
Q

Ability of a single gene cell to have many effectes

A

Pleiotrophy

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16
Q

Phenotype expression of 1 gene alters an independent inherited gene

A

Epistasis

17
Q

Caused by a recessive gene for chloride channel protein; excess secretion of mucus

A

Cystic fibrosis

18
Q

Causes RBC to change shape and hemoglobin aggregates

A

Sickle-cell disease

19
Q

Form of dwarfism

A

Achondroplasia

20
Q

Caused by dominant allele; uncontrollable movements and nervous system breaks down

A

Huntington’s disease

21
Q

What 2 ways do we use to fest a fetus for genetic disorders?

A

Amniocentesis and CVS