The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states. Introduction: Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

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Answer 1

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Chapter 24, Problem 2DQ

Summary Introduction

To review:

The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states.

Introduction:

Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

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Answer 2

Question

Chapter 24, Problem 2DQ

Summary Introduction

To review:

The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states.

Introduction:

Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

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Answer 3

Question

Chapter 24, Problem 2DQ

Summary Introduction

To review:

The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states.

Introduction:

Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

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Answer 4

Question

Chapter 24, Problem 2DQ

Summary Introduction

To review:

The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states.

Introduction:

Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

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Answer 5

Chapter 24, Problem 2DQ

Summary Introduction

To review:

The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states.

Introduction:

Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

Answer 6

Chapter 24, Problem 2DQ

Summary Introduction

To review:

The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states.

Introduction:

Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

Answer 7

Chapter 24, Problem 2DQ

Summary Introduction

To review:

The possible cause for the malformation (six or more limbs) in frogs found in certain ponds of northen united states.

Introduction:

Retinoic acid is a vitamin A derivative which play an important role in specifying the anterior posterior axis and essential for the normal growth and development in chordates. But sometime a compound required for the normal growth and development may cause deleterious effects when present in large or inappropriate quantities. The abnormal limb development in the frogs of northen united states also associated with the increase in retinoic acid in frog limb buds following the frog association with a parasite named as Ribeiroia.

Answer 8

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Answer 11

Ch. 24 - Prob. 1DQ Ch. 24 - Prob. 2DQ

Solution Summary: The author concludes that the parasite Ribeiroia is the causal organism for the malformation of six or more limbs in frogs.

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