Part B.
3. Describe the composition and structure of the DNA as shown in Figure 5.
4. Complete the words in the paragaph in a separate sheet of pager
5. Use the words in the box below to fill in the blanks in each pasean the terms.
Sugar-phosate
Baxtones
Α Τ
VINO
C
A T
се
T
CASA Lascer
Double Helix
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Figure 5. Double helis structure of DNA
DNA is composed of chains of
built on a
wrapped
around each other in the form of a
The backbone supports four bases:
cytosine, adenine and
Guanine pairs with
and Thymine pairs with
phosphate
thymine
deoxyribose sugar
Guanine
cytosine
adenine
nucleotide
double helix​