Download DNA Crossword Puzzle

DNA Crossword Puzzle
Name _______________________
Class ______________
Date ______________
1
2
T
P
H
3
C Y
4
N
5
U
S
C
8
N
L
G
E
A
I
T
R O
T
E
I
R O G E
D
T O S
M
S
I
P
N
H
E
A
O
N O U S
U
O
B
D N A
A
L
N U C
N
D
I
12
C
7
M
10
A
P
A
9
C
13
6
U
H
L
E O
T
B
A
S
E
11
A
T
I
D E
I
I
H
E
N
D
E
N
E
S
L
I
I
N
X
E
I
N E
Across
Down
3. One of the four nitrogenous bases in the double
helix of DNA. It always bonds to guanine in
DNA. It also occurs in RNA. [CYTOSINE]
8. A sub-unit of a nucleotide. The four in DNA are
adenine, cytosine, guanine, and thymine. Uracil
replaces thymine in RNA. Pairs of these form
the rungs of the DNA ladder.
[NITROGENOUSBASE]
10. Deoxyribonucleic acid. A molecule that is
present in all living cells and that contains the
information that determines the traits that a
living thing inherits and needs to live. [DNA]
12. A sub-unit of a nucleic acid chain (DNA or RNA)
that is composed of a sugar, a phosphate, and a
nitrogenous base. [NUCLEOTIDE]
13. One of a family of large, complex molecules
made up of chains of amino acids. [PROTEIN]
1. One of the four nitrogenous bases in the double
helix of DNA. It always bonds to adenine in
DNA. It does not occur in RNA. [THYMINE]
2. A molecule that along with a sugar forms the
legs of the ladder of DNA. [PHOSPHATE]
4. A molecule composed of strings of nucleotides.
They act as the genetic material of cells and
occur as either the double helix DNA or the
single helix RNA. [NUCLEICACID]
5. A simple carbohydrate molecule. Along with the
phosphate these form the legs of the ladder of
DNA. [SUGAR]
6. One of the about 20 organic molecules that
make up proteins. [AMINOACIDS]
7. The shape of the DNA molecule. It is a twisted
ladder with the legs of the ladder made of
alternating sugar parts and phosphate parts and
the rungs of the ladder made of pairs of bases.
[DOUBLEHELIX]
9. One of the four nitrogenous bases in the double
helix of DNA. It always bonds to cytosine in
DNA. It also occurs in RNA. [GUANINE]
11. One of the four nitrogenous bases in the double
helix of DNA. It always bonds to thymine in
DNA. In RNA it bonds to uracil. [ADENINE]