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Camponeschi

Camponeschi Genetics (targets 1a, 1b, 1c)

QuestionAnswer
cell cycle sequence of growth and division of cells
What are the three stages of the cell cycle? interphase, mitosis, cytokinesis
What occurs during interphase? growth of the cell (doubles in size and makes enough organelles for two cells), copying of DNA, makes structures that help divide cell
DNA Replication copying DNA so there are two exact sets of DNA - one set for each cell
What occurs during mitosis? The nucleus divides into 2 - one set of DNA is distributed to each new (daughter) cell
daughter cell the new cell made from cell division
what are the steps of mitosis (do not need to know names of steps, simply what occurs) step 1: DNA condenses (called chromosomes) nuclear membrane disappears step 2: chromosomes line up in center step 3: chromosomes start moving to oppposite ends of cell step:4 chromosomes finish moving to end of cell, cell start to pinch/cell plate
chromosome double strand of chromatin (dna)
What occurs during cytokinesis? cytoplasm divides - organelles are distributed to the two new cells
Do all cells go through a cell cycle? No - most cells do; however, some specific cells do not (nerve cells)
How long does the cell cycle take? between 2-22 hours - depends on cell type
Why do cells go through a cell cycle? To make new cells to replace old cells; to make more cells to heal wounds or respond to an infection, to grow.
What is the purpose of the cell cycle (cell division)? to make new cells for growing, healing, and replacing old cells.
Comparing sexual and asexual reproduction, which has only one parent? asexual reproduction
Comparing sexual and asexual reproduction, which has two parents? sexual reproduction
Comparing sexual and asexual reproduction, which makes offspring that are exactly the same as the parent? asexual reproduction
Comparing sexual and asexual reproduction, which makes offspring that are different from the parent? sexual reproduction
Comparing sexual and asexual reproduction, which makes offspring? both
Comparing sexual and asexual reproduction, which is usually seen in unicellular organisms? asexual reproduction
Comparing sexual and asexual reproduction, which is usually seen in multicellular organisms? sexual reproduction
What percentage of your chromosomes (your genes) come from your mother? 50% (half)
What percentage of your chromosomes (your genes) come from your father? 50% (half)
The cell that carries the chromosomes from your mother to you is called a(an) egg
The cell that carries the chromosomes from your father to you is called a(an) sperm
What is the purpose of meiosis? to produce sex cells (sperm and egg)
describe the steps of meiosis. the chromosomes copy, nuclear membrane disappears, chromosomes line up, split, new nuclear membrane, cytokinesis. then nuclear membrane disappears, chromosomes line up, split, new nuclear membrane, cytokinesis.
How are mitosis and meiosis similar? they both make new cells, have DNA replication, chromosomes line up and split, cytokinesis.
Compare the cells made for mitosis and meiosis. mitosis make body cells; meiosis make sex cells. mitosis makes exact copies of original cell; meiosis makes different cells.
Compare the process of mitosis and meiosis they both make new cells, have DNA replication, chromosomes line up and split, cytokinesis. meiosis have two cell divisions; mitosis has one.
Compare the number of cells made for mitosis and meiosis. Mitosis make two new cells; meiosis makes four new cells.
Compare the percentage of chromosomes in the cells made from mitosis and meiosis. mitosis makes cells with 100% chromosomes of the organism; meiosis makes cells with 50% of the chromosomes.
Created by: camponel on 2011-11-13



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