Genetics Terminology and Concepts

This video from MooMooMath and Science explains the difference between genotype and phenotype. It covers how genetic information is stored in chromosomes and genes, and describes the three types of genotypes: homozygous dominant, homozygous recessive, and heterozygous. The video also discusses alleles and how they determine traits, using examples like hair texture. It concludes with examples of phenotype expressions, such as a dog's round nose or a cat's black hair, and encourages viewers to subscribe for more educational content.

What is the term for the genetic code that determines many of your traits?

• Allele

• Chromosome

• Genotype

• Phenotype

Where is genetic information stored within a cell?

• In the ribosomes

• In the cytoplasm

• In the mitochondria

• In the chromosomes

Which of the following is NOT a type of genotype?

• Phenotypic dominant

• Homozygous recessive

• Heterozygous

• Homozygous dominant

What do you call different forms of the same trait?

• Phenotypes

• Chromosomes

• Alleles

• Genes

Which type of allele can mask the presence of another?

• Recessive allele

• Dominant allele

• Heterozygous allele

• Homozygous allele

What must be true for a recessive trait to be expressed?

• At least one dominant allele is present

• Both alleles must be recessive

• The trait is linked to a dominant gene

• The trait is expressed in the phenotype

Which of the following is an example of a phenotype?

• A gene sequence

• A round nose

• A DNA strand

• A chromosome

What is the physical expression of a genotype called?

• Phenotype

• Allele

• Genotype

• Gene

Which of the following statements is true about alleles?

• Alleles are always dominant

• Alleles determine the number of chromosomes

• Alleles are found only in plants

• Alleles are different forms of a gene