Grade 12 Pedigree Analysis Worksheet
Analyze and interpret pedigree charts to understand inheritance patterns of genetic traits.
Includes
Standards
Topics
Grade 12 Pedigree Analysis Worksheet
Name:
Date:
Score:
Carefully analyze the provided pedigree charts and answer the questions that follow. Use your knowledge of Mendelian genetics and inheritance patterns to determine genotypes, phenotypes, and probabilities.
Consider the following pedigree chart for a genetic disorder.
1. Is the disorder shown in the pedigree chart dominant or recessive? Justify your answer.
2. What is the most likely mode of inheritance for the trait shown in the pedigree?
Autosomal dominant
Autosomal recessive
X-linked dominant
X-linked recessive
3. In a pedigree, a square represents a , and a circle represents a .
4. If a trait is X-linked recessive, affected females must have an affected and an affected .
5. A carrier in a pedigree chart is typically represented by a half-filled shape.
True
False
6. Mitochondrial inheritance patterns show that affected mothers pass the trait to all of their children.
True
False
7. Explain how to distinguish between an autosomal recessive and an X-linked recessive inheritance pattern in a pedigree chart.
Related Worksheets
Grade 12 Biology: Dissection Fundamentals
This worksheet covers essential concepts and practices in biological dissection, including safety, tool identification, and ethical considerations for Grade 12 Biology students.
Evidence of Evolution Worksheet
Explore the various lines of evidence supporting the theory of evolution, including homologous structures, embryology, and fossil records.
Grade 12 Biology: The Integumentary System
This worksheet covers the structure, function, and common conditions of the human integumentary system for Grade 12 Biology students.
Neuromuscular Junction Worksheet
A Grade 12 Science worksheet covering the structure and function of the neuromuscular junction, including neurotransmission and muscle contraction.
Enzyme Activity Worksheet
Grade 12 Science worksheet focusing on enzyme activity, factors affecting it, and enzyme kinetics.
Muscles of the Leg: Structure and Function
A Grade 12 Biology worksheet exploring the anatomy, function, and types of muscles in the human leg.
Convergent Evolution Worksheet
Explore the concept of convergent evolution, where unrelated species develop similar traits due to similar environmental pressures.
Grade 12 Biology: Heart Rate
This worksheet explores the physiological mechanisms regulating heart rate, factors influencing it, and methods of measurement for Grade 12 Biology students.