Interphase
Explanation: Occurs during the S-phase.
100
What is a virus?
A non-living , infectious particle composed of a nucleic acid and a protein coat that invades a cell and makes copies of itself to reproduce.
Explanation:
A virus is a non-living thing that invades a cell and reproduces itself.
100
Describe a eukaryotic cell.
At least has a nucleus and some other organelles.
100
What is transcription?
DNA acts as a template for mRNA to get the code for making a certain protein.
100
What is a stem cell?
A cell that is not specialized.
Ex. embryonic stem cells
200
Name the four bases found in DNA.
Adenine, Guanine, Cytosine, Thymine
Explanation: Adenine always pairs with Thymine and Guanine always pairs with Cytosine.
200
What types of nucleic acids can viruses contain?
Either DNA or RNA
Explanation:
Most organisms use DNA, but many viruses have RNA as their genetic material.
200
What are 4 things found in all cells?
Ribosomes, DNA, Cell Membrane, Cytoplasm
200
What is a 3 base code sequence on mRNA called?
codon
200
What type of cell receives and transmits signals?
neuron/ nerve cell
300
What is the function of mRNA?
Transport genetic information from the DNA to the Ribosome
Explanation:
Where it then specifies the amino acid sequence of the protein for gene expression.
300
A vaccination is the best way to prevent a __________.
Virus
Explanation:
Vaccinations contain harmless versions of a virus, bacterium, or toxin that causes an immune response when introduced to the body.
300
What to ribosomes produce?
Proteins
300
Transcribe the DNA sequence: ATC CCA GTT
UAG GGU CAA
300
What does the letter "e" look like when viewed under the microscope?
It is upside down and inverted.
400
Which base is not found in RNA?
Thymine
Explanation: In RNA, Uracil replaces Thymine found in DNA.
400
Which type of Bacteria is prokaryotic and resides in the air, water, and in the soil?
Eubacteria
Explanation: It is unicellular. It makes us sick and its' main function is decomposing
400
What is the function of the mitochondria?
Aerobic Respiration
400
What is the role of tRNA?
tRNA brings in the amino acid.
Explanation: The anticodon on the tRNA connects temporarily to the codon on mRNA to release the amino acid.
400
Why are embryonic stem cells preferred over other types of stem cells?
They can become any type of cell in the body.
500
What type of bond holds the complementary bases together?
Hydrogen
Explanation: Hydrogen bonds are weak; therefore, easily broken for DNA to unzip.
500
What are antibiotics used for?
To treat bacterial infections.
Explanation: Antibiotics kill all good and bad bacteria, unless the bacteria is resistant.
500
Name one component of cell theory.
Cells are the basic unit of structure & function.
All cells come from pre-existing cells.
All living things are made from cells.