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Dna Flashcards

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Biology 101 flashcards
1
Q

What is DNA made up of?

A

Nucleotide

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2
Q

What shape in DNA in?

A

Double helix

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3
Q

What is the backbone made out of?

A

Phosphate sugar group

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4
Q

What sugar is used in DNA?

A

Deoxyribose

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5
Q

What sugar is used in RNA?

A

Ribose

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6
Q

What is a nitrogenous base? Give 4-5 examples

A

A-adenine, thymine, g-guanine, c-cytosine, u-uricail

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7
Q

What are the DNA nitrogenous base pairings?

A

A=t, c = G

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8
Q

If DNA was stretched out how long would it be?

A

Over 1.5m

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9
Q

How are the nitrogenous bases bonded?

A

Hydrogen bonds

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10
Q

Which bases have what hydrogen bonds?

A

A&T =2 hydrogen bonds

C&G =3 hydrogen bonds

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11
Q

Total #of codons?

A

64

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12
Q

What is a codon?

A

A set of 3 nitrogenous bases which give instructions to RNA to code proteins

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13
Q

What does DNA determine?

A

What amino acids are strung together

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14
Q

What is a gene?

A

A segment of DNA that controls gene expression of specific codons to code for certain traits / protein

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15
Q

What are the nitrogenous bases of RNA?

A

A-adinine, u- uracil, c-cytosine, G- guanine

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16
Q

What does DNA stand for?

A

Deoxyribonucleic acid

17
Q

What does RNA stand for?

A

Ribonucleis acid

18
Q

Where is DNA located?

A

Within the nucleus

19
Q

What is DNA made of?

A

Nucleic acid

20
Q

What organelles can be found in?

A

Mitrochrondria and chloroplast

21
Q

Why do we have mRNA?

A

Since DNA is too large to fit through nucleus pores

22
Q

Why is DNA often referred to as a blueprint?

A

DNA tells the cell how to build

23
Q

What are the parts of “useless” DNA called

A

Introns

24
Q

What are the parts of codable DNA called?

A

Exon

25
Q

What is a his tone?

A

DNA wraps around histones which are proteins

26
Q

What are nucleosomes?

A

A subunit of a chromatin, a segment of DNA wraps around the histone

27
Q

Purines (definition)

A

2 ringed

28
Q

Pyrimidines(definition)

A

3 ringed

29
Q

Which are purines?

A

Gand A

30
Q

Which are prymidines?

A

C+t

31
Q

What are the components of DNA? (Nucleotide)

A

phosphate group, deoxyribose sugar, nitrogenous use

32
Q

What are the components of RNA

A

Phosphate group, ribose sugar, nitrogenous bases

Dna (7 decks)

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