Mississippi Science BIO.3C.1
The Standard
- BIO.3C
- Students will construct an explanation based on evidence to describe how the structure and nucleotide base sequence of DNA determines the structure of proteins or RNA that carry out essential functions of life.
Develop and use models to explain the relationship between DNA, genes, and chromosomes in coding the instructions for the traits transferred from parent to offspring.
2026 Mississippi College- and Career-Readiness Standards for Science · Reproduction and Heredity
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students build a model showing genes as stretches of DNA packed into chromosomes. They trace how a child inherits chromosomes from parents and how different versions of a gene can affect a trait.
What Mastery Looks Like
- A student can label DNA, a gene, and a chromosome on one model and explain how they fit together. They can trace a gene version from each parent to a child and explain how those versions might affect a protein and a trait.
Common Misconceptions
- Students may draw genes, DNA, and chromosomes as three separate substances. They may think a child gets each trait from only one parent, or that one gene always determines a trait by itself.
How to Assess It
- Exit ticket: Draw one chromosome from each parent forming a matching pair in a child. Label DNA and the same gene on both chromosomes, then explain how different gene versions could affect a trait.
Lesson moves
Ways to Teach It
Mark a gene on yarn DNA with tape, then wind the yarn around beads to model how DNA is packed in a chromosome.
Ask: “If siblings have the same parents, why can they look different?” Have pairs use a chromosome sketch to explain.
Give pairs two allele cards per parent; they draw one from each parent and label both on matching child chromosomes.
Give students a fictional hemoglobin test report for parents and child; they trace each inherited gene version and name the protein affected.
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Printable BIO.3C.1 Worksheet
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Related Standards
- GEN.1B.2
Develop and use models to illustrate the mechanics of DNA replication.
- L.8.2C.1
Communicate through diagrams that chromosomes contain many distinct genes and that each gene holds the instructions for the production of specific proteins, whi...
- L.8.2A.1
Use a model to show the relationship of genes, chromosomes, and DNA, and construct explanations comparing their relationship to inherited characteristics.
- FB.4.3
Use models (e.g., Punnett squares) and mathematical reasoning to describe and predict patterns of inheritance of single genetic traits from parents to offspring...
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