Self-paced · Biology EOC Tutoring

Inheritance lab: read the trait, build the cross

Supplemental study, not a secure assessment. The unit diagnostic and reassessment are public learner-controlled practice samples, not evidence of independent growth or retention. Source-backed content review is distinct from optional educator review.

1 focused skill · About 55 minutes · Untimed

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A short diagnostic

Answer 2 questions before studying. Two questions sample each skill; an unanswered skill is not a failed skill. You can change answers until you check them.

Use an ideal hypothetical diploid one-autosomal-gene model: equal segregation, random fertilization, independent offspring, no mutation, exact phenotype expression and equal survival. A parent is J/K. What can one gamete carry at this locus?

J/K togetherJ or K, one copyNo copy until fertilizationTwo J copies

A hypothetical model specifies U/U = narrow mark, W/W = wide mark, and U/W = both distinguishable marks. What does U/W demonstrate?

An intermediate mark under incomplete dominanceDestruction of WCodominanceTwo genes because there are two symbols

Coverage and sources

Not covered by this unit

This clinic does not complete the broader course or certify mastery, exam readiness, course credit or retention.
Writing is saved for self or optional educator review; no automated or paid AI grading.
Paper responses are not separately saved. Generic vocabulary matching is local practice, not tracked subject-specific card sorting.
Dihybrid and sex-linked crosses and full meiosis coverage are outside this one-gene clinic.

MasteriTrail instructional material, with attributed source selections where noted, aligned to selected skills in the TEA resources below. Not an official test and not endorsed by TEA.

TEA Chapter 112 Subchapter C: Biology B.8(B); B.8(A) prerequisite only ↗ · Source checked 2026-10-28

NHGRI Codominance glossary ↗ · Source checked 2026-10-28