Biology 30 - Mitosis And Meiosis
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What are the stages of the cell cycle of mitosis? - ANSWERInterphase, Mitosis, and
Cytokinesis.
What processes are in interphase of mitosis? - ANSWERGrowth phase one (G1),
Synthesis (S), and Growth phase 2 (G2).
What happens in growth phase one of mitosis? - ANSWER1) Cell grows.
2) Carries out metabolic functions.
What happens in synthesis of mitosis? - ANSWERDNA replication (synthesis of DNA).
Sister chromatids come together.
What happens in growth phase two of mitosis? - ANSWER1) Cell grows.
2) prepares for mitosis.
3) Making of proteins.
What happens in mitosis? - ANSWERThe division of genetic material and the contents
of the nucleus into two complete sets. Prophase, Metaphase, Anaphase, Telophase
(cytokinesis).
What happens in cytokinesis in mitosis? - ANSWERThe division of the cytoplasm and
the organelles into two separate cells. Occurs during telophase.
What is the definition of mitosis? - ANSWERProcess of cell division in somatic cells
(any cell other than sperm or ovum).
What does mitosis result in ? - ANSWERConservation of diploid chromosome number.
What is a diploid cell ? - ANSWERCell containing two sets of chromosomes, one set is
inherited from each parent (46 total).
What is a haploid cell? - ANSWERCell containing one set of chromosomes (23 total).
What is chromatin? - ANSWERUn-coiled/ condensed chromosomes.
When are chromosomes considered chromatin? - ANSWERInterphase.
What is a centromere? - ANSWERCentralized region that joins the sister chromatids
together.
, What is a gene? - ANSWERThe single unit of inheritance, found at particular loci
(address) on chromosome.
What is a chromatid? - ANSWEREither of the two cells daughter stands of a replicated
chromosome that are joined by a single centromere and separate during cell division to
become individual chromosomes.
What happens in prophase of mitosis? - ANSWERChromosomes condense and
become visible. Nuclear membrane disappears. Nucleolus disappears.
What happens in metaphase of mitosis? - ANSWERChromosomes line up single file at
the equatorial plate.
What happens in Anaphase of mitosis? - ANSWERSister chromatids separate and
move to opposite poles.
What happens in Telophase of mitosis? - ANSWERNuclear membrane reforms.
What happens in Cytokinesis of mitosis? - ANSWERDivision of the cytoplasm into 2
cells. Occurs during telophase.
What is cancer? - ANSWERRapid, uncontrolled growth and division of cells (by mitosis).
These excessively dividing cells can invade other tissues (metastasize).
What is meiosis? - ANSWERThe process of cell division in sex cells (gametes);
reduction division.
What happens in the production of gametes? - ANSWERChromosomes number is
reduced by half. Four non-identical haploid cells are produced. 2 division events
(meiosis I and meiosis II). Crossing over (prophase I) and independent assortment
(metaphase I) are two events that lead to increase genetic variability.
What happens in interphase of meiosis? - ANSWERThe chromosomes replicate. It is
similar to chromosome replication of mitosis. Two identical sister chromatid are held
together by a centromere.
What happens in prophase 1? - ANSWERContents of the nucleus visible - DNA strands
shorten and thicken chromatin -> chromosomes.
Centrioles separate and move to opposite poles.
Spindle fibres start to appear.
Chromosomes pair with corresponding homologue (SYNAPSIS).
Crossing over occurs.
CORRECT 100%
What are the stages of the cell cycle of mitosis? - ANSWERInterphase, Mitosis, and
Cytokinesis.
What processes are in interphase of mitosis? - ANSWERGrowth phase one (G1),
Synthesis (S), and Growth phase 2 (G2).
What happens in growth phase one of mitosis? - ANSWER1) Cell grows.
2) Carries out metabolic functions.
What happens in synthesis of mitosis? - ANSWERDNA replication (synthesis of DNA).
Sister chromatids come together.
What happens in growth phase two of mitosis? - ANSWER1) Cell grows.
2) prepares for mitosis.
3) Making of proteins.
What happens in mitosis? - ANSWERThe division of genetic material and the contents
of the nucleus into two complete sets. Prophase, Metaphase, Anaphase, Telophase
(cytokinesis).
What happens in cytokinesis in mitosis? - ANSWERThe division of the cytoplasm and
the organelles into two separate cells. Occurs during telophase.
What is the definition of mitosis? - ANSWERProcess of cell division in somatic cells
(any cell other than sperm or ovum).
What does mitosis result in ? - ANSWERConservation of diploid chromosome number.
What is a diploid cell ? - ANSWERCell containing two sets of chromosomes, one set is
inherited from each parent (46 total).
What is a haploid cell? - ANSWERCell containing one set of chromosomes (23 total).
What is chromatin? - ANSWERUn-coiled/ condensed chromosomes.
When are chromosomes considered chromatin? - ANSWERInterphase.
What is a centromere? - ANSWERCentralized region that joins the sister chromatids
together.
, What is a gene? - ANSWERThe single unit of inheritance, found at particular loci
(address) on chromosome.
What is a chromatid? - ANSWEREither of the two cells daughter stands of a replicated
chromosome that are joined by a single centromere and separate during cell division to
become individual chromosomes.
What happens in prophase of mitosis? - ANSWERChromosomes condense and
become visible. Nuclear membrane disappears. Nucleolus disappears.
What happens in metaphase of mitosis? - ANSWERChromosomes line up single file at
the equatorial plate.
What happens in Anaphase of mitosis? - ANSWERSister chromatids separate and
move to opposite poles.
What happens in Telophase of mitosis? - ANSWERNuclear membrane reforms.
What happens in Cytokinesis of mitosis? - ANSWERDivision of the cytoplasm into 2
cells. Occurs during telophase.
What is cancer? - ANSWERRapid, uncontrolled growth and division of cells (by mitosis).
These excessively dividing cells can invade other tissues (metastasize).
What is meiosis? - ANSWERThe process of cell division in sex cells (gametes);
reduction division.
What happens in the production of gametes? - ANSWERChromosomes number is
reduced by half. Four non-identical haploid cells are produced. 2 division events
(meiosis I and meiosis II). Crossing over (prophase I) and independent assortment
(metaphase I) are two events that lead to increase genetic variability.
What happens in interphase of meiosis? - ANSWERThe chromosomes replicate. It is
similar to chromosome replication of mitosis. Two identical sister chromatid are held
together by a centromere.
What happens in prophase 1? - ANSWERContents of the nucleus visible - DNA strands
shorten and thicken chromatin -> chromosomes.
Centrioles separate and move to opposite poles.
Spindle fibres start to appear.
Chromosomes pair with corresponding homologue (SYNAPSIS).
Crossing over occurs.
