IB Biology HL Dna

Quiz
•
Biology
•
11th - 12th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What contribution did the X-ray diffraction conducted by Rosalind Franklin make to our understanding of DNA?
It identified DNA as the genetic material.
It indicated the helical shape of the molecule.
It showed that the DNA of eukaryotes was associated with histone proteins.
It showed that replication was a semi-conservative process.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The image shows a polysome in a bacterial cell. How many genes have been transcribed?
1
2
3
4
Tags
NGSS.HS-LS1-1
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hershey and Chase used a bacteriophage (a virus that infects bacteria) to investigate the chemical nature of genes.
The sulphur in the protein and the phosphorus in the DNA of the bacteriophage were radioactively labelled. The data obtained after bacterial infection and centrifugation are shown in the table.
What did Hershey and Chase conclude from their experiment?
DNA was mainly outside the bacterial cells.
Viruses infect bacterial cells with proteins.
Viral DNA was found within the bacterial cells.
Neither protein nor DNA were chemicals making up genes in viruses.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Current understanding of DNA is an example of the accumulated discoveries of many scientists. Which scientists are credited with establishing that DNA is the genetic material?
Franklin and Wilkins
Watson and Crick
Meselson and Stahl
Hershey and Chase
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are polysomes?
Strings of amino acids
Packages of eight histones with DNA
Many ribosomes joined to one mRNA
Complexes of tRNA with amino acids
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What are the functions of DNA primase and DNA polymerase I in DNA replication?
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A nucleotide containing dideoxyribose is shown.
Nucleotides cannot form 5′ to 3′ linkages with dideoxyribonucleotides.
Nucleotides cannot form base pairs with dideoxyribonucleotides.
Dideoxyribonucleotides cannot form hydrogen bonds with deoxyribose.
Dideoxyribonucleotides do not have all four nitrogenous bases.
Tags
NGSS.HS-LS1-1
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