Biology: DNA Scientists

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Which scientist conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA?

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Biology

9th

31 Terms

1

Which scientist conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA?

Oswald Avery

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2

Who was responsible for the experiment depicted by the image/data table?

Frederick Griffith

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3

If Chargaff found that a sample of DNA has 30% THYMINE, how much GUANINE would he have calculated to be there?

20%

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4

Who was responsible for the experiment depicted by the image?

Rosalind Franklin

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5

What did Erwin Chargaff conclude from his experiments?

A and T, C and G always occur in equal amounts

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6

Rosalind Franklin's "Photo 51" allowed Watson and Crick to determine the ___ of DNA.

Shape

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7

From his work with mice and pneumonia-causing bacteria, Frederick Griffin coined the term

Transformation

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8

The work of scientists including Griffin, Avery, Hershey & Chase and Franklin helped us to determine the __ are responsible for carrying genetic material.

Nucleic Acids

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9

By using radioactive isotopes, Hershey and Chase were able to conclude that __ is/are the carrier(s) of genetic information.

DNA

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10

Scientist Griffith mixed dead, virulent, pneumonia-causing bacteria with living, harm-less bacteria. The harmless bacteria than infected mice with pneumonia. This experiment showed the process of....

transformation

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11

Who was responsible for the model shown?

Watson and Crick

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12

The work of Erwin Chargaff allowed Watson and Crick to determine the rules of...

nitrogen base pairing

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13

If Chargaff found that a sample of DNA has 20% ADENINE, how much GUANINE would he have determined to be there?

30%

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14

What was Watson and Crick's main scientific accomplishment?

Building the first accurate 3D model of DNA

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15

transcription

the process where the DNA sequence in a gene is copied into mRNA

<p>the process where the DNA sequence in a gene is copied into mRNA</p>
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16

translation

the process where genetic information coded in mRNA directs the formation of a specific protein at a ribosome

<p>the process where genetic information coded in mRNA directs the formation of a specific protein at a ribosome</p>
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17

mRNA

type of RNA that carries instructions from DNA in the nucleus to the ribosome

<p>type of RNA that carries instructions from DNA in the nucleus to the ribosome</p>
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18

tRNA

type of RNA that carries amino acids to the ribosome

<p>type of RNA that carries amino acids to the ribosome</p>
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19

codon

sequence of three bases on a strand of mRNA that provides genetic code information for a particular amino acid

<p>sequence of three bases on a strand of mRNA that provides genetic code information for a particular amino acid</p>
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20

complementary base pairing

In DNA, T pairs with A; G pairs with C; RNA, U pairs with A and G pairs with C

<p>In DNA, T pairs with A; G pairs with C; RNA, U pairs with A and G pairs with C</p>
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21

ribosome

Organelles at which proteins are synthesized. Made of rRNA

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22

nucleus

A part of the cell containing DNA. DNA can not leave.

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23

amino acid

Building block of protein. There are 20 types.

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24

adenine

pairs with uracil in RNA, thymine in DNA

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25

cytosine

pairs with guanine

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26

nitrogenous bases

adenine, guanine, cytosine, thymine, uracail

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27

deoxyribose

sugar in DNA

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28

ribose

sugar in RNA

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29

nucleotide

consists of a phosphate group, sugar, and nitrogen base

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30

DNA

A double-stranded, helical nucleic acid molecule capable of replicating and determining the inherited structure of a cell's proteins.

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31

RNA

A nucleic acid that carries information from DNA to ribosomes

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