IB Biology HL Dna

IB Biology HL Dna

11th - 12th Grade

13 Qs

quiz-placeholder

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IB Biology HL Dna

IB Biology HL Dna

Assessment

Quiz

Biology

11th - 12th Grade

Hard

NGSS
HS-LS1-1

Standards-aligned

Created by

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

Media Image

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

Media Image

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

Media Image

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

Media Image

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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