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Ch. 23 - Developmental Genetics

Chapter 22, Problem 2

Write a short essay based on these concepts that outlines the role of differential transcription, gene control of cell fate, and the role of signaling systems in development.

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Hey, everyone. Let's take a look at this question together. How do undifferentiated cells become differentiated cells during development? Is it answer choice A through DNA synthesis. Answer choice B through mitotic cell division. Answer choice C through gene activation or answer choice D through gammy production. Let's work this problem out together to try to figure out which of the following answer. Choices is the correct answer. So we know that the process of undifferentiated cells becoming differentiated cells involves that process of differentiation. And we know that the process of differentiation in cells starts from the activation. And we know that this process of gene activation is when the gene is activated or transcribed, it is then followed bye amino acid production. And those amino acids that are produced are used to form the tissue specific proteins which can make the cells jane there specific functions. So now we know that the process of differentiation starts from gene activation, which means that the process of undifferentiated cells becoming differentiated cells during development occurs through gene activation, which is answer choice C the correct answer. And we know that it is answer choice C through gene activation. Because the process of differentiation in which those un differentiated cells become differentiated cells starts from gene activation in which a gene is activated and then followed by amino acid production. And those amino acids then form the tissue specific proteins that can make the cells gain their specific functions and specialization. Thus confirming our answer, selection of answer choice C through gene activation. As the correct answer. I hope you found this video to be helpful. Thank you and goodbye.
Related Practice
Textbook Question

In this chapter, we have focused on large-scale as well as the inter- and intracellular events that take place during embryogenesis and the formation of adult structures. In particular, we discussed how the adult body plan is laid down by a cascade of gene expression, and the role of cell–cell communication in development. Based on your knowledge of these topics, answer several fundamental questions:

How did we discover that selector genes specify which adult structures will be formed by body segments?

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Textbook Question

In this chapter, we have focused on large-scale as well as the inter- and intracellular events that take place during embryogenesis and the formation of adult structures. In particular, we discussed how the adult body plan is laid down by a cascade of gene expression, and the role of cell–cell communication in development. Based on your knowledge of these topics, answer several fundamental questions:

How did we learn about the levels of gene regulation involved in vulval development in C. elegans?

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Textbook Question

In this chapter, we have focused on large-scale as well as the inter- and intracellular events that take place during embryogenesis and the formation of adult structures. In particular, we discussed how the adult body plan is laid down by a cascade of gene expression, and the role of cell–cell communication in development. Based on your knowledge of these topics, answer several fundamental questions:

How do we know that eye formation in all animals is controlled by a binary switch gene?

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Textbook Question
Carefully distinguish between the terms differentiation and determination. Which phenomenon occurs initially during development?
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Textbook Question
Nuclei from almost any source may be injected into Xenopus oocytes. Studies have shown that these nuclei remain active in transcription and translation. How can such an experimental system be useful in developmental genetic studies?
214
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Textbook Question
Distinguish between the syncytial blastoderm stage and the cellular blastoderm stage in Drosophila embryogenesis.
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