Chapter 30.7, Problem 1MC

Summary Introduction

To determine:

The ways in which the researchers used DNA evidence to determine why ice fishes have colorless blood.

Concept introduction:

The existence of a fish with colorless blood was reported by a researcher J.T. Ruud in the year $1954$. Ruud reported that, the fish lives in the ocean waters of the Antarctica, and these ice-fish are found in the deep level in the water.