The gene which is likely to act earlier in the pathway responsible for the development of vulva. Introduction: Vulva is an opening in the mid of the body of C. elegans . Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

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Answer 1

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Chapter 23, Problem 22ESP

(a)

Summary Introduction

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

(b)

Summary Introduction

To determine: The phenotype that is expected to form from the double mutant.

Introduction: Initially, the gonadal anchor cell is determined, and then the second round of cell-cell interaction is initiated, which leads to the formation of the vulva. This interaction involves the cells which are present in gonads and the precursor cells.

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A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. Suppose that somite stem cells commit to their cell fates by three days post fertilization. Which result would be MOST likely in the chick embryos receiving somites transplanted in the reverse order? A. The organs arising from quail somites develop in a normal order because local signaling molecules appropriately pattern the developing organs. B. The organs arising from quail somites develop in a normal order because transcriptional programs activated in the nucleus cannot be reversed.…

A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. Observations of the developing chick embryo reveal that skeletal muscles develop from the transplanted somites even though motor neurons innervating those muscles arise from chick neural crest cells. Based on these observations, what is MOST likely true? A. Neural crest cells differentiate into somites. B. Neural crest cells fuse with developing somite cells. C. Neural crest cells develop from migrating somite cells. D. Neural crest cells send projections into developing…

A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. As the somite cells develop into muscles, regular depolarizations in the muscles are required for the brain to properly form circuits with developing organs. Based on this observation, which prediction is MOST likely true? A. The muscles release neurotransmitters to stimulate the innervating neurons. B. The innervating neurons release neurotransmitters to stimulate the muscles. C. The muscles release hormones to stimulate the innervating neurons. D. The innervating neurons…

Answer 2

Question

Chapter 23, Problem 22ESP

(a)

Summary Introduction

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

(b)

Summary Introduction

To determine: The phenotype that is expected to form from the double mutant.

Introduction: Initially, the gonadal anchor cell is determined, and then the second round of cell-cell interaction is initiated, which leads to the formation of the vulva. This interaction involves the cells which are present in gonads and the precursor cells.

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Answer 3

Question

Chapter 23, Problem 22ESP

(a)

Summary Introduction

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

(b)

Summary Introduction

To determine: The phenotype that is expected to form from the double mutant.

Introduction: Initially, the gonadal anchor cell is determined, and then the second round of cell-cell interaction is initiated, which leads to the formation of the vulva. This interaction involves the cells which are present in gonads and the precursor cells.

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Answer 4

Question

Chapter 23, Problem 22ESP

(a)

Summary Introduction

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

(b)

Summary Introduction

To determine: The phenotype that is expected to form from the double mutant.

Introduction: Initially, the gonadal anchor cell is determined, and then the second round of cell-cell interaction is initiated, which leads to the formation of the vulva. This interaction involves the cells which are present in gonads and the precursor cells.

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Answer 5

Chapter 23, Problem 22ESP

(a)

Summary Introduction

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

(b)

Summary Introduction

To determine: The phenotype that is expected to form from the double mutant.

Introduction: Initially, the gonadal anchor cell is determined, and then the second round of cell-cell interaction is initiated, which leads to the formation of the vulva. This interaction involves the cells which are present in gonads and the precursor cells.

Answer 6

Chapter 23, Problem 22ESP

(a)

Summary Introduction

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

Answer 7

Chapter 23, Problem 22ESP

(a)

Summary Introduction

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

Answer 8

(b)

Summary Introduction

To determine: The phenotype that is expected to form from the double mutant.

Introduction: Initially, the gonadal anchor cell is determined, and then the second round of cell-cell interaction is initiated, which leads to the formation of the vulva. This interaction involves the cells which are present in gonads and the precursor cells.

Answer 9

(b)

Summary Introduction

To determine: The phenotype that is expected to form from the double mutant.

Introduction: Initially, the gonadal anchor cell is determined, and then the second round of cell-cell interaction is initiated, which leads to the formation of the vulva. This interaction involves the cells which are present in gonads and the precursor cells.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 23 - Suppose you initiate a screen for maternal-effect...Ch. 23 - Prob. 2NST Ch. 23 - Prob. 1CS Ch. 23 - Prob. 2CS Ch. 23 - Prob. 1PDQ Ch. 23 - Prob. 2PDQ Ch. 23 - Prob. 3PDQ Ch. 23 - Nuclei from almost any source may be injected into...Ch. 23 - Distinguish between the syncytial blastoderm stage...Ch. 23 - Prob. 6PDQ

The gene which is likely to act earlier in the pathway responsible for the development of vulva. Introduction: Vulva is an opening in the mid of the body of C. elegans . Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

Solution Summary: The author explains that vulva is an opening in the mid of the body of C. elegans.

Videos

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

Want to see the full answer?

Chapter 23 Solutions

The gene which is likely to act earlier in the pathway responsible for the development of vulva. Introduction: Vulva is an opening in the mid of the body of C. elegans . Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

Solution Summary: The author explains that vulva is an opening in the mid of the body of C. elegans.

Videos

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva. Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.

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Chapter 23 Solutions

To describe: The gene which is likely to act earlier in the pathway responsible for the development of vulva.

Introduction: Vulva is an opening in the mid of the body of C. elegans. Eggs are laid through this opening, and this opening is formed during the developmental stages of the larva.