Genetics and Pedigree Analysis

Professor Willis introduces Lab 6 on Mendelian genetics, covering the history of Gregor Mendel's experiments with pea plants and the basic concepts of genetics, including genes, alleles, and inheritance patterns. The video explains how to use pedigrees to analyze genetic relationships and provides instructions for constructing pedigrees in the lab. Students are guided on how to submit their work online.

Who was the monk responsible for the foundational experiments in Mendelian genetics?

• Louis Pasteur

• James Watson

• Charles Darwin

• Gregor Mendel

What is a gene?

• A type of cell

• A molecule that stores energy

• A sequence of DNA that codes for a trait

• A protein that carries oxygen

What do we call different versions of a gene?

• Chromosomes

• Cells

• Proteins

• Alleles

If an individual inherits two identical alleles for a trait, what is this called?

• Heterozygous

• Homozygous

• Dominant

• Recessive

What determines if an allele is dominant or recessive?

• The size of the allele

• The number of chromosomes

• The color of the trait

• The expression of the trait

What is a pedigree used for in genetics?

• To track genetic relationships and inheritance

• To measure the height of plants

• To determine the age of fossils

• To calculate the speed of animals

In a pedigree, what shape represents a male?

• Circle

• Rectangle

• Square

• Triangle

What does a shaded symbol in a pedigree indicate?

• The individual is deceased

• The individual expresses the trait

• The individual is a carrier of the trait

• The individual is unrelated

What is the purpose of the lab assignment involving pedigrees?

• To study plant growth

• To create a family tree

• To determine the pattern of inheritance

• To measure genetic diversity

What should you do after completing the pedigree lab assignment?

• Submit it to Blackboard

• Mail it to the professor

• Keep it for personal records

• Post it on social media