DNA Flashcards

(68 cards)

1
Q

Transcription is

A

DNA to RNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Translation is

A

RNA to protein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Codon is

A

A series of 3 bases and is coding for an amino acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Each codon is

A

1 amino acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

DNA sugar is

A

Sugar (deoxyribose)- phosphate backbone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the DNA nitrogenous bases?

A

A T C G

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What kind of strand is DNA?

A

Double stranded helix

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

DNA complementary strands are

A

Antiparallel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Is DNA supercoiled?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What kind of sugar does RNA have?

A

Sugar (ribose)- phosphate backbone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What nitrogenous bases does RNA have?

A

A U G C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Is RNA double stranded?

A

No. Single stranded

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Is RNA transient in the cell?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the RNA subtypes?

A

mRNA rRNA tRNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does mRNA stand for?

A

Messenger RNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does rRNA stand for?

A

Ribosomal RNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What does tRNA stand for?

A

Transfer RNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the definition of tRNA?

A

Transferring amino acids in the protein making.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the binary fission of replication?

A

The mother copying DNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What does replication need to start?

A

Origin of replication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Is replication bidirectional?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What process is semiconservative?

A

Replication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the definition of semiconservative?

A

The DNA you get out of the replication process has one new strand but conserved one strand.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Does replication need an RNA primer?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What does DNA polymerase do?
Lays down the complimentary translations, proofreads the strand, and gets rid of RNA primers
26
What growth does replication go by?
5 prime to 3 prime
27
How many RNA primers does the leading strand need in replication?
One
28
Which strand of replication can replicate continuously?
The leading strand
29
Which strand of replication does not replicate continuously?
The lagging strand
30
How many RNA primers does the lagging strand need?
Many
31
What is gyrase?
The untwisting of the DNA
32
What is helicase?
Unwinding the helix
33
What is polymerase?
Lays down the basis; DNA builder
34
What is ligase?
Ligating the hole/gap
35
Is transcription is bidirectional?
No. Unidirectional
36
Can both DNA strands be a template for RNA?
Yes
37
Describe transcription
RNA polymerase recognizes DNA promoter sequence, melts a short piece of DNA and adds nucleotides.
38
What growth does transcription use?
5 prime to 3 prime
39
Where does transcription end?
DNA terminator sequence
40
Where does transcription start?
Promoter sequence
41
mRNA have 3 letter codons that code for
Amino acid, start and stop
42
What is Degeneracy?
61 codons for 20 amino acids
43
What's is the anticodons job on tRNA in translation?
Meet the codon that's complimentary to it.
44
What does translation need?
mRNA, ribosome(70S), tRNAs with amino acids
45
What does the acceptor do for translation?
Accept tRNA with amino acids
46
What does the pepidyl do for translation?
Linking amino acids with peptide bonds
47
What does the exit do for translation?
A way for it to exit
48
What is the effect of point mutations?
It may or may not change the protein in some way
49
What is the definition of point mutations?
Mutation of one base
50
In translation, what cell has an mRNA that's can be polycistronic?
Prokaryotes
51
In translation, what cell has an mRNA that's can be monocistronic?
Eukaryotes
52
What is the definition of polycistronic?
Where one mRNA can contain information about more than one gene
53
What is the definition of monocistronic?
Where one mRNA contains information about one gene
54
What ribosome do prokaryotes have in translation?
70S (30S+50S)
55
How many ribosomes can prokaryotes have in translation?
One or more
56
Replication is
DNA to DNA
57
What ribosome do eukaryotes have in translation?
80S (40S+60S)
58
Do all genes for cell functioning need to be turned on at all times?
No because that would be a waste of cellular energy.
59
What is an operon?
Genes controlled by an operator
60
Is an operon pre or post transcriptional control?
Pre transcriptional control
61
What is a lac operon?
An inductive operon that makes enzymes to break lactose down when lactose is present
62
What is a trp operon?
A repressive operon that makes enzymes to synthesize trytophan
63
What is epigenetics?
Binding of epigenetic factors to DNA or RNA to activate or repress genes
64
Is RNA interference pre or post transcriptional control?
Post transcriptional control
65
What is miRNA?
MicroRNA
66
What does microRNA do?
Regulates cell activities
67
What is siRNA?
Short interfering RNA
68
What does siRNA do?
Viral and cellular control