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Biology > Chapter 8--> From DNA and Protein > Flashcards

Chapter 8--> From DNA and Protein Flashcards

1
Q

Who found a ‘transforming principle’

A

Fredrick Griffith

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2
Q

S form is deadly while the R form was

A

Not deadly

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3
Q

What happened to the mouse injected with heat killed S bacteria?

A

The mouse died

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4
Q

Oswald Avery

A

identified DNA as the transforming principle

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5
Q

Avery isolated and…

A

Purified Griffith’s transforming principle

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6
Q

Alfred Hershey and Martha Chase confirmed that…

A

DNA is the genetic material

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7
Q

Hershey and Chase studied viruses that…

A

infect bacteria, or bacteriophages

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8
Q

Tagged DNA was found inside the bacteria;

A

tagged proteins were not

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9
Q

DNA structure is the…

A

same in all organisms

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10
Q

DNA is composed of what four types of nucleotides

A
  1. Phosphate Group
  2. Deoxyribose Sugar
  3. Nitrogen-containing base
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11
Q

What are the four nitrogen changing bases?

A

1.Thymine
2.Adenine
3.Cytosine
4.Guanine

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12
Q

Double Helix is made up of a…

A

Sugar-phosphate backbone on the outside with bases on the inside

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13
Q

A=

A

T

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14
Q

C=

A

G

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15
Q

The backbone is connected by…

A

Covalent bonds

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16
Q

Pyrimidine (single ring) pairs with…

A

Pyrimidine (double ring)

17
Q

The bases are connected by…

A

Hydrogen bonds

18
Q

A and G are what kind of bases?

A

Purine

19
Q

T and C are what kind of bases?

A

Pyrimidine

20
Q

Adenine and Guanine are composed of how many rings?

A

Two

21
Q

Thymine and Cytosine are composed of how many rings?

A

One

22
Q

DNA is what kind of acid?

A

Deoxyribinucleic Acid

23
Q

RNA is what kidn of acid?

A

Ribonucleic Acid

24
Q

What is DNA?

A

A self replicating material that is present in nearly all living organisms- carries genetic information

25
Q

What is RNA?

A

A nucleic acid present in all living cells- is to act as the messenger carrying instructions from DNA for controlling synthesis of proteins

26
Q

How many strands does DNA have? What kind of helix is it?

A

2 strands, double helix

27
Q

DNA is held together by what kind of bonds?

A

Hydrogen

28
Q

What is the DNA nucleotide made up of?

A

Deoxyribise, phosphoric acid and nitrogen containing bases

29
Q

How do DNA molecules match up?

A

Biology (7 decks)

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