7th grade science: 4.1 The Genetic Code Homework Answers
p. 108
Biography: Sample answers: ink stains, and x-shaped pattern, clouds…open to student interpretation
p. 109: Figure 1: 1. Humming bird; 2. Cell; 3. Chromosomes; 4. DNA double helix; 5. N bases on double
helix
p. 110: Identify the main idea: underline: “A gene is a section of a DNA molecule that contains the
information to code for one specific protein”
Apply it
1. Every person has a unique set of DNA
2. Yes; white blood cells contain DNA
Circle: suspect 3: CTAAGTC
p. 111
Figure 3: Guanine
1a. CCGATAGGT
b. Parents pass DNA that codes for the proteins that determine eye color
7th grade science: 4.1 The Genetic Code Homework Answers
p. 108
Biography: Sample answers: ink stains, and x-shaped pattern, clouds…open to student interpretation
p. 109: Figure 1: 1. Humming bird; 2. Cell; 3. Chromosomes; 4. DNA double helix; 5. N bases on double
helix
p. 110: Identify the main idea: underline: “A gene is a section of a DNA molecule that contains the
information to code for one specific protein”
Apply it
1. Every person has a unique set of DNA
2. Yes; white blood cells contain DNA
Circle: suspect 3: CTAAGTC
p. 111
Figure 3: Guanine
1a. CCGATAGGT
b. Parents pass DNA that codes for the proteins that determine eye color
7th Grade 4.2 Homework Answers
p. 112: 1. DNA, 2. Nucleus; bases from left to right: GAGTCCAGCAGAGGCACT
p. 113: 2.a circle: nitrogen base pattern
b. In the nucleus
c. The Cell would not have the genetic information to carry out its normal life activities.
p. 114 Communicate: Sample: their DNA, bone structure, or other proteins they share
p. 115 Figure 1: amino acids
Apply it!: You could test for the presence of uracil or thymine, for evidence of one strand or 2, and for
what sugar molecule each one had.
p. 117 summarize: mRNA, tRNA
1.a. circle: messenger RNA
b. the order of DNA’s nitrogen bases tells the cell what proteins to make
7th Grade 4.2 Homework Answers
p. 112: 1. DNA, 2. Nucleus; bases from left to right: GAGTCCAGCAGAGGCACT
p. 113: 2.a circle: nitrogen base pattern
b. In the nucleus
c. The Cell would not have the genetic information to carry out its normal life activities.
p. 114 Communicate: Sample: their DNA, bone structure, or other proteins they share
p. 115 Figure 1: amino acids
Apply it!: You could test for the presence of uracil or thymine, for evidence of one strand or 2, and for
what sugar molecule each one had.
p. 117 summarize: mRNA, tRNA
1.a. circle: messenger RNA
b. the order of DNA’s nitrogen bases tells the cell what proteins to make