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GRCC EXAM 3 REVIEW BIOLOGY 151 QUESTIONS & ANSWERS RATED 100% CORRECT!!
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GRCC EXAM 3 REVIEW BIOLOGY 151 QUESTIONS & ANSWERS RATED 100% CORRECT!!
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GRCC EXAM 3 REVIEWBIOLOGY 151
QUESTIONS &
ANSWERS RATED
100% CORRECT!!
GRCC
Evatee 8/27/24 GRCC BIOLOGY 151
,GRCC EXAM 3 REVIEW BIOLOGY 151
QUESTIONS & ANSWERS RATED 100%
CORRECT!!
What is interphase? Answer - The period in which the cell cycle when the cell
is not dividing. Cellular metabolic activity is high, chromosomes and organelles
are duplicated, and cell size may increase. Accounts for about 90% of the cell
cycle.
What is G0? Answer - A non-dividing state occupied by cells that have left the
cell cycle, sometimes reversibility.
What is G1? Answer - The first gap, or growth phase, of the cell cycle,
consisting of the portion of interphase before DNA synthesis begins.
What is S-Phase? Answer - The synthesis phase of the cell cycle, the portion of
interphase during which DNA is replicated.
What is G2? Answer - The second gap, or growth phase, of the cell cycle,
consisting of the portion of interphase after DNA synthesis occurs.
What is Mitosis? Answer - A process of nuclear division in eukaryotic cells
conventionally divided into five stages: prophase, metaphase, anaphase, and
telophase. Conserves chromosome number by allocating replicated
chromosomes equally to each of the daughter nuclei.
, What is occurring overall in mitosis? Answer - The cycle that eukaryotic cells
go through in order to divide. During mitosis, a cell duplicates its DNA and
divides into two genetically identical cells.
What is prophase? Answer - The first stage of mitosis, in which the chromatin
condenses into discrete chromosomes visible with a light microscope, the
mitotic spindle begins to form, and the nucleolus disappears but the nucleus
remains intact.
What is Metaphase? Answer - The third stage of mitosis, in which the spindle
is complete and the chromosomes, attached to microtubules at their
kinetochores, are all aligned at the plate.
What is Anaphase? Answer - The forth stage of mitosis, in which the
chromatids of each chromosomes have separated and the daughter
chromosomes are moving to the poles of the cell.
What is Telophase? Answer - The fifth and final stage of mitosis, in which
daughter nuclei are forming and cytokinesis has typically begun.
What is cytokinesis? Answer - The division of the cytoplasm to form two
separate daughter cells immediately after mitosis, meiosis I, or meiosis II.
What is cytokinesis in plant cells? Answer - Cannot proceed with a cleavage
furrow.
What is cytokinesis in animal cells? Answer - A contractile ring is a ring of actin
filaments below the cell membrane that constricts the middle of a dividing cell
to complete cell division.
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