You will start off by laying out your individual nucleotides for the first strand using the following sequence:  A, C, G, T. 2. Using a pem or pemcil, indicate the phosphodiester bond that forms between each of the nucleotides.  Look at figure 7  Label the 5' and 3' ends of the strand you just built.   Identify and label one purine and one pyrimidine nitrogen base.     2. You are now ready to build your second strand.   The second strand will be antiparallel.   You will need to flip the nucleotides upside down to form hydrogen

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1) You will start off by laying out your individual nucleotides for the first strand using the following sequence:  A, C, G, T. 2.

Using a pem or pemcil, indicate the phosphodiester bond that forms between each of the nucleotides.  Look at figure 7 

Label the 5' and 3' ends of the strand you just built.   Identify and label one purine and one pyrimidine nitrogen base.  

 

2. You are now ready to build your second strand.   The second strand will be antiparallel.   You will need to flip the nucleotides upside down to form hydrogen bonds between the nitrogen bases.  Remember, A bonds to T through 2 hydrogen bonds and C to G with 3 hydrogen bonds.  Draw in the hydrogen bonds with a chalk marker.  Look at figure 8.

 Label the 5' and 3' ends of the second strand.  Take a photo of your completed molecule and insert it into your lab notebook.

 

3. Explain dehydration synthesis, including what atoms are removed, and what molecule becomes a byproduct of these reactions.

Figure 7: Dehydration Synthesis Forms a Nucleic Acid Strand. Left image created by Susan Tappen, 2018. Right image from Microbiology - OpenStax.
S
S
P
S
phosphodiester-
bond
-a-f-a-ç®
ester bond
ester bond
HN
-O-P-O-C5
ö
T ||
H
OH
-O-P-O
ő
CH
NH₂
OH
NH₂
Transcribed Image Text:Figure 7: Dehydration Synthesis Forms a Nucleic Acid Strand. Left image created by Susan Tappen, 2018. Right image from Microbiology - OpenStax. S S P S phosphodiester- bond -a-f-a-ç® ester bond ester bond HN -O-P-O-C5 ö T || H OH -O-P-O ő CH NH₂ OH NH₂
Figure 7: Dehydration Synthesis Forms a Nucleic Acid Strand. Left image created by Susan Tappen, 2018. Right image from Microbiology - OpenStax.
S
S
P
S
phosphodiester-
bond
-a-f-a-ç®
ester bond
ester bond
HN
-O-P-O-C5
ö
T ||
H
OH
-O-P-O
ő
CH
NH₂
OH
NH₂
Transcribed Image Text:Figure 7: Dehydration Synthesis Forms a Nucleic Acid Strand. Left image created by Susan Tappen, 2018. Right image from Microbiology - OpenStax. S S P S phosphodiester- bond -a-f-a-ç® ester bond ester bond HN -O-P-O-C5 ö T || H OH -O-P-O ő CH NH₂ OH NH₂
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