Genetics

What does heredity mean?

• the passing of traits from parents to offspring

• the study of how traits are passed from parents to offspring

• the traits someone has

What is the difference between heredity and genetics?

• Heredity is the passing of traits from parents to offspring, and genetics is the study of heredity.

• Genetics is the passing of traits from parents to offspring, and heredity is the study of genetics.

Gregor Mendel's work with _______ plants helped people understand how ___________ were passed through generations.

• pea/traits

• tomato/genes

• pea/genes

What is a dominant trait?

• a distinguishing characteristic.

• A genetic factor that blocked by the presence of a dominant factor, ex. Brown eyes are dominant and blue eyes are recessive.

• A genetic factor that blocks another genetic factor, ex. Brown eyes are dominant and blue eyes are recessive.

What is a recessive trait?

• a distinguishing characteristic.

• A genetic factor that blocked by the presence of a dominant factor, ex. Brown eyes are dominant and blue eyes are recessive.

• A genetic factor that blocks another genetic factor, ex. Brown eyes are dominant and blue eyes are recessive.

Select all that are heterozygous alleles.

• XX

• Xx

• Bb

• NN

• Ll

Select all that are homozygous alleles.

• XX

• Xx

• Bb

• NN

• Ll

Combinations of genes like WW or Ww are called...

• phenotype

• genotype

• trait

If a flower is purple or white, the appearance of the flower, is called....

• genotype

• phenotype

• DNA

Genotype or Phenotype: ff

• Genotype

• Phenotype