Cancer and Mitosis
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How does cell division differ between a normal cell and a cancerous cell? | Cancer cells do not follow any signals given by proto-oncogenes and will divide at any time.
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| What is the cause of cancer? (scientific) | Changes in DNA
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| During what part of a cells life does damage occur to cause cancer? | G1
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| What is an oncogene? What is their source? | Oncogenes are genes responsible for making cells divide. Their source is proto-oncogenes
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| What is a tumor suppressor gene? | A tumor suppressor gene stops cell division.
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| What is angiogenesis? | Angiogenesis is the process which tumors trick the body to provide them with nutrients and increase the blood levels.
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| What is metastasis? | Metastasis is the movement of the tumor cells throughout the body
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| What is apoptosis? | Apoptosis is cell suicide
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| What are some factors that can result in cancer? (Causes) | Chemicals (smoking), family history, radiation, UV Light
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| What happens when damage occurs to the genes that regulate the cell cycle? | Tumor suppressors stop working and cell division becomes uncontrollable.
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| What happens in the G1 phase? | Growth
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| What happens in the S phase? | Copies DNA
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| What happens in the G2 phase? | Prepares for Chromosome seperation
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| What do centrosomes create? | Centrosomes create spindle fibers
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| What do spindle fibers do? | Spindle fibers help guide the chromosomes to the poles of the cell
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| What happens to DNA in prophase? | DNA Condenses into chromosomes
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| What is DNA in loose strands called? | DNA in loose strands is called chromatin
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| Where do centrosomes move to in prophase? | Centrosomes move farther away from each other in prophase
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| Where are chromosomes in metaphase? | Center of the cell
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| Where are chromosomes in anaphase? | Chromosomes have just seperate at the centromere
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| Where are chromosomes in telophase? | Chromosomes are at the poles of the cell
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| What kind of organism uses binary fission? | Bacteria
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| A or S: 1 Organism | Asexual
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| A or S: No moving | Asexual
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| A or S: Less energy required | Asexual
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| A or S: Genetic Variation | Sexual
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| A or S: Lots of energy required | Sexual
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| A or S: 2 Organisms | Sexual
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| A or S: Adaptable | Sexual
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| A or S: Cannot be wiped out by single disease | Sexual
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| A or S: Several months | Sexual
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| A or S: Quick | Asexual
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| What type of organisms do asexual reproduction? | Plants and unicellular organisms
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| What type of organisms do sexual reproduction? | Mammals and fish
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| What does bacteria do before it divides? | Makes copy of its DNA
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| What is fragmentation? | An organism splits into pieces and each piece develops into a new organism
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| What organisms use fragmentations? | Worms, starfish
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| What is budding? | An organism forms a growth that develops into a new organism and then breaks off
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| What organisms use budding? | Jellyfish
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| What type of organisms uses sporulation? | Mushrooms
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| What causes sexual reproduction in fungi? | Adverse Conditions (bad)
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| What is an alteration in a gene called? | Mutation
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