1 SEM ACC W/RAVEN CARDED
12th Edition
ISBN: 9781265486297
Author: Raven
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 52, Problem 2A
In the Spemann experiment, when the dorsal lip is transplanted, the recipient embryo then has a second source of molecules that
a. specifies ventral fate.
b. inhibits the molecules that specify ventral fate.
c. specifies dorsal fate.
d. inhibits the molecules that specify dorsal fate.
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Students have asked these similar questions
The expression of maternal-effect genes directly leads to
a. the establishment of body axes.
b. segmentation.
c. determination.
d. cell differentiation.
Signal transduction pathways are important mechanisms for cell-to-cell communication in multicellular organisms. How do the target cells typically respond when they receive signals from neighboring cells during very early stages of embryo development?
A. The target cells move to one of the poles to establish the anterior-posterior body axis.
B. The target cells undergo changes in gene expression, sending them down a specific developmental path.
C. The target cells stop dividing so the neighboring cells have time to get to the same stage of development.
D. The target cells activate a collection of miRNAs to accelerate transcription and cell division.
Which of the following statements relating to axis formation in chickens is FALSE?
a. Henson's node secretes proteins that antagonize BMPs.
b. The side of the epiblast facing the negative, basic albumin will become the ventral side of the embryo.
c. Cells of the posterior marginal zone secrete Nodal to initiate the primitive streak.
d. Water and sodium ions are transported from the albumin through the blastodisc cells and into the subgerminal space.
Chapter 52 Solutions
1 SEM ACC W/RAVEN CARDED
Ch. 52.1 - Describe the events involved in fertilization.Ch. 52.1 - Prob. 2LOCh. 52.2 - Prob. 1LOCh. 52.2 - Prob. 2LOCh. 52.2 - Prob. 3LOCh. 52.3 - Prob. 1LOCh. 52.3 - Compare gastrulation in different animals.Ch. 52.3 - Name the extraembryonic membranes in amniotes.Ch. 52.4 - Prob. 1LOCh. 52.4 - Prob. 2LO
Ch. 52.4 - Prob. 3LOCh. 52.5 - Prob. 1LOCh. 52.5 - Explain the function of the organizer.Ch. 52.5 - Distinguish between primary and secondary...Ch. 52.6 - Describe the major developmental events in the...Ch. 52.6 - Explain the role of the placenta.Ch. 52.6 - Prob. 3LOCh. 52 - Data analysis Two different genes have mutant...Ch. 52 - Prob. 1IQCh. 52 - Prob. 1UCh. 52 - Which of the following plays the greatest role in...Ch. 52 - Gastrulation is a critical event during...Ch. 52 - Gastrulation in a mammal would be most similar to...Ch. 52 - Prob. 5UCh. 52 - Of the following processes, which occurs last? a....Ch. 52 - Which of the following would qualify as a...Ch. 52 - Prob. 1ACh. 52 - In the Spemann experiment, when the dorsal lip is...Ch. 52 - Suppose that a burst of electromagnetic radiation...Ch. 52 - Prob. 4ACh. 52 - Drug or alcohol exposure during which of the...Ch. 52 - Axis formation in amniotic embryos could be...Ch. 52 - Prob. 1SCh. 52 - You look up from your studying to see your dog,...Ch. 52 - Why doesnt a woman menstruate while she is...Ch. 52 - Spemann and Mangold were able to demonstrate that...
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- The FOXP gene strongly affects what else, in addition to brain development? A. The stomach and intestines B. The pituitary and adrenal glands C. The jaw and throat D. Blood pressure and heart ratearrow_forwardIf cells from the presumptive neural ectoderm of a frog gastrula are transplanted onto the surface of a second gastrula where skin would normally develop, the transplanted cells will still develop into tissues of the nervous system. This experiment shows that the transplanted cells areA. differentiated.B. totipotent.C. discontinuous.D. determined.E. endodermal.arrow_forwardWhich of the following statements is TRUE? a. In mammals and chickens, the first cells to ingress through the primitive groove replace the hypoblast. b. In mammals and chickens, the first cells to ingress through the primitive groove become the hypoblast. c. In chickens the first cells through the primitive streak replace hypoblas, but in mammals the first cells to ingress through the primitive groove become the hypoblast. d. In mammals the first cells to ingress through the primitive groove replace the hypoblast, while in chickens the first cells to ingress become mesoderm.arrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY