Chapter 4.1, Problem 19AQP

Summary Introduction

To determine:

How sex is determined in salamanders.

Introduction:

Salamanders are a group of amphibians typically characterized by a lizard-like appearance, with slender bodies, short limbs projecting at right angles to the body and presence of a tail in both larvae stage and adults.

Summary Introduction

To determine:

In certain salamanders, it is possible to alter the sex of a genetic female, making her into a functional male. These salamanders are called sex-reversed males. When a sex reversed male is mated with a normal female, approximately $\frac{2}{3}$ of the offsprings are female and $\frac{1}{3}$ are male, so what could be the results of this cross.

Introduction:

Salamanders are usually found in moist or arid habitat. Like other amphibians, they absorb water through their skins. In a region where the temperature goes below freezing, they often hibernate at that time.