1. Aim: What is the connection between DNA & protein?

2. I. Proteins Long chains (polymers) of
They are formed from different amino acids.
Amino acids 20

3. *REMEMBER The of amino acids influences the proteins shape.
The shape of a protein gives it it’s
sequence
function

4. *DNA-PROTEIN CONNECTION
contain coded information
This information is used to make
that are required for it’s shape & function.
Genes
proteins

5. II. Where does protein synthesis take place?
RIBOSOMES

6. Ribosomes construct proteins based on the cells code.
Parent and offspring produce similar
That is why there is between
them (They produce similar ).
genetic
characteristics/traits.
resemblance
proteins

8. Proteins- made using a person’s
(DNA).
In order to do this,
is used.
genetic code
RNA

9. A pairs up with U (uracil).
III. RNA
stranded.
Nitrogenous bases are:
*A- adenine
*U- uracil
*C- cytosine
*G- guanine
Ribonucleic Acid
Ribose (sugar)
Single
Instead of T (thymine),
A pairs up with U (uracil).

10. IV: Fill in the RNA strand:
DNA: C A G A T G T A A C T G T A A C T
RNA: G U C U A C A U U G A C A U U G A
*T from the DNA strand will still pair up
with on the RNA strand, but A on the
DNA strand will pair up with on the RNA
strand. A U

11. There are two types of RNA. Both of them help with protein synthesis
tRNA
mRNA

12. Messenger RNA (mRNA) Copies genetic code from DNA This is called
Brings code to
* remember, when it copies the code from DNA, A will pair up with (there will not be any in RNA).
DNA
transcription
ribosome U T

13. Transfer RNA (tRNA) amino acids translation. Brings to the ribosome
for protein
assembly.
This is called
amino acids
translation.

14. Comparing DNA and RNA single stranded smaller Double stranded larger
BOTH
RNA
single stranded smaller
Double stranded larger
Genetic information
uracil
thymine
Nucleic Acid
ribose
deoxyribose
Nucleotides
(sugar, phosphate, base)
2 types
mRNA and tRNA
nucleus

15. 1. DNA controls cellular activities most directly by coding for the synthesis of
a. inorganic compounds c. carbohydrates
b. enzymes d. fatty acids
2. Which base is normally found in the synthesis of RNA but not in the synthesis of DNA?
a. adenine c. uracil
b. cytosine d. guanine
3.The care of a virus may contain either DNA or RNA. To identify which nucleic acid is present, a biochemist could chemically analyze the virus for the presence of
a. guanine c. cytosine
b. ribose d. phosphate

16. 4. Which of the following nucleic acids are composed of nucleotides. a
4. Which of the following nucleic acids are composed of nucleotides? a. DNA only c. Messenger RNA only b. Transfer RNA only d. DNA, mRNA, and tRNA 5. one similarity between DNA and mRNA is that they both contain a. the same sugar c. uracil b. double stranded polymers d. genetic code based on sequences of bases