WorksheetsCHS- Protein Synthesis
Total questions: 10
Worksheet time: 30mins
In a DNA molecule, which molecules make up the sides of the double helix?
Single nucleotide
pair of nucleotides
joined sugars and phosphates
joined nitrogenous bases and phosphates
What distinguishes RNA from DNA?
DNA contains uracil, and RNA does not
DNA contains nitrogenous bases, and RNA does not
RNA contains the sugar ribose, and DNA does not
RNA is arranged in a double helix, and DNA is not
1. Transcription creates an mRNA molecule using DNA as a template. Where does this process occur in the cells of eukaryotes?
in the nucleus
in the cytoplasm
in the ribosomes
in the Golgi Apparatus
There are four molecules that make up DNA, which is one type of nucleic acid.
What evidence supports the argument that nucleic acids can store genetic information?
Nucleotides are arranged in a sequence that can be thought of as a code
Genetic information can be stored in the bonds between the sugars and phosphate groups
Each nucleotide alone stores information about a single cellular process
The bonds between nitrogen bases and sugars are broken and re-formed as information is transmitted
Which of the following is an example of a mutation?
A red blood cell loses its nucleus
A zygote receives two X chromosomes
A strand of mRNA is produced from DNA
A nucleotide is missing in a replicated DNA strand
Streptococcus is a type of bacteria that causes strep throat in humans. Which of these is the type of reproduction caused by Streptococcus?
Binary Fission
Meiosis
Budding
Crossing Over
The nucleotide of DNA is one large molecule composed of three smaller molecules. Which of the following sets of molecules bond together to form a nucleotide?
A purine, a pyrimidine, and a five carbon sugar
Adenine, thymine, and cytosine
A nitrogen atom, a phosphate atom, and a five carbon sugar
Deoxyribose, a nitrogen base, a phosphate group
If a given sample of DNA contains 20% Adenine, how much Cytosine does it contain?
10%
20%
30%
60%
Which statement best describes the purpose of the process of DNA replication?
Making a new DNA molecule that has different bases
Producing two exact copies of the cell’s original DNA
Doubling the amount of DNA to increase the number of chromosomes
Using enzymes to break hydrogen bonds and add nucleotides to strands
Proteins are formed in the cytoplasm of cells using genetic instructions from DNA, which is located in the cell nucleus. Which of the following BEST explains how the genetic information gets to the site of protein synthesis?
DNA is divided during mitosis and one strand travels outside the nucleus to bind with RNA and form a protein
DNA is copied to make mRNA. The mRNA leaves the nucleus and goes to the ribosomes, where the information is used to guide protein synthesis.
Genetic information travels from DNA in the nucleus along a strand of mRNA that is connected to ribosomes in the cytoplasm where proteins are made.
The genetic code is transferred to ribosomes on tRNA molecules, which can pass through the nuclear membrane.
