Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 7, Problem 4RQ
Which event leads to a diploid cell in a life cycle?
a. meiosis
b. fertilization
c. alternation of generations
d. mutation
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If meiosis produce haploid cells, how is the diploid numberrestored for those organisms that spend most of their life cycle in the diploid state?
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Sexual reproduction does not produce genetically different offspring
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Which event leads to a diploid cell in a life cycle?a. meiosisb. fertilizationc. alternation of generationsd. mutation
Chapter 7 Solutions
Concepts of Biology
Ch. 7 - Figure 7.2 If a mutation occurs so that a fungus...Ch. 7 - What is a likely evolutionary advantage of sexual...Ch. 7 - Which type of life cycle has both a haploid and...Ch. 7 - Which event leads to a diploid cell in a life...Ch. 7 - Meiosis produces daughter cells. a. two haploid b....Ch. 7 - At which stage of meiosis are sister chromatids...Ch. 7 - The part of meiosis that is similar to mitosis...Ch. 7 - If a muscle cell of a typical organism has 32...Ch. 7 - The genotype XXY corresponds to: a. Klinefelter...Ch. 7 - Abnormalities in the number of X chromosomes tend...
Ch. 7 - Aneuploidies are deleterious for the individual...Ch. 7 - Explain the advantage that populations of sexually...Ch. 7 - Describe the two events that are common to all...Ch. 7 - Explain how the random alignment of homologous...Ch. 7 - In what ways is meiosis II similar to and...Ch. 7 - Individuals with trisomy 21 are more likely to...
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- Dogs have a diploid chromosome number of 78. How many chromosomes do their gametes have? a. 39 c. 156 b. 78 d. 234arrow_forwardWhen does synapsis between homologous chromosomes occur? A. prophase I of meiosis B. prophase II of meiosis C. prophase of mitosis D. metaphase of mitosisarrow_forwardWhen a germ cell undergoes meiosis, which event would MOST likely result in four aneuploid daughter cells? A. misalignment of the chromosomes during metaphase I B. misalignment of the chromosomes during anaphase I C. misalignment of the chromosomes during metaphase II D. misalignment of the chromosomes during anaphase IIarrow_forward
- When does DNA replication occur during meiosis? a. during telophase b. during prophase I c. during anaphase and telophase d. during interphase before meiosis I beginsarrow_forwardDuring meiosis I, which structures separate? A. Sister chromatids B. Homologous chromosomes C. Both A and B D. Neither A nor Barrow_forwardNumber 22arrow_forward
- In which phases in meiosis is variation of genetic makeup accomplished? a. Prophase I, Anaphase I and Anaphase II b. Prophase II, Anaphase I and Anaphase II c. Prophase I, Metaphase I and Anaphase II d. Prophase II, Metaphase I and Metaphase II If 6 cells undergoing celll division has 12 chromosomes, how many chromosome will there be in the daughter cells after mitosis and meiosis II respectively? a. 6 and 12 b. 12 and 6 c. 6 and 3 d. 6 and 6 In meiosis, the number of chromosomes of the mother cell compared to the resultant daughter cell's chromosome is A. doubled B. halved C. tripled D. the same Elongation of the cell undergoing the last phases of mitosis is due to A. movement of the chromosomes to the opposite poles B. increase in the volume of the cytoplasm that should be contained C. depolymerization of the spindle fibers connected to the kinetochore D. polymerization of the spindle fibers not connected to the kinetochorearrow_forwardWhich process is necessary to prevent the doubling of genome size during sexual reproduction? a. meiosis b. mitosis c. apoptosis d. metastasis e. contact inhibitionarrow_forwardCells begin to change their shape and function as the embryo develops in the uterus; what is the name of the process that is used to describe the process wherein "generic (stem)" cells begin to alter their shape and function? 49. A. Cell mitosis B. Cell differentiation C. Cell division D. Cell augmentationarrow_forward
- What defines a diploid cell? a.A cell with three sets of chromosomes b.A cell with one set of chromosomes c.A cell with four sets of chromosomes d.A cell with two sets of chromosomesarrow_forwardWhat defines a diploid cell? A. A cell with two sets of chromosomes B. A cell with four sets of chromosomes C. A cell with three sets of chromosomes D. A cell with one set of chromosomesarrow_forwardThe production of which structure in a flowering plant involves genetic recombination? A. haploid gametes B. haploid spores C. diploid gametes D. diploid sporesarrow_forward
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