8841255
Descrição
Quiz por Megan Webb, atualizado more than 1 year ago
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Criado por Megan Webb
aproximadamente 7 anos atrás
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Questão 1
Questão
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes an event that results from mitosis but NOT meiosis?
Responda
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Two stages of cell division
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Replication of cellular genetic material
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Daughter cells that are identical to the parent cell
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Four daughter cells that are produced from each parent cell
Questão 2
Questão
Which type of reproduction leads to increased genetic variation in a population?
Responda
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Parthenogenesis
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Asexual reproduction
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Sexual reproduction
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Vegetative reproduction
Questão 3
Questão
Which of the following best compares the processes of mitosis and meiosis?
Responda
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Mitosis involves one division cycle and results in diploid daughter cells, while meiosis consists of two division cycles and results in haploid gametes
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Mitosis involves one division cycle and results in haploid gametes, while meiosis consists of two division cycles and results in diploid daughter cells
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Mitosis involves two division cycles and results in diploid daughter cells, while meiosis consists of one division cycle and results in haploid gametes
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Mitosis involves two division cycles and results in haploid gametes, while meiosis consists of one division cycle and results in diploid daughter cells
Questão 4
Questão
Which of the following best explains why meiosis results in greater genetic diversity than mitosis?
Responda
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After meiosis, daughter cells are diploid and have twice as much genetic material, which can be divided in many more possible combinations
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After meiosis, haploid daughter cells are fertilized, which doubles the number of chromosomes and increases the number of possible genes
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During meiosis, chromosomes assort themselves independently of each other, which allows for more different possible combinations of chromosomes
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During meiosis, more daughter cells are produced, which increases the likelihood that fertilization will occur
Questão 5
Questão
Which of the following occurs during mitosis?
Responda
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The cell membrane pinches one cell into two
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The chromosomes of the patient cell are copied
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The parent cell takes in nutrients and doubles in size
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The nucleus of the parent cell divides into two nuclei
Questão 6
Questão
In a single celled organism, mitosis is used for:
Responda
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Development
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Reproduction
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Growth
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Repair
Questão 7
Questão
Multicellular organisms use mitosis for growth, development and:
Responda
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Apoptosis
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Repair
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Reproduction
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Interphase
Questão 8
Questão
Why is it important for the daughter cells to divide a second time in meiosis?
Responda
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The second division switches parts of matching chromatids to increase genetic variation
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The second division forms four identical cells to ensure that all offspring have the same traits
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The second division sorts chromosomes into cells that are the same as the parent cells
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The second division forms haploid cells that can combine with other haploid cells during fertilization
Questão 9
Questão
What happens to sister chromatids in meiosis II?
Responda
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They duplicate
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They separate
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They remain together
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They do not take part
Questão 10
Questão
Which of the following describes how the process of crossing over during meiosis leads to an increase in genetic diversity?
Responda
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During prophase I, DNA replication takes place and homologous chromosomes trade places with each other before lining up in preparation for metaphase
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During prophase I, DNA segments are exchanged between homologous chromosomes resulting in different combinations of alleles
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During prophase II, fragments of DNA break off of chromosomes and attach to the ends of other chromosomes, resulting in different gene sequences
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During prophase II, sister chromatids separate from each other, and as they travel to oppsite ends of the cell, DNA segments of nearby chromosomes are exchanged
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