Life Science: Biology · Inheritance and Variation of Traits

HS-LS3-3Variation of Expressed Traits

Performance expectation

Apply concepts of statistics and probability to explain the variation and distribution of expressed traits in a population.

What NYSED says about assessing it

Clarification statement

Emphasis is on the use of mathematics to describe the probability of traits as it relates to genetic and environmental factors in the expression of traits.

Assessment boundary

Assessment does not include Hardy-Weinberg calculations.

The three dimensions

Every item written to HS-LS3-3 has to assess all three dimensions together, not the content alone. This is the structural change that made older practice material stop matching the exam.

Science & engineering practice

Analyzing and Interpreting Data

Disciplinary core ideas
  • LS3.B: Variation of Traits
Crosscutting concepts
  • Scale, Proportion, and Quantity

Related performance expectations

Generate a cluster for HS-LS3-3

Phenomenon stimulus, connected items across the required types, answer key, rubric and figures drawn deterministically from a structured spec — in the format your students will sit.