What’s on the Pedigree Analysis poster
A 5-row table: Pattern · Clue.
Diagnostic clues for each pattern.
- Autosomal dominant — Appears every generation; affected have an affected parent
- Autosomal recessive — Can skip generations; unaffected parents, affected child
- X-linked recessive — Mostly males; no father-to-son transmission
- X-linked dominant — Affected fathers pass to all daughters, no sons
- Mitochondrial — Only mothers transmit; all children affected
No father-to-son transmission is the signature of X linkage: a father gives his son a Y, never his X.
Questions about the Pedigree Analysis poster
- What’s on the Pedigree Analysis poster?
- A 5-row table: Pattern · Clue. Diagnostic clues for each pattern. Autosomal dominant — Appears every generation; affected have an affected parent; Autosomal recessive — Can skip generations; unaffected parents, affected child; X-linked recessive — Mostly males; no father-to-son transmission; X-linked dominant — Affected fathers pass to all daughters, no sons; Mitochondrial — Only mothers transmit; all children affected. No father-to-son transmission is the signature of X linkage: a father gives his son a Y, never his X.
- Who is the Pedigree Analysis poster for?
- Pedigree Analysis belongs to the Biology section rather than to a school year, because life science is not something one grade owns. Anyone learning genetics can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Pedigree Analysis poster?
- Two affected parents with an unaffected child means dominant. One rule settles many pedigrees. A wall chart earns its place by being glanceable from where the work is happening, so Pedigree Analysis belongs on the wall where that life science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Pedigree Analysis?
- CRISPR-Cas9, DNA Sequencing and Epigenetics sit alongside Pedigree Analysis in the Biology section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.CRISPR-Cas9DNA SequencingEpigenetics
- Is the Pedigree Analysis poster free to download and print?
- Yes. Pedigree Analysis downloads as a free PDF with no account, no email and no watermark, like everything else in the Biology section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Pedigree Analysis poster print at?
- Pedigree Analysis is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Pedigree Analysis loses nothing.Printing guide
Related posters
Charts that sit alongside Pedigree Analysis on the same wall.
Browse every Biology poster, or start from the full catalogue.