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World studies test! (Enlightenment, Countinets, oceans, 5 themes of geography) > Bio unit 6 test > Flashcards

Bio unit 6 test Flashcards

1
Q

What are the 3 jobs of the DNA

A

Strong information
copying information
gene expression

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2
Q

What type of polymer is DNA

A

Nucleic Acid

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3
Q

What is the monomer of DNA

A

Nucleotide

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4
Q

What is the sugar in DNA

A

Deoxyribose

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5
Q

WHat are the 3 components of DNA

A

Sugar
phosphate group
nitrogenous base

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6
Q

what is the shape of the DNA

A

Double helix

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7
Q

What is base pairing

A

A bonds to T
G bonds to C

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8
Q

If a DNA strand is 16% adenine, what are the percentages of thymine, cytosine, and guanine

A

A=T so 16% thymine
100%-16% T= 68%
68% /2 = 34% c and 34% G

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9
Q

During which phase does DNA replication take place

A

S phase

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10
Q

which enzyme separates the DNA strand

A

Helicase

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11
Q

Which enzyme joins the nucleotide to the complementary strand?

A

DNA polymerase

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12
Q

what enzyme proodeads the strands of DNA to ensure that the correct bases are paired up

A

DNA polymerase

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13
Q

what is the sugar in RNA

A

Ribose

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14
Q

how many strands is RNA

A

single stranded

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15
Q

what nitrogenous base is in RNA but not in DNA

A

Uracil

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16
Q

Describe MRNA

A

Genetic measure that goes from nucleus to ribosome

17
Q

Describe TRNA

A

RNA that brings in amino acids and contacts anticodons

18
Q

Describe RRNA

A

RNA that makes up ribosome

19
Q

Which RNA has codons? Which has anticodons

A

MRNA has codons. TRNA has anticodons

20
Q

What is transcription? Where does transcription take place?

A

TRanscription is the process of taking a complementary MRNA stand which happens in the nucleus

21
Q

What is the job of RNA polymerase

A

enzyme that is used during transcription to make RNA strands

22
Q

what is the start of codon

23
Q

what amino acid is the start codon

A

Methionine

24
Q

What are the 3 stop codons

A

UAA, UAG, UGA

25
Q

what is translation? where does translation occur?

A

Process of using MRNA strand to assemble proteins which occurs at the ribosome

26
Q

What is the central dogma of biology?

A

DNA-RNA-Protein

27
Q

Describe what a point mutation is

A

Point mutations are when a single base is changed

28
Q

Describe what a frame shift mutation is

A

Frameshift mutations are when a base is added or deleted, shifting the entire sequence

29
Q

Which type of mutation would be more dangerous

A

Frame shift mutations can alter a protein so much that it cannot preform its usual function

30
Q

name 3 mutagens

A

UV rays, smoking/tobacco, chemical like arsenic

World studies test! (Enlightenment, Countinets, oceans, 5 themes of geography) (19 decks)

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