Gene Expression Flashcards

1
Q

What characteristics of life do cells show?

A

Complexity and organization, harnessing material and energy from the environment, responding to signals in the environment, ability to reproduce, use DNA to store and transmit data

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2
Q

Transformation is defined as …

A

The transfer of biological characteristics form one cell to another

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3
Q

Define virulent:

A

The ability to infect and harm an organism

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4
Q

RNase destroys …

A

RNA

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5
Q

Protease destroys …

A

Proteins

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6
Q

DNase destroys

A

DNA

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7
Q

Genotype is the …

A

Genetic information

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8
Q

Phenotype is the …

A

Observable traits

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9
Q

The four types of nucleotides in DNA are …

A

A, C, T, and G

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10
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Template for _________ _________ transcription

A

DNA, nucleic acid (DNA)

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11
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Product of _________ _________ transcription

A

RNA, nucleic acid (RNA)

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12
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Enzyme that carries _________ _________ out transcription

A

RNA, polymerase Protein

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13
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Sequence that
indicates where
transcription starts
_________ _________

A

Promoter, nucleic acid (DNA)

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14
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Sequence that
indicates where
transcription ends
_________ _________

A

Terminator, Nucleic acid (DNA)

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15
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
DNA-binding
molecules that help
control when
transcription of a
gene will occur
_________ _________

A

Transcription factor, protein

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16
Q

In transcription, information in ________ is used to make ________. Transcription is carried out by _________.

A

DNA, RNA, RNA polymerases

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17
Q

In translation, information in ________ is used to make a ________. Translation is carried out by the ________.

A

RNA, Protein, Ribosome

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18
Q

The sequences in the genetic code table correspond to ________ in the mRNA.

A

Amino acids

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19
Q

Start codon: ________

A

AUG

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20
Q

Stop codons: ________

A

UAA,UAG,UGA

21
Q

What kind of covalent bond links amino acids together in a polypeptide sequence?

A

Peptide

22
Q

What class of macromolecule is a tRNA?

A

Nucleic acid

23
Q

In the ribosome, tRNA molecules interact with ________ (type of molecule) using ________.

A

Amino acids, hydrogen bonds

24
Q

Aminoacyl tRNA synthetases:

A

Help attach amino acids to uncharged tRNAs

25
Q

Only a ________ tRNA can be used in translation.

A

uncharged

26
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Contains codons
to be translated
_________ _________

A

mRNA, Nucleic acid (RNA)

27
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Contains an
anticodon and
carries the amino
acid to the ribosome

_________ _________

A

tRNA, Nucleic acid (RNA)

28
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)

_________ _________

A

Ribosome, nucleic acid (RNA) + protein

29
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
Attaches the correct
amino acid to
the tRNA
_________ _________

A

Aminoacyl tRNA synthetase, protein

30
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
When a stop codon
is reached, causes
the polypeptide
to release from
the tRNA to end
translation
_________ _________

A

Release factor, protein

31
Q

Name of Macromolecular class of Function in
molecule molecule(protein, lipid, transcription
carbohydrate, nucleic acid)
The product of
translation
_________ _________

A

Polypeptide, protein

32
Q

The sequence of amino acid is determined by …

A

DNA

33
Q

Amino acids are joined by …

A

peptide bonds

34
Q

In the ribosome, tRNA molecule interact with ___________ (type of molecule) using ___________ (type of intermolecular force).

A

mRNA codons, hydrogen bonding interactions

35
Q

If a tRNA molecule has the sequence 3’-GUU-5’, the mRNA codon this tRNA could bind to is __________ and the amino acid the tRNA would carry is _________ because …

A

5’-CAA-3’, Gin, in the genetic code table, 5’-CAA-3’ corresponds to Gin

36
Q

In protein folding the primary structure is the sequence of …

A

Amino acids

37
Q

The secondary structure results from interactions of nearby …

A

Amino acids

38
Q

In protein folding secondary structures form when __________ occur between atoms that are part of the __________ in different regions of protein (not R groups).

A

Hydrogen bonds, polypeptide backbone

39
Q

Interaction between R groups in a polypeptide lead to the _________ in protein.

A

Tertiary structure

40
Q

_________:
- Can contain multiple secondary structures
- Functional form of the protein

A

Tertiary structure

41
Q

_________ determine the shape of the 3D protein.

A

Intramolecular

42
Q

DNA is the material within the …

A

Chromosome

43
Q

Chromosome:

A

Structures of genetic material

44
Q

Centromere:

A

A structure that is typically found near the middle of the chromosome and plays a key role in cell division.

45
Q

Gene:

A

Specific DNA sequences in chromosomes

46
Q

Template strand:

A

The DNA sequence that can duplicate itself during mRNA synthesis

47
Q

Codon:

A

A sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule.

48
Q

Location of transcription in each cell type:
1. Eukaryotes:
2. Prokaryotes (bacteria):

A

Nucleus, cytosol