What Are Genes?

The video tutorial explores the concept of genetic traits, explaining how physical characteristics like eye color and hair color are determined by genetics. It delves into the role of genes and alleles in trait inheritance, highlighting the difference between single-gene traits and those influenced by multiple genes. The tutorial also discusses the concepts of dominant and recessive alleles, using earlobe attachment as an example. Finally, it introduces the genome, the complete set of genetic material in an organism, and its significance in heredity.

Which of the following is an example of a genetic trait?

• Eye color

• Favorite food

• Language spoken

• Hobbies

What is the role of genes in an organism?

• They control the organism's emotions

• They decide the organism's lifespan

• They code for the production of specific proteins

• They determine the organism's diet

What is a single-gene trait?

• A trait determined by multiple genes

• A trait that changes over time

• A trait influenced by environmental factors

• A trait determined by one set of alleles

What does it mean if an individual is heterozygous for a trait?

• They have two identical alleles for a trait

• They have no alleles for a trait

• They have a dominant allele only

• They have two different alleles for a trait

What is the complete set of genetic material in an organism called?

• Allele

• Chromosome

• Protein

• Genome