WorksheetsDNA
Total questions: 15
Worksheet time: 10mins
Where is our DNA located ? ( select 2 boxes )
inside the chromosomes
comes from the food we eat
inside the cells
in the air we breathe
What is the shape of DNA ?
straight line thread
double helix
square shape
rectangle shape
Why does DNA is shaped like this ? ( in the figure)
to fit in the large space of the chromosome
to fit in the small space of the chromosomes
to have less genetic information
The basic unit of DNA is called
nucleus
nucleotide
tide
molecule
Label the part A in the figure .
sugar
nitrogen base
phosphate group
atom
Label the part B in the figure .
sugar
nitrogen base
phosphate group
atom
Label the part C in the figure .
sugar
nitrogen base
phosphate group
atom
which of the following is NOT a name of a nitrogen base in the DNA ?
adenine
cytosine
guanine
melamine
Which of the following is a part of nucleotide in DNA ?
nitrogen base
hydrogen base
nitrate group
salt
What is DNA replication ?
Process of DNA copying itself to make another DNA
process of DNA destroying itself when the cell dies
process of DNA correcting the mistakes in its codes
the process of the two DNA joining to make later DNA
What is mutation ?
change in color of organism
change in DNA of the organism
change in the location of the organism
What is the type of mutation 1 in the figure ?
insertion
deletion
substitution
What is the type of mutation 2 in the figure ?
insertion
deletion
substitution
What is the type of mutation 3 in the figure ?
insertion
deletion
substitution
which of the following are NOT causes mutation ? ( select 2 boxes )
x-ray
chemicals
weather changes
type of the natural food organism eat
radiation such as Ultraviolet
