This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate student’s writing of lab reports by providing this information in an editable file which can be sent to an instructor.
Exercise 1: Modeling DNA
The students must attach the DNA model to this lab report.
Note which nucleotides form pairs—cytosine and guanine, and adenine and thymine form pairs.
A. The following list indicates the bases on one strand of a DNA molecule. Write in the names of the bases that could pair with each to make the complementary strand.
cytosine | guanine | adenine | thymine |
adenine | Thymine | guanine | cytosine |
cytosine | guanine | thymine | adenine |
cytosine | guanine | guanine | cytosine |
B. What are the three components of a DNA nucleotide? How do these molecules connect together?
- The three components of a DNA nucleotide are sugar deoxyribose, nitrogen containing bases, and phosphate groups. The molecules are all connected by covalent bonds.
C. What are the four bases found in DNA? Which of these bases pair together?
- The four bases found in DNA are Adenine, guanine, thymine, and cytosine. Adenine pairs with thymine and cytosine pairs with guanine.
Exercise 2: The Globin Gene
1. Complete the DNA molecule by writing a complementary strand.
Coding Strand: CGT CTC TTC GGA CAC Complementary Strand: GCA GAG AAG CCT GTG
2. Write the mRNA sequence that will be created in the process of transcription. The DNA coding strand has the information for the gene, so the strand must be... [continues]
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