WorksheetsDNA Structure
Total questions: 14
Worksheet time: 8mins
Which of the following units are repeatedly joined together to form a strand of DNA?
Amino Acids
Nucleotides
Fatty acids
Polysaccharides
What are the 4 nitrogen bases?
adenine, thymine, cytoplasm, and guanine
adenine, thymine cytosine, and guanine
adenine, thymine, cytosine, and gylcerol
adenine, thymine, cytosine, and glucose
What are the three components of a nucleotide?
sugar, hydrogen, nitrogen base
sugar, oxygen, nitrogen base
sugar, phosphate, nitrogen base
sugar, phosphate, protein
If a DNA molecule is 18% Guanine which of the following is correct
18% cytosine, 32% adenine, 32% thymine
32% cytosine, 18% adenine, 32% thymine
18% cytosine, 64% adenine, 64% thymine
32% cytosine, 32% adenine, 18% thymine
Which of the following best describes a DNA molecule?
double helix
contains ribose
made of amino acids
contains Uracil
Why is DNA important?
it is very small and very complicated
it's in everything
it serves as the blueprint for traits of all living things
because we eat it every day for energy
What determines the code, or information, of a DNA molecule?
the shape (structure) of the nitrogen bases
the order (sequence) of the nitrogen bases
the colour of the nitrogen bases
the frequency (number) of nitrogen bases
Nitrogenous bases are joined by which type of bond?
polar bonds
ionic bonds
covalent bonds
hydrogen bonds
A long chain of amino acids is a/an
protein
nucleic acid
tRNA
mRNA
The sugar in DNA is ?
sucrose
glucose
deoxyribose
ribose
The building block of nucleic acids are nucleotides. Nucleotides are composed of a sugar, a phosphate group, and a _________________ base.
oxygen
hydrogen
nitrogen
carbon
What does DNA stand for?
Deoxyribonucleic acid
Denitrogenous acid
Deribonucleic acid
Diribonucleic acid
In eukaryotes, which organelle is DNA usually found in?
cytoplasm
vacuole
ribosome
nucleus
In prokaryotes, which organelle is DNA usually found in?
cytoplasm
vacuole
chloroplast
nucleus
