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WorksheetsDNA and RNA
Total questions: 17
Worksheet time: 9mins
Genes contain instructions for assembling
operons
chromatin
protein
mutagens
The genetic code in DNA is in the sequence of
nitrogen bases
hydrogen bonds
sugars
phosphate groups
One mRNA molecule carries the message of only one gene.
This statement is True.
This statement is False - change the underlined word to tRNA to make it true.
This statement is False - change the underlined word to rRNA to make it true.
This statement is False - change the underlined word to DNA to make it true.
The amino acids are carried by the rRNA.
This statement is True.
This statement is False - change the underlined word to mRNA.
This statement is False - change the underlined word to tRNA.
This statement is False - change the underlined word to DNA.
What is produced during transcription?
mRNA
DNA
RNA Polymerase
proteins
What happens during translation?
Messenger RNA is made from a DNA code.
The cell uses a messenger RNA code to make proteins.
Transfer RNA is made from a messenger RNA code.
Copies of DNA molecules are made.
The Figure shows the % of bases in a DNA sample. How much Thymine should you expect to find in the sample?
44%
28%
24%
22%
During DNA replication, a DNA strand that has the bases CTAGGT produces a complementary strand with the bases
GAUCCA
AGCTTG
GATCCA
TCGAAC
What is the shape of DNA?
double helix
triple helix
complementary helix
nitrogenous helix
Which scientist made x-ray diffraction photos of DNA?
Franklin
Wilkins
Watson
Crick
Who was credited for discovering the structure of DNA?
Franklin and Wilkins
Hershey and Chase
Franklin and Griffith
Watson and Crick
A, B, and C are the three types of
DNA
RNA
Protein
Enzymes
When during the cell cycle is a cell’s DNA replicated?
S Phase
M Phase
G1 Phase
G2 Phase
What is the central dogma of molecular biology?
DNA to tRNA to mRNA
RNA to DNA to Protein
DNA to RNA to Protein
mRNA to tRNA to rRNA
In eukaryotes, DNA
is circular.
is located in the ribosomes.
floats freely in the cytoplasm.
is located in the nucleus.
Which structure makes proteins using coded instructions that come from the nucleus?
vacuole
ribosome
mitochondria
chloroplast
Which of the following is NOT a function of proteins?
build tissues such as bone and muscle
store and transmit heredity
control the rate of reactions and regulate cell processes
help to fight disease
