Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 18, Problem 11RQ
What is the main difference between autopolyploid and allopolyploid?
- the number of chromosomes
- the functionality of the chromosomes
- the source of the extra chromosomes
- the number of mutations in the extra chromosomes
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In some insects the female have two x chromosomes, while the males have One x chromosomes and no y chromosome .if the normal deploid number in an insect of this type is 14 what would be the number of chromosomes in the body cells of males and of females?
Which of the following describes a Homologous Chromosome?
O Chromosomes that are exactly the same and duplicated during S Phase
O Chromosomes that are the same Chromosome but come from different parents
O Chromosomes that you find in the same cell
O Chromosomes you find bound together by a Centromere
What is the fundamental difference between mitosis and meiosis? Be sure to include the following:
types of cells produced by each process (haploid or diploid) (body cells or sex cells)
types of cells that undergo each process
stages involved in each process
number of times the DNA is replicated
number of divisions involved in each process
Chapter 18 Solutions
Biology 2e
Ch. 18 - Figure 18.14 Which is most likely to survive,...Ch. 18 - Figure 18.22 If two species eat a different diet...Ch. 18 - Figure 18.23 Which of the following statements is...Ch. 18 - Which scientific concept did Charles Darwin and...Ch. 18 - Which of the following situations will lead to...Ch. 18 - Which description is an example of a phenotype? A...Ch. 18 - Which situation is most likely an example of...Ch. 18 - Which situation would most likely lead to...Ch. 18 - What is the main difference between dispersal and...Ch. 18 - Which variable increases the likelihood of...
Ch. 18 - What is the main difference between autopolyploid...Ch. 18 - Which reproductive combination produces hybrids?...Ch. 18 - Which condition is the basis for a species to be...Ch. 18 - Which situation is not an example of a prezygotic...Ch. 18 - Which term is used to describe the continued...Ch. 18 - Which components of speciation would be least...Ch. 18 - If a person scatters a handful of garden pea plant...Ch. 18 - Why do scientists consider vestigial structures...Ch. 18 - How does the scientific meaning of “theory” differ...Ch. 18 - Explain why the statement that a monkey is more...Ch. 18 - Why do island chains provide ideal conditions for...Ch. 18 - Two species of fish had recently undergone...Ch. 18 - Why can polyploidy individuals lead to speciation...Ch. 18 - What do both rate of speciation models have in...Ch. 18 - Describe a situation where hybrid reproduction...
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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
- Which of the following best describes the kinetochore? the core of proteins that forms the metaphase plate in a dividing cell a structure composed of several proteins that associate with the centromere region of a chromosome and that can bind to spindle microtubules the ring of actin microfilaments that will cause the appearance of the cleavage furrow the centromere region of a metaphase chromosome at which the DNA can bind with spindle proteinsarrow_forwardWhich of the following processes leads to aneuploidy, the condition of having too many or too few copies of a particular chromosome? Select all that apply. Nondisjunction of chromosomes during mitosis Nondisjunction of chromosomes during meiosis Proper separation of chromosomes during mitosis Proper separation of chromosomes during meiosisarrow_forwardIn 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_forward
- Which of the following genetic changes would be passed from parent to child? A duplication of chromosome 21 during mitosis in a pancreas cell The addition of a chromosome in an egg cell A mutation in a skin cell caused by UV light A translocation in a nonhomologous pair of chromosomes in a liver cellarrow_forwardWhich of the following is characteristics of an acrocentric chromosome?1.centromere is closer to one end of the chromosome producing one long arm and one short arm 2. There is more than one centromere 3. Centromere is the center of the chromosome 4.centromere is at the very end of the chromosomearrow_forwardWhich of the following is a result of meiosis? all chromosome line up singly at the equator the cell goes through one nuclear division two identical daughter cells are formed the daughter cells are haploid and not identicalarrow_forward
- Polyploid organisms of a normally diploid species are often sterile because: tetraploids are not sterile some of the chromosomes cannot synapse during mitosis none of the chromosomes can synapse during meiosis all the homologous chromosomes attempt to synapse together during meiosisarrow_forwardWhich of the following correctly describes a homologous pair of chromosomes in prophase of meiosis I? a- Two replicated chromosomes, each of which is one double-stranded DNA molecule b- Four replicated chromosomes, each of which is one double-stranded DNA molecule c- Two replicated chromosomes, each of which is two double-stranded DNA molecules d- Four replicated chromosomes, each of which is two double-stranded DNA moleculesarrow_forwardWhat is the key difference between daughter cells resulting from mitosis and meiosis? In humans, the 4 daughter cells of meiosis contain how many chromosomes? A parent cell has 10 chromosomes. If one daughter cells after mitosis has 9 single chromosomes and the other has 9 single chromosomes and 1 double chromosome, when did the error occur?arrow_forward
- Which of the following differentiates meiosis from mitosis? mitosis is used for the repair of cells, whereas meiosis creates cells for sexual reproduction. In mitosis four identical daughter cells are produced, whereas two genetically different cells are produced in meiosis meiosis is a form of asexual division, whereas mitosis is a form of sexual division mitosis occurs in prokaryotic cells, whereas meiosis occurs in eukaryotic cellsarrow_forwardThe diploid chromosome number of an organisms is 8. How many of each of the following are present in each cell at the stage of mitosis and meiosis indicated?arrow_forwardHow many cells are required to produce 1000 cells in a complete mitotic and meiotic division? 250 mitotic and 250 meiotic divisions 500 mitotic and 250 meiotic divisions 999 mitotic divisions and 250 meiotic divisions 999 mitotic and 250 meiotic divisionsarrow_forward
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