ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
3rd Edition
ISBN: 9780135964422
Author: Urry
Publisher: PEARSON
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Chapter 10, Problem 9TYU
Summary Introduction
To explain:
In a short essay how chromosome behaviour during sexual reproduction inanimals ensures perpetuation of parental traits in offspring and, at the same time,
Introduction:
Chromosomes are the densely packed DNA molecule, found within the nucleus of a cell. During sexual reproduction the chromosome undergoes genetic recombination. During cell cycles the chromosome undergoes different phases to divide itself into two.
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explain how chromosome behaviour during sexual reproduction in animals ensures perpetuation of parental traits in offspring and, at the same time, gentetic variation among offspring.
Based on Standard NGSS MS-LS3-2: Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.
In reference to the attached image, can you create a model that shows how it is possible that the twins ended up with such different traits yet have the same parents? Keeping in mind that the twins are a set of fraternal twins.
Note:Required a cause-and-effect relationship between parents and offspring with the appropriate mechanism, and Diagram shows genetic recombination as well as inheritance
Chapter 10 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
Ch. 10.1 - MAKE CONNECTIONS Using what you know of gene...Ch. 10.1 - How does an asexually reproducing eukaryotic...Ch. 10.1 - WHAT IF? A horticulturalist breeds orchids, trying...Ch. 10.2 - Prob. 1CCCh. 10.2 - Prob. 2CCCh. 10.2 - Prob. 3CCCh. 10.2 - WHAT IF? A certain eukaryote lives as a...Ch. 10.3 - Prob. 1CCCh. 10.3 - WHAT IF? After the synaptonemal complex...Ch. 10.4 - Prob. 1CC
Ch. 10.4 - Prob. 2CCCh. 10 - A human cell containing 22 autosomes and a Y...Ch. 10 - Homologous chromosomes move toward opposite poles...Ch. 10 - If the DNA content of a diploid cell in the G1...Ch. 10 - Prob. 4TYUCh. 10 - Prob. 5TYUCh. 10 - Prob. 6TYUCh. 10 - Prob. 7TYUCh. 10 - Prob. 8TYUCh. 10 - Prob. 9TYUCh. 10 - Prob. 10TYU
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- Based on Standard NGSS MS-LS3-2: Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation. In reference to the attached image, can you create a model that shows how it is possible that the twins ended up with such different traits yet have the same parents? Keeping in mind that the twins are a set of fraternal twins.arrow_forward. A mature female wolf, with 78 diploid chromosomes in each somatic cell, produces haploid oocytes (egg cells) containing how many chromosomes per cell? 1 sex-determining chromosome (Y) and 38 autosomes 2 sex-determining chromosomes (XX) and 76 autosomes 1 sex-determining chromosome (X) and 39 autosomes 2 sex-determining chromosomes (XY) and 76 autosomes 1 sex-determining chromosome (X) and 38 autosomesarrow_forward| The Role of Meiosis Key Idea: There are two types of cell division in eukaryotes, mitosis and meiosis, but only meiosis produces cells that are genetically different to the parent cell. New cells are formed when existing cells divide. There are two forms of cell division in eukaryotes, mitosis and meiosis. Mitosis produces two identical daughter cells from a parent cell. Meiosis is a special type of cell division, and produces sex cells (gametes or spores) for sexual reproduction. In sexual reproduction, sex cells from two parents combine to form an individual that is genetically different to its parents. The sex cells in humans, called eggs and sperm, are produced by meiosis. Events occurring during meiosis creates gametes with unique combinations of gene variants and so creates genetic variability. Sexual reproduction rearranges and reshuffles the genetic material into new combinations. This is why family members may look similar, but they'll never be identical (except for…arrow_forward
- * b. Briefly explain how the use of this molecule (CA1P) disrupts both stages of photosynthesis while the Rubisco enzyme is associated with only one stage. Codule 3: The principles of heredity 1. Let's take the example of the gray kangaroo (Macropus fuliginosus) whose ploidy is 8 and the sexual determinism of this species is carried out according to the XY mode. From a male kangaroo: a) Draw the karyotype of this individual, obtained by stopping division at metaphase. Your drawing should include: a. All maternal and paternal chromosomes involved (different colors) b. An example of autosome and heterochromosome c. An example of homologous chromosome, sister chromatid and centromere. d. The total number of chromosomes in a metaphase kangaroo cell. e. A sentence to explain the difference between the terms gene and allele that might apply to this species. Page 3/4 Sh Q + 9 CA 9 0 11:57 M DELLarrow_forwardAsaparrow_forwardHow does the sexual life cycle increase the genetic variation in a species? By increasing gene stability By allowing fertilization By allowing crossing over By conserving chromosomal gene order By decreasing mutation frequencyarrow_forward
- In which stage(s) of the cell cycle, mitosis or meiosis do each of these processes occur (multiple stages apply to some) Crossing-over: Chromosome supercoiling: Separation of sister chromatids: DNA synthesis: Chromosome reduction from 2N to N: 4. A previously undiscovered single celled organism was found living at a great depth on the ocean floor. Its nucleus contains only a single, linear chromosome consisting of 7x10^6 nucleotide pairs of DNA coalesced with three types of histone-like proteins. The analysis of individual nucleosomes revealed that each unit contained one copy of each protein and that the short linker DNA had no protein bound to it If the entire chromosome consists of nucleosomes (discounting any linker DNA), how many are there and how many total proteins are needed to form them?arrow_forwardIn order to sexually reproduce, multicellular organisms utilize a process called ______. The type of daughter cells produced by meiosis - sex cells are called ______. Eggs and sperm contain only one copy of each chromosome, so they are _____. A cell that undergoes meiosis produces ______ genetically unique daughter cells. Word Bank: • Mitosis • Meiosis • Gametes • Somatic Cells • Haploid • Diploid • 2 • 4arrow_forward10:59 lI LTE Done 13 of 17 The first gnathostomes evolved about 200 million years ago. This statement is (T/F). • If true, enter x in the blanks below. • If false, then how would you change the sentence to make it correct? You can change two words at most. Changes that just reverse the meaning (e.g. changing "is" to "isn't" or "all" to "none") will not earn credit. I would change the word(s) to the word(s) to make the sentence correct. !!!arrow_forward
- In which behaviour of chromosomes do mitosis and meiosis differ from each other? In meiosis, homologous chromosomes lie in pairs but don't cross over; whereas, in mitosis, chromosomes remain separate and undergo crossing overr. In meiosis, homologous chromosomes don’t lie in pairs and don't undergo crossing over; whereas, in mitosis, chromosomes lie in pairs and get crossed over. In mitosis, chromosomes, as a whole, move towards the opposite poles; whereas, in meiosis I, chromatids move towards the opposite poles. In meiosis, homologous chromosomes lie in pairs, and form chiasmata; whereas, in mitosis homologous chromosomes dont undergo synapsis or crossing over.arrow_forwardInclude stages of reproduction in roaches - starting with the egg and sperm to zygote then to young offspring to adult( be sure to include the accurate number of chromosome)arrow_forwardNow that you've learned about mitotic and meiotic cell division, you understand that the process of mitosis results in cells that are identical to the parent cell whereas in meiosis, the daughter cells that are produced are genetically different from the parent cell. Meiosis introduces variation into populations of sexually reproducing organisms while mitosis produces cells for growth and cell specialization. In this post you will demonstrate understanding of how meiosis contributes to genetic variability and why this variability is important. How would children look if humans would reproduce through mitosis instead of using meiosis? Would there be any pitfalls in a population of humans if mitosis were the primary method for reproduction? Please remember to add a question to engage your classmates in the discussion.arrow_forward
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