Pearson eText Genetic Analysis: An Integrated Approach -- Instant Access (Pearson+)
3rd Edition
ISBN: 9780135564172
Author: Mark Sanders, John Bowman
Publisher: PEARSON+
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Textbook Question
Chapter 1, Problem 4P
All life shares DNA as the hereditary material. From an evolutionary perspective, why do you think this is the case?
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A multicellular organism starts off as a single cell, which divides by mitosis to produce many cells. Therefore, for the most part, all the cells in a multicellular organism are genetically identical—they are clones—yet in time different groups of cells look different and function quite differently from one another.How can this be?
DNA is responsible for your phenotype, but to what extent? How much, if at all, do environmental factors play a role? Can you find examples (remember keep your sources academic)?
Is it possible for their to be a mutation where an individual has incomplete or missing sets of chromosomes? or Would that simply result in the loss of life? I would say an easier way to describe a genome is by calling it either a blueprint of DNA or referring it as one full set of genetic information.
Chapter 1 Solutions
Pearson eText Genetic Analysis: An Integrated Approach -- Instant Access (Pearson+)
Ch. 1 - 1. Genetics affects many aspects of our lives....Ch. 1 - 2. How do you think the determination that DNA is...Ch. 1 - 3. A commentator once described genetics as “the...Ch. 1 - All life shares DNA as the hereditary material....Ch. 1 - Define the terms allele, chromosome, and gene and...Ch. 1 - 6. Define the terms genotype and phenotype, and...Ch. 1 - 7. Define natural selection, and describe how...Ch. 1 - Describe the modern synthesis of evolution, and...Ch. 1 - What are the four processes of evolution? Briefly...Ch. 1 - Define each of the following terms: a....
Ch. 1 - 11. Compare and contrast the genome, the proteome,...Ch. 1 - With respect to transcription describe the...Ch. 1 - Plant agriculture and animal domestication...Ch. 1 - Briefly describe the contribution each of the...Ch. 1 - If thymine makes up 21% of the DNA nucleotides in...Ch. 1 - What reactive chemical groups are found at the 5...Ch. 1 - Identify two differences in chemical composition...Ch. 1 - What is the central dogma of molecular biology?...Ch. 1 - A portion of a polypeptide contains the amino...Ch. 1 - The following segment of DNA is the template...Ch. 1 - 23. Fill in the missing nucleotides (so there are...Ch. 1 - 24. Suppose a genotype for a protein-producing...Ch. 1 - Prob. 25PCh. 1 - 26. Four nucleic acid samples are analyzed to...Ch. 1 - 27. What is meant by the term homology? How is...Ch. 1 - 28. If one is constructing a phylogeny of reptiles...Ch. 1 - 29. Consider the following segment of...Ch. 1 - 30. Ethical and social issues have become a large...Ch. 1 - 31. In certain cases, genetic testing can identify...Ch. 1 - 32. What information presented in this chapter and...Ch. 1 - 33. It is common to study the biology and genetics...
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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
- First there was the RNA world, and now we have a DNA world. Why would natural selection favor the transition to a DNA-based world?arrow_forwardEven though they have several differences, a bacterium and a human cell will both contain DNA. With respect to evolution, what does this fact suggest?arrow_forwardCat DNA is much more similar to dog DNA than to tortoise DNA. Why? (a) Cats and dogs are both carnivores and take in similar nutrients. (b) Cats and dogs have lived together with humans for a long period of time, so they have grown more similar. (c) Cats and dogs have more offspring during their lifetime than tortoises have, so their DNA changes less rapidly. (d) Cats and dogs have a common ancestor that is more recent than the common ancestor of cats and tortoises.arrow_forward
- What is DNA and RNA? How are DNA and RNA different? Do you think there are any organisms on the planet that do not have DNA? If so, which ones?.arrow_forwardOur DNA is subject to mutations on a daily basis. Why do most mutations that occur in the genome of organisms escape detection and not elicit a deleterious effect? Why does the child of someone with cancer not necessarily develop cancer? Is it reasonable to state that mutations are essential to the evolutionary process?arrow_forwardIs the following statement true or false?Why? “The flow of genetic information in the cell is alwaysDNA -> RNA -> protein.”arrow_forward
- Why is DNA & not RNA is the genetic material in majority of organisms?arrow_forwardWhy do you think all organisms use nucleic acids for encoding genetic information? Why not use proteins or carbohydrates? What advantages might DNA have as the source of genetic information?arrow_forwardChimpanzees and gorillas are genetically similar, sharing more than 98 percent of their DNA. While they have many of the same body parts, the details of these body parts differ. between the two species. Chimpanzees and gorillas. have a difference of 2 percent in their DNA. sequences, but that difference represents more than 35 million base pairs that differ in the chromosomes of every cell. These base-pair changes account for the physical differences seen between the two species. One difference between the two species is the shape of their hands and feet. Figure 1 compares the hand and a foot of a chimpanzee and a gorilla. Much like a human hand, chimpanzee and gorilla hands have opposable thumbs. This adaptation is good for picking up small objects and eating with one hand. Chimpanzees have fingers that are much longer and narrower than gorillas' fingers and have thumbs that are slightly smaller and sit farther down on their palms than gorillas' thumbs do. As a result, chimpanzees'…arrow_forward
- Chimpanzees and gorillas are genetically similar, sharing more than 98 percent of their DNA. While they have many of the same body parts, the details of these body parts differ. between the two species. Chimpanzees and gorillas. have a difference of 2 percent in their DNA. sequences, but that difference represents more than 35 million base pairs that differ in the chromosomes of every cell. These base-pair changes account for the physical differences seen between the two species. One difference between the two species is the shape of their hands and feet. Much like a human hand, chimpanzee and gorilla hands have opposable thumbs. This adaptation is good for picking up small objects and eating with one hand. Chimpanzees have fingers that are much longer and narrower than gorillas' fingers and have thumbs that are slightly smaller and sit farther down on their palms than gorillas' thumbs do. As a result, chimpanzees' thumbs are not as fully opposable as those of gorillas. Gorillas have…arrow_forwardWhy does DNA make each person unique?arrow_forwardI want to genetically transform an entire organism. To accomplish this do you think it is easier to work with an organism composed of many cells, or composed of a single cell? Why?arrow_forward
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