These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

• partial: Describe the relationship between chromosomes, genes, and DNA in heredity, including the double helix structure of DNA and the historical roles of Watson, Crick, Franklin, and Wilkins

  Bounded task opportunity only; this task samples the clause using supported reconstruction of supplied hierarchy/strand scaffold; researcher recall evidence, not full coverage or learner attainment.

• blocked: Explains the hierarchy: DNA → gene → chromosome → nucleus → cell

  Exact source demand not established: Canonical DNA → gene → chromosome hierarchy is misleading: gene is a DNA segment, not a container for DNA.; Canonical human body cells claim has exceptions; most mature red blood cells have no nucleus. Historical contributions require more than crediting only the model builders. Real observation/media-dependent evidence remains conditional where required.

• partial: Describes what a gene is and what it codes for

  Bounded task opportunity only; this task samples the clause using supported reconstruction of supplied hierarchy/strand scaffold; researcher recall evidence, not full coverage or learner attainment.

• blocked: States that human body cells contain 46 chromosomes in 23 pairs

  Exact source demand not established: Canonical DNA → gene → chromosome hierarchy is misleading: gene is a DNA segment, not a container for DNA.; Canonical human body cells claim has exceptions; most mature red blood cells have no nucleus. Historical contributions require more than crediting only the model builders. Real observation/media-dependent evidence remains conditional where required.

• partial: Describes the contributions of Watson, Crick, Franklin, and Wilkins to the discovery of DNA structure

  Bounded task opportunity only; this task samples the clause using supported reconstruction of supplied hierarchy/strand scaffold; researcher recall evidence, not full coverage or learner attainment.

• partial: If {{name}} was asked what DNA actually is and where it is in the body, could they explain the relationship between DNA, genes, and chromosomes — and say roughly how many chromosomes a human cell has?

  Bounded task opportunity only; this task samples the clause using supported reconstruction of supplied hierarchy/strand scaffold; researcher recall evidence, not full coverage or learner attainment.

• Canonical DNA → gene → chromosome hierarchy is misleading: gene is a DNA segment, not a container for DNA.

• Canonical human body cells claim has exceptions; most mature red blood cells have no nucleus. Historical contributions require more than crediting only the model builders.