Gen Combo Ll Biology; Connect W/learnsmart Labs Access Card
4th Edition
ISBN: 9781259853197
Author: Robert Brooker
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 19, Problem 4TY
Morphogens are
- a. molecules that disrupt normal development.
- b. molecules that convey positional information and promote changes in development.
- c. mutagenic agents that cause apoptosis.
- d. receptors that allow cells to adhere to the extracellular matrix.
- e. both a and c.
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Which 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.
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C. During development, different cells become specialized to have different phenotypes even though they all originated from the same cell.
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The following are various developmental phenomena relating to the concepts and principles in developmental biology.
A. Concept of apoptosis
B. Concept of prefomed guidelines
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D. Concept of capacity
E. Concept of fate
F. Concept of environmental influences
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J. Concept of guidelines
K. Concept of Gradient
L. Concept of differentiation
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Question #2.
Metamorphosis in frog. What concept?
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Which of the following correctly explains how gene expression can change in a differentiating cell in an animal embryo?A. DNA methylation triggered by apoptosis leads to suppression of some genes and expression of others.B. Presence of germ layers trigger hormonal release from endocrine glands, signaling to certain cells to express genes.C. Cell signals through plasmodesmata allow coordination of cellular activities and cell differentiation.D. Cues from the cytoplasm and from surrounding cells can induce changes in gene expression.
Chapter 19 Solutions
Gen Combo Ll Biology; Connect W/learnsmart Labs Access Card
Ch. 19.1 - 20.1 General Themes in Development Concept Check:...Ch. 19.1 - Prob. 1BCCh. 19.1 - Prob. 2CCCh. 19.1 - Prob. 3CCCh. 19.1 - Prob. 2BCCh. 19.1 - Prob. 4CCCh. 19.2 - Development in Animals I: Pattern Formation...Ch. 19.2 - Development in Animals I: Pattern Formation...Ch. 19.2 - Prob. 3CCCh. 19.2 - Prob. 4CC
Ch. 19.2 - Development in Animals I: Pattern Formation Core...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.3 - Development in Plants Concept Check: Where are...Ch. 19.3 - Prob. 2CCCh. 19 - The process whereby a cells morphology and...Ch. 19 - Prob. 2TYCh. 19 - Positional information is important in determining...Ch. 19 - Morphogens are a. molecules that disrupt normal...Ch. 19 - Prob. 5TYCh. 19 - Arrange the following phases of pattern formation...Ch. 19 - Prob. 7TYCh. 19 - Prob. 8TYCh. 19 - An embryonic stem cell that can give rise to any...Ch. 19 - Prob. 10TYCh. 19 - Prob. 1CQCh. 19 - The MyoD gene in mammals plays a role in muscle...Ch. 19 - Prob. 3CQCh. 19 - Prob. 1COQCh. 19 - Is it possible for a phenotypically normal female...
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