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dna Flashcards

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Biology 101 flashcards
1
Q

which nucleotides are prunes?

A

adenine and guanine

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2
Q

which nucleotides are pyrmdines

A

thymine and cytosine

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3
Q

what makes up the back bone of dna

A

phosphate group and deoxyribose

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4
Q

what bonds hold the sugar phosphate backbone together

A

covalent bond

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5
Q

what determines your code for life?

A

nitrogen bases

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6
Q

what bonds hold the base pairs together

A

hydrogen bonds

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7
Q

what age does replication occur

A

synthesis

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8
Q

what must happen to dan before it replicates

A

unwind and unzip

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9
Q

RNA

A

nucleic acid that stores and transmits hereditary informtaion

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10
Q

what is the sugar in RNA and DNA

A

RNA- ribose DNA-deoxyribose

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11
Q

which is single stranded and double stranded

A

RNA- single DNA- double

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12
Q

what is in place of thymine in RNA

A

uracil

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13
Q

RNA’s primary function is

A

protein synthesis

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14
Q

what is MRNA

A

messenger RNA

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15
Q

job of mRNA

A

carries copies of instructions for assembling amino acids from DNA

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16
Q

location of mRNA

A

nucleus to cytoplasm to ribosome

17
Q

rRNA is

A

ribosomal RNA

18
Q

job of rRNA

A

part of ribosomes

19
Q

location of rRNA

A

ribosome

20
Q

tRNA is

A

transfer RNA

21
Q

job of tRNA

A

transfers each amino acid to ribosome

22
Q

location of tRNA

A

cytoplasm

23
Q

translation def

A

decoding of mRNA message into protein chain

24
Q

translation takes place in

A

cytoplasm

25
Q

transcription def

A

making RNA from DNA

26
Q

codon def

A

3 nucleotides in a row on mRNA that code for a specific amino acid

27
Q

mutations

A

change in a single gene

28
Q

point mutations

A

changes in 1 or a few nucleotides

28
Q

where does replication occur

A

nucleus

29
Q

where does transcription occur

A

nucleus

30
Q

where does translation occur

A

ribosome

31
Q

mRNA to tRNA is

A

translation

bio dna (4 decks)

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