DNA/RNA
What is the shape of DNA?
a. double stranded helix
b. single stranded helix
c. double stranded flex
d. single stranded
a. double stranded helix
What is the shape of RNA?
a. double stranded helix
b. single stranded
c. single stranded helix
b. single stranded
What are the two steps in Protein Synthesis? (In order)
Transcription and Translation
In DNA replication, you start off with one molecule of DNA then end up with how many?
2
What 4 organelles are found in all cells?
ribosome, DNA, cytoplasm, cell membrane
What are DNA nucleotides made of?
a. phosphate, sugar, base
b. adenine, thymine, cytosine, guanine
c. phosphate sugar backbone
d. ribose sugar and nitrogen base
a. phosphate, sugar, base
Which organic molecule does DNA and RNA belong?
a. carbohydrates
b. lipids
c. proteins
d. nucleic acids
d. nucleic acids
What organelles are most important in protein synthesis?
nucleus and ribosomes
An enzyme uncoils and unwinds the DNA by
a. sealing strong hydrogen bonds
b. breaking the nitrogen bonds
c. breaking the weak hydrogen bonds
d. sealing the nitrogen bases
c. breaking the weak hydrogen bonds
Write the equation of cellular respiration.
Glucose + O2 --> CO2 + H2O + ATP
What is the name of the sugar in DNA?
Deoxyribose
What is the name of the sugar in RNA?
Ribose
Which type of RNA is used in transcription?
mRNA
What is the asexual reproduction that bacteria uses to make identical copies of themselves?
a. mitosis
b. meiosis
c. fermentation
d. binary fission
d. binary fission
By lowering the activation energy
What kind of bonds hold DNA together?
hydrogen
Which base is present in RNA that is not present in DNA?
What is the purpose of tRNA?
to transport the correct amino acid to the ribosome
What is the name of the cells that do not have a specific function?
stem cells
As an embryo develops, what process is responsible for cells becoming eye or liver cells?
a. differentiation
b. expression
c. repression
d. transcription
a. differentiation
What is the complementary DNA strand for ATG GGC TCA?
TAC CCG AGT
What is the RNA strand for TGC ACC TGA?
ACG UGG ACU
What is the correct sequence of amino acids produced from a segment of mRNA described by AUG CUA GUG AAA?
Methionine Leucine Valine Lysine
DNA replication is known as semi-conservative because
it has one new strand and one old strand
The process of "activating" a certain gene is known as what?
Gene Expression