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Human Genetics Exam 3 > Chapter 9 > Flashcards

Chapter 9 Flashcards

1
Q

A stands for

A

Adenine

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2
Q

T stands for

A

Thymine

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3
Q

G stands for

A

Guanine

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4
Q

C stands for

A

Cytosine

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5
Q

What is a nucleotide?

A

a single building block of DNA

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6
Q

what is in a nucleotide?

A

one deoxyribose sugar, one phosphate group, one nitrogeneous base

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7
Q

What are the purines

A

A and G

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8
Q

what are the pyrimidines?

A

C and T

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9
Q

What describes the opposing directions of the two nucleotide chains of DNA in a double helix?

A

Antiparrallelism

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10
Q

A and T, C and G are

A

Complementary base pairs

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11
Q

DNA replication is referred to as

A

Semiconservative

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12
Q

This unwinds the double helix

A

Helicase

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13
Q

This comes in after the Helicase and stabilizes the two strands - keeps DNA open

A

Binding proteins

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14
Q

this adds a RNA primer to the template strand - tells DNA polymerase where to start building

A

Primase

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15
Q

This is what builds the nucleotides

A

DNA Polymerase

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16
Q

This joins the Okazaki fragments and seals other nicks in the sugar-phosphate backbone

A

Ligase

17
Q

Origin

A

where the helicase binds to the DNA

18
Q

a trait that can be described as single-gene

A

polygenic

19
Q

genes that are influenced by the enviroment

A

multifactorial

20
Q

height, skin color, body weight

A

multifactorial traits

21
Q

this trait reflects genetic and environmental influences and arise from connection among the brain’s neurons

A

behavioral traits

22
Q

intelligence, addiction, mood disorders

A

examples of behavioral traits

23
Q

deoxyribose

A

DNA

24
Q

ribose

A

RNA

25
Q

double stranded

A

DNA

26
Q

single stranded

A

RNA

27
Q

no enzyme function

A

DNA

28
Q

some enzyme function

A

RNA

29
Q

stores information

A

DNA

30
Q

carries information

A

RNA

31
Q

stable

A

DNA

32
Q

unstable/transient

A

RNA

Human Genetics Exam 3 (3 decks)

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