Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 51, Problem 5TYU
Meroblastic cleavage is typical of embryos formed from __________ eggs, (a) moderately telolecithal (b) highly telolecithal (c) isolecithal (d) b and c (e) a, b, and c
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If an egg cell were treated with EDTA, a chemical that bindscalcium and magnesium ions,(A) the acrosomal reaction would be blocked.(B) the fusion of sperm and egg nuclei would be blocked.(C) the fast block to polyspermy would not occur.(D) the fertilization envelope would not form.
An infertile couple was advised to undergo In vitro fertilization by the doctor. Out of
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successful results?
(a) Zygote only
(b) Zygote or early embryo upto 8 blastomeres
(c) Embryos with more than 8 blastomeres
(d) Blastocyst Stage
Classify and diagram embryos on the basis of their: (a) yolk content, (b) cleavage types, (3) cleavage patterns. Give examples for each.
Egg Types and Cleavage
Yolk Content
Types of Cleavage
Pattern of Cleavage
Model Organism(s)
Oligolecithal/ isolecithal
Mesolecithal
Chapter 51 Solutions
Biology (MindTap Course List)
Ch. 51.1 - Prob. 1LOCh. 51.1 - Prob. 2LOCh. 51.1 - Prob. 1CCh. 51.1 - Prob. 2CCh. 51.2 - Prob. 3LOCh. 51.2 - Prob. 4LOCh. 51.2 - How do the mechanisms of fertilization ensure...Ch. 51.2 - Prob. 2CCh. 51.3 - Prob. 5LOCh. 51.3 - Contrast early development, including cleavage, in...
Ch. 51.3 - Prob. 1CCh. 51.3 - Prob. 2CCh. 51.3 - How do the amount and distribution of cytoplasm in...Ch. 51.4 - Identify the significance of gastrulation in the...Ch. 51.4 - Prob. 1CCh. 51.4 - How do the amount and distribution of yolk...Ch. 51.5 - Prob. 8LOCh. 51.5 - Prob. 9LOCh. 51.5 - Prob. 1CCh. 51.5 - Prob. 2CCh. 51.5 - Prob. 3CCh. 51.6 - Give the origins and functions of the chorion,...Ch. 51.6 - What are the roles of the chorion and amnion in...Ch. 51.6 - What are the functions of the allantois and yolk...Ch. 51.7 - Prob. 11LOCh. 51.7 - Prob. 12LOCh. 51.7 - Prob. 1CCh. 51.7 - How does the placenta form, and what is its...Ch. 51.7 - During which trimester does the cerebrum develop...Ch. 51.7 - Prob. 4CCh. 51 - The mechanism that leads directly to morphogenesis...Ch. 51 - Prob. 2TYUCh. 51 - Prob. 3TYUCh. 51 - Prob. 4TYUCh. 51 - Meroblastic cleavage is typical of embryos formed...Ch. 51 - Prob. 6TYUCh. 51 - Which of the following are mismatched? (a)...Ch. 51 - Prob. 8TYUCh. 51 - An unidentified substance (or substances) released...Ch. 51 - Which of the following consists of both fetal and...Ch. 51 - Prob. 11TYUCh. 51 - Prob. 12TYUCh. 51 - Prob. 13TYUCh. 51 - Prob. 14TYUCh. 51 - Prob. 15TYUCh. 51 - Prob. 16TYUCh. 51 - Prob. 17TYU
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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
- Match each date in column B (approximate time after conception) with a developmental event or stage in column A.Column A Column B(1) blastocyst (a) 38 weeks(2) implantation occurs (b) 15 days(3) first few somites appear (c) 4–7 days(4) flat embryo becomes cylindrical (d) about 21 days(5) embryo/fetus boundary (e) about 21–24 days(6) birth (f) 2nd of week 8(7) primitive streak appears (g) days 6–13arrow_forwardSomites are evidence of (a) a structure from ectoderm, (b) a structure from endoderm, (c) a structure from lateral plate mesoderm, (d) segmentation in the human body.arrow_forwardThe term morula is used for a solid cluster of cells generated by the cleavage of the zygote. This cluster is made up of (a) 4–8 cells, (b) 8–12 cells, (c) 12–16 cells, (d) 60–80 cells.arrow_forward
- . In humans, identical twins are possible because(A) extraembryonic cells interact with the zygote nucleus.(B) convergent extension occurs.(C) early blastomeres can form a complete embryo if isolated.(D) the gray crescent divides the dorsal-ventral axis into new cells.arrow_forwardIf gastrulation did not occur properly and one of the primarygerm layers wasn’t formed, would the embryo be able tosurvive? Why or why not?arrow_forwardEndodermal Derivatives of the Developing Chick Embryo (A) 33-hour Chick Embryo Transverse Sections (B) 48-hour Chick Embryo Transverse Sections (C) 72-hour Chick Embryo Transverse Sections QUESTIONS: 1. What is the fate of the postanal gut?arrow_forward
- The Embryonic stem cells can be derived from _______ which is developed by “invitro fertilization”.a) late embryo b) early embryo c) embryo d) zygotearrow_forwardThe cortical reaction of sea urchin eggs functionsdirectly in(A) the formation of a fertilization envelope.(B) the production of a fast block to polyspermy.(C) the generation of an electrical impulse bythe egg.(D) the fusion of egg and sperm nucleiarrow_forwardWhich of the following are derived from 'trophoblasts'? 1. epiblast 2. hypoblast 3. amnion 4. blastocyst wall 5. inner cell mass Group of answer choices (A) 1 and 2 (B) 1, 2, and 3 (C) 3 and 4 (D) 4 only (E) 1, 2, 3, and 5arrow_forward
- When it is 1.5 months old, an average embryo is the size of (a) a black bean, (b) an adult fist, (c) its mother’s nose, (d) the head of a common pin.arrow_forward12.Place the following events of the acrosomal reaction in the correct chronological order.(This is a multiple choice question choose the answer from the choices below) choose the best answer. Thank you! (1) The acrosome releases hydrolytic enzymes. (2) Sperm-binding proteins on the membrane bind the sperm. (3) Sperm nucleus enters the egg. (4) Sperm and egg plasma membranes fuse. (5) Sperm contacts the egg's jelly coat A.1,2,4,3,5 B.3,5,2,1,4 C.5,1,2,4,3arrow_forwardWhich of the following embryonic structures are segmented? (More than one is correct.) (a) intermediate mesoderm, (b) lateral plate, (c) endoderm, (d) myotomes.arrow_forward
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