NEW
Font size
WorksheetsDNA and Mutations
Total questions: 10
Worksheet time: 6mins
Base your answer to the following question on the structures represented in the diagram below. What is the relationship between these three structures?
DNA is made up of proteins that are synthesized in the cell.
Protein is composed of DNA that is stored in the cell.
DNA controls the production of protein in the cell.
The cell is composed only of DNA and protein.
The individuality of an organism is determined by the:
sequence of nitrogenous bases in deoxyribonucleic acid
position of the ribosomes on the endoplasmic reticulum
number of amino acids in a cell
number of nitrogenous bases in a codon
If 20% of a DNA sample is made up of thymine, T, what percentage of the sample is made up of cytosine, C?
15%
30%
35%
50%
A medical test indicates that a patient has a defective protein. This condition is most likely due to a change in the directions coded in the:
number of hydrogen atoms in starch molecules
sequence of inorganic molecules
number of carbon atoms in sugar molecules
sequence of subunits in DNA
Genes for medically important proteins can be cloned and inserted into bacteria, as shown in the diagram below.
Why can bacteria recognize a human gene and then produce a human protein?
DNA replication in bacteria and humans is the same.
Bacterial cells contain the same organelles as human cells.
The basic components of DNA are the same in humans and bacteria.
Bacterial cells and human cells contain the same kind of chromosomes.
A diagram of a cellular process is shown below.
Which of the following identifies the process shown at point Z?
Translation
Translocation
Replication
Transcription
Translation results in the formation of
proteins
rRNA
mRNA
tRNA
Which segments of DNA are transcribed and translated into proteins?
the entire DNA molecule
sugar - phosphate backbone
phenotypes
nitrogenous bases
a codon is...
a set of three DNA nucleotides on mRNA that codes for one protein
a set of three DNA nucleotides on mRNA that codes for one amino acid
a set of three RNA nucleotides on mRNA that codes for one protein
a set of three RNA nucleotides on mRNA that codes for one amino acid
Which of the following would most likely cause a mutation?
the placement of ribosomes on the endoplasmic reticulum
the insertion of a nucleotide into DNA
the movement of transfer RNA out of the nucleus
the release of messenger RNA from DNA
