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WorksheetsProtein Synthesis Test
Total questions: 10
Worksheet time: 5mins
Which of these is the correct complementary strand for the segment of DNA shown?
3' AGGTCAGGT 5'
5' AGGTCAGGT 3'
5' ACCUGAGGU 3'
5' TGGACTGGA 3'
5' TCCAGTCCA 3'
Nitrogenous bases are located on both strands of the DNA helix. What is the significance of the nitrogenous bases?
The number of adenines and cytosines determines the type of RNA that will be produced.
The order of nitrogenous bases determined the order of amino acids in the proteins synthesized.
The amount of thymine and guanine in the DNA molecules determines the length of the genes.
The type of hydrogen bonding between the nitrogenous bases determines which amino acid will be added to the peptide chain.
The sequence of nitrogenous bases varies widely. The sequence of the bases in DNA is most important for which of the following?
Providing the instructions for the traits of an organism.
Preventing mutations from occurring during DNA replication
Allowing the DNA to have the shape necessary for replication.
Helping form the sugar-phosphate backbone of DNA molecules
The arrow in the image indicates -
the bond between adjacent phosphate and deoxyribose molecules.
the junction of introns and exons in the sense strand of DNA
the hydrogen bond between complementary nucleotides
the junction of a codon and a DNA triplet
Researchers combined sequences of fruit-fly DNA from a gene for a particular trait with frog DNA. The mixture was heated to separate the DNA strands. Cooling allowed the single strands to form pairs. The researchers observed that some of the fruit-fly DNA paired with the frog DNA. The results provide evidence that -
similar nucleotides are present in both fruit-fly and frog DNA
fruit flies and frogs can be made to develop some of the same physical traits
heat can cause mutations in the DNA sequences of organisms
the replication of genetic material can occur at any time
In the early 1980's scientists were able to produce two biomolecules by splicing a human gene into the bacterium E. coli to make recombinant human insulin and growth hormone. Which statement best explains why this experiment was successful?
Human cells are eukaryotic, and the E. Coli cells are prokaryotic
All living organisms share the same genome
The genes for all organisms are composed of the same building blocks
The human body contains many types of bacteria, including E. coli
Students are modeling mRNA during the process of protein synthesis. Which answer choice correctly describes the model of the mRNA strand being transcribed?
The mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine
The mRNA strand is complementary to the DNA template strand; however, uracil instead of thymine is paired with adenine.
The mRNA strand is an exact copy to the DNA template strand; however, uracil instead of thymine is paired with adenine.
The mRNA strand is an exact copy to the DNA template strand; however, uracil instead of adenine is paired with thymine.
Use the DNA template strand below to find the correct amino acid sequence that would be produced.
3' TCC AAT GGC TTA TTT GCA 5'
Argine - Leucine - Proline - Asparagine - Lysine - Argine
Tryptophan - Phenylalanine - Leucine - Glycine - Asparagine - Phenylalanine
Serine - Leucine - Proline - Asparagine - Lysine - Arginine
Tryptophan - Phenylalanine - Leucine - Glycine - Asparagine - Serine
Human bone, muscle, and nerve cells all contain the same number of chromosomes with the same complement of genes. What enables these cells to perform specialized activities
The ability of some cells to remove unnecessary DNA sequences
The regulation of gene expression within each cell type
The mutation of genes within each cell type
The use of different methods of cell division
How is the information for a specific protein carried on the DNA molecule?
As a sequence of nucleotides
In the double-helix shape of the condensed chromosome
In the ratio of adenines to thymines
As a pattern of phosphates and sugars
