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MCAT > BIO Chem #3 > Flashcards

BIO Chem #3 Flashcards

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MCAT flashcards
1
Q

Origin of replication:

A

Pro: one per chromosome
Eu: multiple per chromosome

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2
Q

Unwinding of DNA double helix

A

Pro: Helicase
Eu: Helicase

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3
Q

Stabilization of unwound template strands

A

Pro: Single stranded DNA-binding proteins
Eu: Single stranded DNA-binding proteins

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4
Q

Synthesis of RNA primers

A

Pro:Primase
Eu:Primase

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5
Q

Synthesis of DNA

A

Pro: DNA poly III
Eu: DNA alpha and delta

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6
Q

Removal of RNA primers

A

Pro: DNA poly I
Eu: RNase H

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7
Q

Replacement of RNA with DNA

A

Pro: DNA poly I
Eu: DNA poly alpha

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8
Q

Joining of Okazaki fragments

A

Pro: DNA ligase
Eu: DNA ligase

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9
Q

Removal of positive supercoils ahead of advancing replication forks

A

Pro: DNA topoisomerase II (Gyrase)
Eu: DNA topoisomerase II (Gyrase)

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10
Q

Synthesis of telomeres:

A

Eu: Telomerase

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11
Q

Non polar amino:

A

glycine, alanine, valine, leucine, isoleucine, methionine, proline

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12
Q

Polar amino:

A

Serine, threonine, asparagine, glutamine, cysteine

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13
Q

Aromatic amino:

A

tryptophan, phenylalanine, tyrosine

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14
Q

Hydrophobic amino:

A

Alanine, isoleucine, valine, phenylalanine

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15
Q

Hydrophilic amino

A

histidine, arginine, lysine, glutamate, aspartate, asparagine, glutamine

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16
Q

Negatively charged amino:

A

aspartate( anion of aspartic acid), glutamate( anion of glutamic acid)

17
Q

Positively charged amino:

A

arginine, lysine, histidine

MCAT (7 decks)

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