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DNA Flashcards

(27 cards)

1
Q

What is the double helix made of

A

two strands of nucleotides twisted in a helical shape

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2
Q

what is the extra ring of DNA found in bacteria

A

Plasmid

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3
Q

What is DNA made of

A

Subunits called nucleotides

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4
Q

A always bonds with…

A

T

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5
Q

what is the bond between sugars, phosphate, and bases

A

covalent bond

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6
Q

what is a twisted,spiraling shape

A

helix

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7
Q

In each nucleus there are __ thread like peices of DNA

A

46 thread like pieces of DNA

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8
Q

what are the 2 groups of nitrogen bases

A

Purine and Pyrimidine

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9
Q

The nitrogen bases that make up the steps of the DNA ladder are held together with ____ bonds, which are very ___

A

The nitrogen bases that make up the steps of the DNA ladder are held together with HYDROGEN bonds, which are very WEAK

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10
Q

what does DNA stand for

A

DeoxyriboNucleic Acid

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11
Q

What does the Pyrimidine base consist of

A

Thymine and Cytosine

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12
Q

the total 46 pieces is called a ____

A

genome

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13
Q

What are the thread like pieces of DNA called when coiled

A

Chromosomes

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14
Q

DNA is found in all living things in Eukaryotes its found in_____ Prokaryotes is found in the _______

A

Eukaryotes- DNA is in the nucleus Prokaryotes- Cytoplasm, a plasmid in an extra ring of DNA used 4 bioteachnology

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15
Q

What is always paired with thymine

A

adenine

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16
Q

What are the instructions for making proteins

17
Q

What is DNA that has thickened and coiled

18
Q

What time of macromolecule is DNA classified as?

19
Q

What is a threadlike piece of DNA

20
Q

What is made of 3 parts

21
Q

C always bonds with…

22
Q

What does the Purine nitrogen base consist of

A

Adenine and Guanine

23
Q

Whats a bond between nitrogen bases

24
Q

What do the nitrogen bases make

A

the rungs(steps) of the DNA ladder

25
What is DNA called when the thread like pieces are relaxed
Chromatin
26
What is a nucleotide made of
1 sugar molecule-deoxyribose 1 phosphate molecule 1 Nitrogen base
27
what is always paired with cytosine
Guanine