Shared Flashcard Set

Details

Title

BS110 - Exam 2

Description

3 ways in which we can tell species are related

Total Cards

Subject

Biology

Level

Undergraduate 1

Created

02/25/2008

Click here to study/print these flashcards.

Create your own flash cards! Sign up here.

Additional Biology Flashcards

Term

3 ways

Definition

structural
developmental
genetic

Term

Structural Homologies

Definition

similarity due to common ancestry
similarity of morpholohical traits
ex: same morphological structure in tetrapods

Term

Developmental Homologies

Definition

Similarity in embryo morphology (from) and/or pattern of tissue differentiation
ex: all vertebrates have gill pouches and tails as early embryos

Term

Genetic Homologies

Definition

similarity in the DNA sequences of genes from different species.
example: similar amino acid sequences in humans and fruit flys