Ch 8,9,10 bio – Flashcards
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HeLa cells allowed a foal identification of the causative agent of
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Polio
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Researchers use HeLa cell to
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Do all of these
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The cells line HeLa was isolated from a
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Human
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HeLa cells are
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Cancer
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Henrietta Lack died of
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Cervical cancer
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HeLa's cells were critical in
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The development of polio vaccines
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After meiosis, resulting daughter cells are likely to contain
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Half the number of chromosome than the parent cell carries
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Which of the following represents the complete stages of interphase
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G1,S,G2
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Which of the following would not proceed past G1
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Most nerve cells
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The event directly before the beginning of DNA replication is
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The G1 stage
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Meiosis is the basis for
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Sexual reproduction
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Meiosis produces
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Sperm and egg cells
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In mitosis
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The chromosome number stays the same
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Which of the following is NOT correct about the cell cycle
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The cell cycle always terminates at G2
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DNA is replicated during
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The S stage
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Which of the following events is (are) characteristic of the interphase
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DNA is synthesized
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During the S stage
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DNA is replicated
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In mitosis, if a parent cell has 12 chromosomes, each daughter cell will have how many chromosomes
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12
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Cells with two of each kind of chromosome are described by term
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Diploid
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The spindle apparatus is made of
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Microtubules
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Which of the following occurs in prophase
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Breakdown of nuclear envelope
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Chromosome are aligned at the middle of the cell during
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Metaphase
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In which of the following stages does each chromosome consist of two DNA molecules
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1, 3
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Sisters chromatids detach from one another and become visibly separate chromosome during
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Anaphase
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The chromosome are moving to opposite sides of the cell
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Anaphase
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In which phase of mitosis do chromosome arrive at opposite sides of the cell
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Telophase
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Nuclear membranes re-forms during
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Telophase
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In what phase of the cell cycle does a typical cell spend most if it's life
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Interphase
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Which of the following is the longest phase of the cell cycle
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Interphase
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If a cell was to stop dividing, in which part of the cell cycle would it stop
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G1
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Division of the cytoplasm in animal cells
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Is visible as a cleavage furrow created by microfilm ts in the cells midsection
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Which of the following organisms employs a cell plate in cell division
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ROSES
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Which of the following is NOT an event in cell division in animals
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A cell plate partition the cytoplasm
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An accumulation of cells that divide uncontrollably is know as
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Neoplasms
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Abnormal cell division that does not pose a threat to surrounding tissues are termed
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Benign
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The spread of cancer cells from one site to others in the body is known as
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Metastasis
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An oncogene is
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More than one of these
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Whicj of the following human viruses causes warts
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Papillomavirus
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Asexual reproduction
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Produces clones
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Asexual reproduced daughter cells are
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...
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Sexual reproduction
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Results in new combination of genetic traits
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Alternative or different fos of the same gene ate called
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Allies
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Which of these is a disadvantage of asexual reproduction
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Less genetic diversity in offspring
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Through meiosis,
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All of these
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Meiosis in a diploid organisms r Typically results in the production of
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Four haploid cells
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Which of the following is NOT true of human chromosome
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Human gamete end up with two of each type of 23 chromosome
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A chicken somatic cell carries 78 chromosome. A chicken sperm cell will contain how many chromosomes
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39
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Paired homologous chromosome are found at the center of the cell during
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Metaphase
