The Massive Early Jawed Fishes Were Called

question 28

Multiple Choice

The massive early jawed fishes were called:

• A)whales
• B)coelacanths
• C)placoderms
• D)lampreys

---

Definitions:

Dominant Traits

Genetic characteristics that are expressed in an organism even when only one copy of the gene is present.

Incomplete Dominance

A genetic phenomenon where the phenotype of the heterozygote lies somewhere between the phenotypes of the two homozygotes.

Red-Green Colorblindness

A form of color vision deficiency where individuals have difficulty distinguishing between red and green hues due to the absence or malfunction of red or green retinal photoreceptors.

Recessive Gene

A gene that produces its characteristic phenotype only when its allele is identical.