Genetics Vocabulary Essentials For Understanding Heredity And Traits

The video tutorial introduces basic genetic terms essential for understanding heredity. It explains heredity as the transmission of traits from parents to offspring, with genes being DNA segments coding for proteins that determine traits. Variations in genes, known as alleles, are discussed, along with the concepts of heterozygous and homozygous, which describe different allele combinations. The video also covers dominant and recessive traits, explaining how they manifest in organisms. Finally, it differentiates between genotype, the genetic makeup, and phenotype, the observable traits.

What is the primary focus of genetics?

• The study of ecosystems

• The study of plants

• The study of heredity

• The study of animals

What is heredity?

• The process of cell division

• The study of ecosystems

• The passing of traits from parents to offspring

• The mutation of genes

What is a gene?

• A type of RNA

• A type of protein

• A piece of DNA that codes for a protein

• A type of cell

What is an allele?

• A type of protein

• A type of DNA

• A variation of a gene

• A type of cell

What does heterozygous mean?

• Having two different alleles

• Having two identical alleles

• Having three alleles

• Having no alleles

What does homozygous mean?

• Having three alleles

• Having two identical alleles

• Having two different alleles

• Having no alleles

What is a dominant trait?

• A trait that is always hidden

• A trait that is always visible if present

• A trait that is never visible

• A trait that is only visible in plants

What is a recessive trait?

• A trait that is never visible

• A trait that is hidden if a dominant trait is present

• A trait that is always visible

• A trait that is only visible in animals

What is a genotype?

• The diet of an organism

• The physical appearance of an organism

• The environment of an organism

• The genetic makeup of an organism

What is a phenotype?

• The genetic makeup of an organism

• The physical appearance of an organism

• The environment of an organism

• The diet of an organism