Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology allsaints 2019 > Dna And Rna > Flashcards

Dna And Rna Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

What are dna nucleotides?

A

Basic units that dna is made of

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

What are dna nucleotides made of?

A

Nitrogenous base, deoxyribose pentose sugar, and a phosphate

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

What are the bases that dna is made of?

A

Adenine, guanine, thymine, cytosine

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

What reaction do nucleotides join by?

A

Condensation reaction

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

What bond to nucleotides Join by?

A

Phopshodiester bond

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

What are 2 nucleotides called?

A

Dinucleotide

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

What are many nucleotides called?

A

Polynucleotide

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

Dna is antiparallel what does this mean?

A

One strand runs 5-3 and one runs 3-5

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

Are base pairings specific?

A

Yes

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

What vase pairs with adenine?

A

Thymine with 2 hydrogen bonds

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

What bade pairs with guanine?

A

Cytosine with 3 hydrogen bonds

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

How does sugar phosphate backbone help dna structure?

A

Gives strength

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

How does coiling Of dna help it’s structure?

A

Gives compact shape

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

How does dna being long help the structure?

A

Allows storage of large amounts of information

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

What does complementary base pairing allow to happen?

A

Allows information to be replicated rapidly

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

How does double helix help the structure of dna?

A

Makes molecule stable

17
Q

How do hydrogen bonds help dna structure?

A

Bases are held together by hydrogen bonds and many hydrogen bonds provide strength

18
Q

Why is it an advantage that hydrogen bonds break easily?

A

Allows chains to split for replication

19
Q

What is triplet code?

A

Each amino acid is coded for 3 bases. Some amino acids have more than one code but the code doesn’t overlap.

20
Q

What are non coding sections of dna called?

A

Introns

21
Q

How can mutations make non functional proteins?

A
  • Change in dna base
  • amino acid sequence is changed
  • change in h bonds
  • tertiary structure is altered
22
Q

What can mutations mean for substrate complexes?

A

No enzyme substrate complexes formed

23
Q

What does semi conservative replication mean?

A

Dna strands separate and hydrogen bonds break. New molecules have one old strand and one new strand

24
Q

What are the stages of dna replication?

A
  • Chains separate and hydrogen bonds are broken
  • dna helicase breaks the bonds
  • nucleotides line up and complementary bases join to template strand
  • dna polymerase joins adjacent nucleotides
25
Q

What are rna nucleotides made of?

A

Nitrogenous base, ribose pentose sugar, and a phosphate

26
Q

What are the bases in rna?

A

Adenine, uracil, cytosine, guanine

27
Q

What is rna?

A

Relatively short polynucleotide chain.

28
Q

How is rna adapted to carry out its function?

A

Stable and single stranded to allow bonding at the ribosome

Biology allsaints 2019 (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions