<LCPO> BIOLOGY
12th Edition
ISBN: 9781266216398
Author: Raven
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 52, Problem 4A
Summary Introduction
Introduction:
The pregnancy results after the fertilization of male and female gametes. During pregnancy, the female experiences the change of hormonal level. The sudden increase of progesterone and estrogen helps in maintaining the pregnancy and also helps in the development of the fetus inside the mother’s womb. During pregnancy, the other hormones like prostaglandin and oxytocin level also increases, which helps with the delivery of the fetus.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following statements regarding negative feedback is false?a. It helps regulate variables such as body temperature and bloodpressure.b. It is the mechanism by which birth occurs in mammals.c. It is a major feature of homeostatic control systems.d. It prevents homeostatic responses from overcompensating.e. It may occur at the organ, cellular, or molecular level.
The expression of maternal-effect genes directly leads to
a. the establishment of body axes.
b. segmentation.
c. determination.
d. cell differentiation.
Why is it easier to manipulate embryonic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell?
a.
As cells develop, signaling pathways can cause some genes to be turned off during development.
b.
Adult cells have different DNA content than do embryonic stem cells.
c.
Emybronic stem cells pose less of a threat for organ rejection as do an individual s own adult cells.
d.
It is no easier to manipulate emybronic stem cells to differentiate into various tissues than it is to manipulate a typical adult cell.
Chapter 52 Solutions
<LCPO> BIOLOGY
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...
Knowledge Booster
Learn more about
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
- Is this true or false? a. Fertilization is followed by a cleavage, a period of rapid cell division without growth. b. From the process above, this results in the production of a large number of cells called blastomeres. c. In sexual reproduction, the offspring have the same combinations of genes as their parents. d. Sequential hermaphroditism occurs when an animal is one sex during one phase of its lifecycle and the opposite sex during another phasearrow_forwardWhich of the following situations is the result of epistasis? a A mouse has black fur, black eyes, and black skin. b A mouse has white fur, pink eyes, and pink skin. c A mouse has white fur with black spots and black eyes. d A mouse has black fur with white spots and black eyes.arrow_forwardWhich of the following statements about iPS cells is correct? A. They are derived from embryonic stem cells. B. Transcription factors play a key role in their production. C. When implanted into a mouse blastocyst, they are not able to produce viable offspring. D. They have never been used in a human clinical trial.arrow_forward
- How might stress to a pregnant rat alter the sexual orientation of her male offspring? a. Stress increases synthesis of the neurotransmitter acetylcholine. b. Stress decreases synthesis of alpha-fetoprotein. c. Stress increases the release of endorphins in the hypothalamus. d. Stress decreases the release of corticosterone or cortisol from the adrenal glandsarrow_forwardUse the graphs to answer the question. Which answer describes a logical reason why LH and FSH were chosen for this study? A. These hormones regulate gametogenesis and sex hormone production, so they play a pivotal role in puberty. B. These hormones are only present in individuals undergoing puberty, so they provide a good indication of puberty. C. These hormones directly cause puberty related changes. D. These hormones are the only ones that fluctuate with puberty while other hormones are unchanged. Use the graph to answer the question. The graph indicates increases in both FSH and LH for males and females. However, male and female signs of puberty differ. Which of the following explains why? A. Hormone levels increase for both of them, but LH levels increase more for males and less for females. B. FSH and LH trigger higher testosterone production in males and higher estrogen production in females. C. FSH and LH promote a positive feedback…arrow_forwardWhich of the following statements regarding the formation of human twins is INCORRECT? a. Nearly all identical twins form before the 9th day following fertilization. b. Identical twins share an umbilical cord. c. Fraternal twins form after two eggs become fertilized. d. Identical twins form after two eggs become fertilized.arrow_forward
- Which of the following scenarios does NOT describe an event that leads to the conceptions of twins? Select one: A. two eggs are fertilized by two sperm cells, resulting in a fraternal twin. B. High levels of FSH stimulate the maturation of three ovums. C. Two eggs are fertilized by one sperm cell, resulting in a monozygotic twin. D. One egg is fertilized by one sperm but divides into two zygotes, resulting in two babies of the same gender.arrow_forwardVirtually all steps of embryological development depend on: a. Alterations in the genome b. Tumor Stem Cells c. Changes in programs of gene expression d. Telomerasearrow_forwardMatch the developmental genetics terms with their correct definition. a molecule that gives cells positional information according to its concentration. A. Morphogen B. the spatial arrangement of different regions of the body. body pattern C. the developmental phase during which germ layers become separated from each other. gastrulation D. one of three layers of cells that produce tissues and organs in either the inside, middle, or outside of the embryo. , germ layer how cells rearrange to adopt the three dimensional shape of an organ or tissue. E. the process by which cells adopt their final physiological state. F.arrow_forward
- answer botharrow_forwardObservation of the development of embryos in sea stars shows the mesoderm forming pouches bulging from the archenteron to form the coelom. From this observation, you can predict that A. the cleavage of the embryo is radial. B. the adult animal will have bilateral symmetry. C. the mouth forms from the first opening in the gastrula. D. the animal is diploblastic.arrow_forwardBirds that do not receive adequate nutrition during development sing less often and for shorter periods of time as adult birds. Which BEST describes the outcome of nutritional stress in these songbirds? a They are less likely to obtain good nesting sites. b They are less likely to find adequate food supplies. c They are less likely to attract mates and pass on their genes. d They are less likely to ward off predators.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY