Textbook Question
True or false: The corpus luteum is retained upon implantation due to the presence of the hormone human chorionic gonadotropin (hCG).
Ch. 47 - Animal Reproduction and Development
Freeman8th EditionBiological ScienceISBN: 9780138276263
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Table of contents
- Ch. 1 - Biology: The Study of Life13
- Ch. 2 - Water and Carbon: The Chemical Basis of Life14
- Ch.3 - Protein Structure and Function10
- Ch.4 - Nucleic Acids and the RNA World10
- Ch. 5 - An Introduction to Carbohydrates10
- Ch. 6 - Lipids, Membranes, and the First Cells11
- Ch. 7 - Inside the Cell10
- Ch. 8 - Energy and Enzymes: An Introduction to Metabolism10
- Ch. 9 - Cellular Respiration and Fermentation11
- Ch. 10 - Photosynthesis12
- Ch. 11 - Cell-Cell Interactions12
- Ch. 12 - The Cell Cycle8
- Ch. 13 - Meiosis12
- Ch. 14 - Mendel and the Gene23
- Ch. 15 - DNA and the Gene: Synthesis and Repair15
- Ch. 16 - How Genes Work16
- Ch. 17 - Transcription, RNA Processing, and Translation16
- Ch. 18 - Control of Gene Expression in Bacteria16
- Ch. 19 - Control of Gene Expression in Eukaryotes12
- Ch. 20 - The Molecular Revolution: Biotechnology, Genomics, and New Frontiers15
- Ch. 21 - Genes, Development, and Evolution12
- Ch. 22 - Evolution by Natural Selection16
- Ch. 23 - Evolutionary Processes13
- Ch. 24 - Speciation15
- Ch. 25 - Phylogenies and the History of Life13
- Ch. 26 - Bacteria and Archaea15
- Ch. 27 - Diversification of Eukaryotes16
- Ch. 28 - Green Algae and Land Plants16
- Ch. 29 - Fungi18
- Ch. 30 - An Introduction to Animals9
- Ch. 31 - Protostome Animals15
- Ch. 32 - Deuterostome Animals17
- Ch. 33 - Viruses16
- Ch. 34 - Plant Form and Function16
- Ch. 35 - Water and Sugar Transport in Plants16
- Ch. 36 - Plant Nutrition13
- Ch. 37 - Plant Sensory Systems, Signals, and Responses16
- Ch. 38 - Flowering Plant Reproduction and Development16
- Ch. 39 - Animal Form and Function17
- Ch. 40 - Water and Electrolyte Balance in Animals16
- Ch. 41 - Animal Nutrition16
- Ch. 42 - Gas Exchange and Circulation16
- Ch. 43 - Animal Nervous Systems16
- Ch. 44 - Animal Sensory Systems16
- Ch. 45 - Animal Movement11
- Ch. 46 - Chemical Signals in Animals16
- Ch. 47 - Animal Reproduction and Development16
- Ch. 48 - The Immune System in Animals16
- Ch. 49 - An Introduction to Ecology15
- Ch. 50 - Behavioral Ecology16
- Ch. 51 - Population Ecology16
- Ch. 52 - Community Ecology20
- Ch. 53 - Ecosystems and Global Ecology17
- Ch. 54 - Biodiversity and Conservation Ecology18
Chapter 47, Problem 1
What term describes the mode of asexual reproduction in which offspring develop from unfertilized eggs?
a. Parthenogenesis
b. Budding
c. Regeneration
d. Fission
Verified step by step guidance1
Understand the concept of asexual reproduction: Asexual reproduction is a mode of reproduction that does not involve the fusion of gametes and results in offspring that are genetically identical to the parent.
Identify the term 'parthenogenesis': Parthenogenesis is a form of asexual reproduction where an organism develops from an unfertilized egg. This process occurs naturally in some plants, invertebrates, and vertebrates.
Differentiate between the options: Budding involves the growth of a new organism from a part of the parent, regeneration refers to the regrowth of lost parts, and fission is the division of a single organism into two or more separate entities.
Recognize that parthenogenesis is unique because it specifically involves the development of offspring from unfertilized eggs, without the need for fertilization.
Conclude that the correct term describing the mode of asexual reproduction where offspring develop from unfertilized eggs is 'parthenogenesis'.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Parthenogenesis
Parthenogenesis is a form of asexual reproduction where an organism develops from an unfertilized egg. This process allows for the generation of offspring without the need for fertilization by a male gamete, commonly seen in certain plants, invertebrates, and some vertebrates like reptiles and birds.
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Asexual Reproduction
Asexual reproduction is a mode of reproduction that does not involve the fusion of gametes, resulting in offspring that are genetically identical to the parent. It includes various methods such as parthenogenesis, budding, regeneration, and fission, each with distinct mechanisms and occurring in different organisms.
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Unfertilized Eggs
Unfertilized eggs are eggs that have not undergone fertilization by a sperm cell. In the context of parthenogenesis, these eggs can develop into a new organism without fertilization, bypassing the typical sexual reproduction process and leading to offspring that are clones of the parent.
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Related Practice
Textbook Question
Which of the following statements regarding animal development is/are correct? Select True or False for each statement.
T/FThe neural tube forms after organogenesis is complete
T/FThe blastocyst is formed during cleavage
T/FDuring cleavage, the zygote divides rapidly without growth, forming a mass of cells
T/FAnimals have two germ layers
Textbook Question
In sperm competition, what is 'second-male advantage'?
a. The observation that when females mate with two males, each male fertilizes the same number of eggs
b. The observation that when females mate with two males, the second male fertilizes most of the eggs
c. The observation that females routinely mate with at least two males before laying eggs or becoming pregnant
d. The observation that accessory fluids prevent matings by second males—for example, by forming copulatory plugs
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