Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Question
Chapter 50, Problem 4TYK
Summary Introduction
Introduction:
A zygote undergoes various cellular processes to develop and form the embryo. The early stages of development of zygote involve cleavage, gastrulation, and organogenesis. Gastrulation is the process where the blastomere cells undergo cellular rearrangements. During this stage of development, the embryo is termed as gastrula.
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Which of the following statements is false?
a. Cadherins, but not integrins play a role in gastrulation.
b. Gastrulation creates the primary germ layers
c. Gastrulation requires cells to change their gene expression.
d. Body axes are stabilized (made permanent) during gastrulation.
Which of the following statements about gastrulation is correct?
A. During gastrulation, the contents of cell nuclei begin to vary so that they can start to perform different fucntions.
B. During gastrulation, cells differentiate so that they can start to perform different functions.
C. The formation of the endoderm, mesoderm, and ectoderm occurs after gastrulation.
D. The formation of the endoderm, mesoderm, and ectoderm occurs before gastrulation.
A gastrulation does NOT
Select one:
A. Consist of endoderm, mesoderm, and ectoderm
B. Result in the formation of a third layer in the embryonic disc
C. Involve the formnation of germ layers
D. Include the differentiation of cells into tissues and organs
Chapter 50 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 50.1 - Prob. 1SBCh. 50.1 - Prob. 2SBCh. 50.2 - Prob. 1SBCh. 50.2 - Prob. 2SBCh. 50.2 - Prob. 3SBCh. 50.3 - Prob. 1SBCh. 50.3 - Prob. 2SBCh. 50.4 - Prob. 1SBCh. 50.4 - Prob. 2SBCh. 50.5 - Prob. 1SB
Ch. 50.5 - Prob. 2SBCh. 50.5 - Prob. 3SBCh. 50 - Prob. 1TYKCh. 50 - Prob. 2TYKCh. 50 - Prob. 3TYKCh. 50 - Prob. 4TYKCh. 50 - Prob. 5TYKCh. 50 - Prob. 6TYKCh. 50 - Prob. 7TYKCh. 50 - In the development of the female sex organs: a....Ch. 50 - In the embryonic development of the eye: a. the...Ch. 50 - Prob. 10TYKCh. 50 - Discuss Concepts Experimentally, it is possible to...Ch. 50 - Discuss Concepts Developmental biologist Lewis...Ch. 50 - Discuss Concepts Arguably, in sexually reproducing...Ch. 50 - Prob. 14TYKCh. 50 - Prob. 15TYKCh. 50 - Prob. 16TYKCh. 50 - Prob. 1ITDCh. 50 - Prob. 2ITDCh. 50 - Prob. 3ITDCh. 50 - Prob. 4ITD
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- Which of the following organisms would NOT undergo gastrulation? a. fungi and sponges b. worms and snails c. nematodes d. those with only one opening for food and waste (protostomes)arrow_forwardThe cells that give rise to gametesa. are derived from the mesoderm.b. often arise independently from the three germ layers.c. originate directly from the tissue that will develop into thegonads.d. are some of the last cells of the embryo to differentiate.e. are formed the same way in all animals.arrow_forwardThe embryos of complex multicellular animals must establish spatial coordinates if development is to proceed. An important reference coordinate for developing frogs is theA. location of the vegetal pole.B. location of the animal pole.C. point of sperm penetration.D. location where gastrulation begins.E. direction of the sun.arrow_forward
- Answer this question too. Thanksarrow_forwardDuring what process does the amnion envelop theembryo?a. embryonic foldingb. gastrulationc. implantationd. organogenesisarrow_forwardWhich of the following describes the importance of the formation of the morula in earlyhuman development?A. it is the process that initiates gastrulationB. it is the process that initiates the formation of the epiblast and hypoblastC. it is the process that initiates the formation of the trophoblast and inner cell massD. it is the process that initiates the formation of the trophoblast and epiblastarrow_forward
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