Curriculum
Course: Edexcel A Level Biology A (SNAB) 9BI0
time left:
:
:
Login

Curriculum

Edexcel A Level Biology A (SNAB) 9BI0

Topic 1 · Lifestyle, Health and Risk

0/50

Topic 2 · Genes and Health

0/76

Topic 3 · Voice of the Genome

0/55

Topic 4 · Biodiversity and Natural Resources

0/51

Topic 5 · On the Wild Side

0/72

Topic 6 · Immunity, Infection and Forensics

0/41

Topic 7 · Run for your Life

0/55

Topic 8 · Grey Matter

0/51
Quiz

SNAB Nucleic Acids – Check yourself

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit

SNAB Nucleic Acids IAL Modular Biology check yourself quiz: free practice for IAL Edexcel Modular. Work through this SNAB Nucleic Acids IAL Modular Biology check yourself quiz and get instant feedback on every answer. If you get stuck, review the 1.5 SNAB Nucleic Acids — Notes — IAL Biology Notes lesson. More practice: IAL Edexcel Modular — all units. Syllabus: Pearson Edexcel International A Levels.

  • Questions count: 15
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
Which base is found in RNA but not DNA?
Thymine
Uracil
Adenine
Guanine
2.
Phosphodiester bonds form by:
Hydrolysis
Hydrogen bonding
Condensation
Ionic attraction
3.
How many hydrogen bonds join C and G?
3
2
1
4
4.
Which is a purine?
Cytosine
Thymine
Uracil
Guanine
5.
DNA has 30% cytosine. Thymine is:
30%
40%
20%
70%
6.
The sugar in DNA is:
Deoxyribose
Ribose
Glucose
Ribulose
7.
Which statement best describes Ribose?
The pentose sugar in DNA, lacking an oxygen at carbon 2.
The pentose sugar found in RNA and ATP.
The twisted ladder shape of DNA formed by two polynucleotide strands.
A double-ringed base: adenine or guanine.
8.
Which statement best describes Purine?
The monomer of nucleic acids, made of a pentose sugar, a phosphate group and a nitrogenous base.
The pentose sugar in DNA, lacking an oxygen at carbon 2.
A double-ringed base: adenine or guanine.
A single nucleotide unit, such as AMP, not joined into a polymer.
9.
Which statement best describes Deoxyribose?
Specific hydrogen bonding of A with T (or U) and C with G.
The pentose sugar in DNA, lacking an oxygen at carbon 2.
The pentose sugar found in RNA and ATP.
The monomer of nucleic acids, made of a pentose sugar, a phosphate group and a nitrogenous base.
10.
Which statement best describes Mononucleotide?
A single nucleotide unit, such as AMP, not joined into a polymer.
The twisted ladder shape of DNA formed by two polynucleotide strands.
The pentose sugar in DNA, lacking an oxygen at carbon 2.
Specific hydrogen bonding of A with T (or U) and C with G.
11.
Which of the following is the correct sequence of events that must occur for translation to begin?
Which of the following is the correct sequence of events that must occur for translation to begin?
tRNA binds the small subunit, then the large subunit attaches, then mRNA binds and translation begins.
mRNA attaches to the small ribosomal subunit with its first codon in place, attracting a tRNA; the large subunit then binds and translation begins.
mRNA attaches to the large subunit with its first codon in place, attracting a tRNA; the small subunit then binds.
tRNA binds the large subunit, then the small subunit attaches, then mRNA binds.
tRNA attaches to the large subunit and attracts the mRNA; the small subunit then binds.
12.
After one generation in 14N, Meselson-Stahl DNA was:
All heavy
All light
All intermediate
Half heavy, half light
13.
Which mutation is most likely to cause a frameshift?
Substitution
Single-base deletion
Silent mutation
Deletion of three bases
14.
Which statement best describes DNA polymerase?
An alternative form of a gene at the same locus.
Having two identical alleles of a gene.
Enzyme that joins nucleotides to form a new strand complementary to the template.
Enzyme that unwinds DNA by breaking hydrogen bonds between bases.
15.
Which statement best describes Mutation?
DNA replication in which each new molecule has one original and one new strand.
Having two identical alleles of a gene.
The alleles an organism has for a characteristic.
A change in the base sequence of DNA.
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
Part of Topic 2 · Genes and Health — see every lesson and quiz in this unit.
Accepted payment methods