This worksheet is a coloring activity designed to help you visualize the structure of DNA and RNA. Since I cannot physically color the page for you, here are the specific instructions on which parts to color and what colors to use, based on the text provided in the document.
Part 1: DNA Structure (The Double Helix)
Look at the large twisted ladder diagram at the top right. You need to color the different chemical parts according to these rules found in the text:
*
Phosphates: Color them
Pink.
* *Hint:* Look for the small circles labeled with a "P". These are on the outside edges of the ladder.
*
Deoxyriboses (Sugars): Color them
Blue.
* *Hint:* Look for the pentagon shapes labeled with a "D". These connect the phosphates together on the outside edge.
*
Hydrogen Bonds: Color them
Gray.
* *Hint:* These are the tiny connections in the very center holding the two halves of the ladder together. The text says they are represented by small circles between the base pairs.
Coloring the Base Pairs (The Rungs of the Ladder):
The text gives specific colors for the four nitrogenous bases that make up the steps of the ladder. Match the shapes or letters in your diagram to these colors:
*
Thymine: Color
Orange.
*
Adenine: Color
Green.
*
Guanine: Color
Purple.
*
Cytosine: Color
Yellow.
*(Note: In DNA, Adenine always pairs with Thymine, and Guanine always pairs with Cytosine. So, a Green shape should always be connected to an Orange shape, and a Purple shape should always be connected to a Yellow shape.)*
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Part 2: Messenger RNA (mRNA)
Look at the bottom section of the worksheet where it discusses Messenger RNA. There is a small bracketed shape at the very bottom representing a part of the mRNA strand.
*
Ribose: Color it a
Darker Blue.
* *Hint:* This is the sugar backbone of the RNA.
*
Uracil: Color it
Brown.
* *Hint:* Uracil replaces Thymine in RNA.
Final Answer
To complete your homework, apply the following colors to your diagram:
DNA Diagram:
*
Phosphates (P): Pink
*
Deoxyribose Sugars (D): Blue
*
Hydrogen Bonds (center dots): Gray
*
Thymine bases: Orange
*
Adenine bases: Green
*
Guanine bases: Purple
*
Cytosine bases: Yellow
mRNA Section (Bottom):
*
Ribose sugar: Darker Blue
*
Uracil base: Brown
Parent Tip: Review the logic above to help your child master the concept of double helix worksheet.
