BIOLOGY W/CONNECT >IP<
11th Edition
ISBN: 9781259910487
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 53, Problem 4S
Spemann and Mangold were able to demonstrate that some cells act as “organizers” during development. What types of cells did they use? How did they determine that these cells were organizers?
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Chapter 53 Solutions
BIOLOGY W/CONNECT >IP<
Ch. 53 - Prob. 1UCh. 53 - Which of the following plays the greatest role in...Ch. 53 - Gastrulation is a critical event during...Ch. 53 - Gastrulation in a mammal would be most similar to...Ch. 53 - Of the following processes, which occurs last? a....Ch. 53 - Which of the following would qualify as a...Ch. 53 - Prob. 1ACh. 53 - In the Spemann experiment, when the dorsal lip is...Ch. 53 - Suppose that a burst of electromagnetic radiation...Ch. 53 - Prob. 4A
Ch. 53 - Drug or alcohol exposure during which of the...Ch. 53 - Axis formation in amniotic embryos could be...Ch. 53 - Prob. 1SCh. 53 - You look up from your studying to see your dog,...Ch. 53 - Why doesnt a woman menstruate while she is...Ch. 53 - Spemann and Mangold were able to demonstrate that...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A cytoplasmic determinant can control development at the early stages of development because....? Group of answer choices a. it is a universal activator of all genes b. it is present evenly throughout the cytoplasm c. it is activated by cell division d. it is controlled by genes present in the cytoplasm e. it is laid down in the egg cell by the motherarrow_forwardAs shown in Figure 13-26, the Sonic hedgehog gene is expressed in many places in a developing chicken. Is theidentical Sonic hedgehog protein expressed in each tissue? If so, how do the tissues develop into different structures? If not, how are different Sonic hedgehog proteinsproduced?arrow_forwardWhat are some master genes important in embryonic development? Discuss.arrow_forward
- Discuss the role of homeotic genes in development. Explain what happens to the phenotype of a fruit fly when a gain-of-function mutation in a homeotic gene causes the protein to be expressed in an abnormal region of the embryo. What are the consequences of a loss-of-function mutation in such a gene?arrow_forwardwhat are the main concern of using embryonic stem cellsarrow_forwardFor genes that control pathways of development, loss-of-function mutations are usually recessive whereas gainof-function mutations are usually dominant. Can you suggest a reason why?arrow_forward
- What experiments suggested that genes are not lost or permanently altered in development?arrow_forwardWhat are some master genes important in embryonic development?arrow_forwardI am confused about how stem cell transplants works. If you put a semi differentiated tadpole nucleus in a denucleated egg cell, it’ll develop into a fully formed tadpole, but if you put a fully differentiated tadpole nucleus, it won’t (because the genes have already been expressed in a way where the cytoplasmic determinants cannot operate to the fullest). Then how come in stem cell transplants, you use adult nucleuses that are already developed and transplant them into the denucleated egg cells?arrow_forward
- What piece of a transcript is utilized to localize the mRNA and why is this critical to development? a. 3'UTR; protein gradients have a large influence on gene expression of cells b. 5'UTR; protein gradients have a large influence on gene expression in cells c. the promoter; it has a large influence on protein production within a cell d. The TATA box; it has a large influence on protein production within a cellarrow_forwardWhich of the following best describes the concept of cell differentiation during the development of a multicellular organism? A. During development, all of the genes in the embryo's cells are expressed at first, but fewer and fewer are expressed as time proceeds. B. During development, different sets of genes are deleted from different cell types so that at the end of development, each cell has only the genes it needs. C. During development, different cells become specialized to have different phenotypes even though they all originated from the same cell. ..arrow_forwardWhat specific molecular factors determine the differentiation of embryonic stem cells into different cell types during development?arrow_forward
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