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DNA Structure and replication > DNA STRUCTURE AND REPLICATION > Flashcards

DNA STRUCTURE AND REPLICATION Flashcards

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Biology 101 flashcards
1
Q

What is DNA’s four bases

A

Adenine-Thymine ( replaced by Uracil for RNA)

Cytosine-Guanine

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2
Q

What is the back bone of DNA

A

Deoxyribose & Phosphate

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3
Q

What three parts make up a Nucleotide

A

Deoxyribose - Sugar

Phosphate- Base

Cylic Amine- Base

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4
Q

What are the two nitrogenous bases

A

Purine & Pyrimidine

Insert Picture

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5
Q

is Adenine and Guanine Pyrimidines?

A

NO Adenine and Guanine are Purines

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6
Q

Are Thymine, Uracil and cytosine Purines?

A

No, Thymines, Uracils, and Cytosines are Pyrimidines

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7
Q

What two pairs of bases have 2 hydrogen bonds?

A

Adenine-Thymine

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8
Q

What two pairs of bases have 3 hydrogen bonds?

A

Guanine - Cytosine

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9
Q

True or False, Does a Purine always have to be paired to a Pyrimidine?

A

True

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10
Q

Should the strands always be complementary. True or False

A

True

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11
Q

What does complementary strands mean?

A

When you read message on one strand you know that bitch is gunna be the same on the other strand bitch ass hoe

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12
Q

In Anti Parallel strands are they matched in opposite directions?

A

BITCH YOU KNOW IT

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13
Q

Is DNA Always read in 5 to 3 direction?

A

yes hoe

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14
Q

Explain the process of DNA Replication

A

DNA has two strands of same information

must then open up ( UNZIP)

bases are then matched perfectly (COMPLIMENTARY)

Forms two double helixes from One

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15
Q

Enzymes HP DL

A

Helicase ( unzip)

Primase ( set up base RNA)

DNA Polymerse ( concretes DNA to the RNA)

Ligase- Inspects it to make sure its perfect

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16
Q

what is the Leading strand

A

5 to 3

17
Q

what is the lagging strand

A

3 to 5

18
Q

Explain DNA HIGHLY CONDENSED

A 
DNA > DOUBLE HELIX
DOUBLE HELIX > HISTONES
HISTONES > NUCLEOSOMS
NUCLEOSOMES > CHROMOTIN
CHROMATIN > CHROMOSOMES
19
Q

what Consists of Chromosomes

A

DNA & Proteins

DNA Structure and replication (5 decks)

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