DNA, Chromosomes, & Genes
Authored by Kyndra McGregory
Biology
7th Grade
NGSS covered
Used 4K+ times
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About
This quiz thoroughly examines the fundamental concepts of molecular biology at the 7th grade level, focusing specifically on the relationship between DNA, genes, and chromosomes. Students need a solid understanding of cell structure, particularly the nucleus as the location of genetic material, and must grasp the hierarchical organization from DNA nucleotides to genes to chromosomes to the complete genome. The questions assess conceptual knowledge of DNA as the "recipe" or instructions for life, made up of four nucleotides (A, T, C, G), which are organized into genes that code for specific proteins, and bundled into chromosomes. Students must understand that humans have 23 pairs of chromosomes (46 total), distinguish between individual genes versus the complete human genome, and connect these molecular concepts to real-world applications in personalized medicine. The quiz effectively uses analogies, such as comparing chromosomes to hot dog buns and DNA to the meat, to help students visualize these abstract molecular relationships. Created by Kyndra McGregory, a Biology teacher in the US who teaches grade 7. This assessment serves as an excellent formative evaluation tool to gauge student comprehension after introducing basic genetics concepts, and works particularly well as a review activity before moving into more complex topics like heredity and genetic variation. Teachers can deploy this quiz as a warm-up to activate prior knowledge, assign it as homework to reinforce classroom learning, or use it as a quick check for understanding during instruction. The variety of question formats, including definition matching, visual interpretation, and analogy application, allows students multiple ways to demonstrate their mastery of these foundational concepts. This quiz aligns with NGSS MS-LS3-1, which requires students to understand that genes are located in chromosomes and carry information for inherited traits, and supports Common Core literacy standards by requiring students to interpret scientific information and distinguish between accurate and inaccurate statements about genetic concepts.
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is the best definition of DNA?
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The yellow part of this picture is DNA. What do you think the turquoise part around it is?
Tags
NGSS.HS-LS3-1
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
DNA is inside your cells. What part of the cell is the DNA inside of?
Tags
NGSS.MS-LS1-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a gene?
Tags
NGSS.HS-LS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the human genome?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which sentence is FALSE?
All organisms have 23 pairs of DNA.
Chromosomes are made of genes.
DNA is made out of 4 nucleotides: adenine, cytosine, thymine, guanine
DNA is the recipe for life.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following does NOT describe this picture?
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