QuestionAugust 6, 2025

4. Write the names of all four nitrogenous bases: A __ T __ C __ __ Start building the model by pairing the nitrogen bases. Pair all bases before proceeding. A __ pairs with T __ C __ pairs with __ 5. Start building your molecule upwards by locking four nucleotides together, In your model, the sugar of the lower nucleotide bonds with the __ of the upper nucleotide. Once you finish assembling the base pairs, continue to form the helical structure by connecting the sugar-phosphate sides of the ladder. 6. Add another pair of nucleotides. Your molecule is now three nucleotides long and all nucleotides are paired up (so your molecule has a total of six nucleotides). 7. Visit another group. Compare your DNA model to the DNA model made by the other group and answe the following questions:

4. Write the names of all four nitrogenous bases: A __ T __ C __ __ Start building the model by pairing the nitrogen bases. Pair all bases before proceeding. A __ pairs with T __ C __ pairs with __ 5. Start building your molecule upwards by locking four nucleotides together, In your model, the sugar of the lower nucleotide bonds with the __ of the upper nucleotide. Once you finish assembling the base pairs, continue to form the helical structure by connecting the sugar-phosphate sides of the ladder. 6. Add another pair of nucleotides. Your molecule is now three nucleotides long and all nucleotides are paired up (so your molecule has a total of six nucleotides). 7. Visit another group. Compare your DNA model to the DNA model made by the other group and answe the following questions:
4. Write the names of all four nitrogenous bases: A __ T __ C __ __ Start building the model by pairing the nitrogen bases. Pair all bases before proceeding. A __ pairs with T __ C __ pairs with __ 5. Start building your molecule upwards by locking four nucleotides together, In your model, the sugar of the lower nucleotide bonds with the __ of the upper nucleotide. Once you finish assembling the base pairs, continue to form the helical structure by connecting the sugar-phosphate sides of the ladder. 6. Add another pair of nucleotides. Your molecule is now three nucleotides long and all nucleotides are paired up (so your molecule has a total of six nucleotides). 7. Visit another group. Compare your DNA model to the DNA model made by the other group and answe the following questions:

Solution
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Answer

A - Adenine, T - Thymine, C - Cytosine, G - Guanine; A pairs with T, C pairs with G. Explanation 1. Identify Nitrogenous Bases The four nitrogenous bases in DNA are Adenine (A), Thymine (T), Cytosine (C), and Guanine (G). 2. Pair Nitrogenous Bases Adenine (A) pairs with Thymine (T), and Cytosine (C) pairs with Guanine (G). 3. Build Nucleotide Model In a nucleotide model, the sugar of the lower nucleotide bonds with the phosphate group of the upper nucleotide. 4. Form Helical Structure Connect the sugar-phosphate backbone to form the helical structure of DNA. 5. Extend the DNA Model Add another pair of nucleotides to make the molecule three nucleotides long, ensuring all are paired correctly.

Explanation

1. Identify Nitrogenous Bases<br /> The four nitrogenous bases in DNA are Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).<br /><br />2. Pair Nitrogenous Bases<br /> Adenine (A) pairs with Thymine (T), and Cytosine (C) pairs with Guanine (G).<br /><br />3. Build Nucleotide Model<br /> In a nucleotide model, the sugar of the lower nucleotide bonds with the phosphate group of the upper nucleotide.<br /><br />4. Form Helical Structure<br /> Connect the sugar-phosphate backbone to form the helical structure of DNA.<br /><br />5. Extend the DNA Model<br /> Add another pair of nucleotides to make the molecule three nucleotides long, ensuring all are paired correctly.
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