WorksheetsDNA structure
Total questions: 20
Worksheet time: 16mins
The D in DNA stands for
double stranded
deoxyribo
denature
dicarbo
DNA is copied during
During cell division
All the time
During protein production
Which of the following is NOT part of a nucleotide
sugar
phosphate
nitrogen base
amino acid
Adenine pairs with
Thymine
Thyme
Guanine
Glutamine
The backbone of DNA is made of
base pairs
sugars and phosphates
only sugars
only phosphates
The two strands of DNA are held together with
covalent bonds
hydrogen bonds
nothing
If a DNA molecule has 30% Guanine bases, how many Cytosine bases will it have?
30%
25%
20%
10%
One function of DNA is to
code for proteins
code for lipids
code for carbohydrates
The first step in DNA replication is
to unwind and unzip the two strands
to break the backbone in half so the sequence can be copies
to attach new nucleotides
to proof read the sequence
What does semiconservative replication mean?
that the DNA is proof read at the end of the process
that the newly made DNA has one strand from the original DNA and one new strand
that the newly made DNA will send half of its strand to one cell and leave the old strand in the original cell
that the original DNA strands come back together after replication is over
Bacteria DNA looks the same as human DNA structurally speaking
True
False
Human gene can be placed into a bacteria. The bacteria can then use it to make a human protein like hair.
True
False
Which is this picture showing?
Protein synthesis
DNA replication
Gene editing
What is the name of this?
DNA
deoxyribose sugar
nucleotide
nitrogenous base
The DNA sequence is TTA CCG What is the complementary sequence?
TTA CCG
AAT GGC
GGC AAT
The DNA sequence is ATG what is the complementary sequence?
ATG
GTA
TAC
What does the term antiparallel refer to?
the two strands are connected upside down
the the DNA is made of two strands
DNA twists
DNA copies itself from bottom up to the top of the strand
The backbone is held with covalent bonds so the
sequence doesn't get out of order
base pairs don't separate
When DNA replicates what is separated?
the backbone
the base pairs
the sequence of bases
the sugar- phosphate bond
Semiconservative replication is how DNA reproduces. What does it mean
DNA will only partially copy itself
One strand is kept as a template to build the other new strand
One strand is upside down to the other strand.
One strand is made of DNA while the other strand is made of proteins
