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Review for Quiz on 10-11-17 Wednesday 8th Grade
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Your quiz tomorrow will have matching with 10 of the vocabulary words, one incomplete dominant punnett square to solve, one complete dominant punnett square to solve, and a few questions.
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1. What does the Cell membrane do?-
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1. Cell membrane- surrounds the cell and controls materials that enter and exit the cell, found in both plant and animal cells.
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2. What is the Cell wall?
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2.The cell wall is in plants
for support and protection.
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3. What is the nucleus of a cell?
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3. Nucleus of a cell- Found in both plant and animal cells
3. Nucleus of a cell- Found in both plant and animal cells. This is where the DNA is found that is needed for reproduction and controlling the cell’s activities.
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3. Where is DNA found in a cell?
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3. DNA is found in the nucleus usually
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4. What it the chloroplast?
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4. The chlorplast has chlorophyll and is where photosynthesis is carried on.
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5. What is cytoplasm?
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5. Cytoplasm is the filler in a cell.
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6. What is the vacuole?
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6. The vacuole is for storage of food, waste or water.
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7. What is DNA?
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7. DNA- Deoxyribonucleic Acid, substance that makes up chromosomes and carries the codes for hereditary information.
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8. What is a gene?
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8. The gene is a location on a chromosome that codes for a specific trait.
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9. What is a chromosome?
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9.Chromosome- Composed of DNA and carries genes for hereditary information.
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10. What is sexual cell reproduction?
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10. Sexual reproduction- Cells have ½ of their parent cells and combine to produce offspring with a greater variation than asexual reproduction.
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11. Asexual reproduction-
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11. Asexual reproduction has one parent, no mixing of DNA and little variety produced in the offspring.
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12. What is budding?
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12. Budding- A type of asexual reproduction where a bud grows and then separates.
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13.What is a mutation?
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13. Mutation- A change in the DNA or genetic code of an organism.
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14. What is a zygote?
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14. A zygote is a fertilized egg cell, it is diploid.
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15. Define Dominant trait.
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15. Dominant trait- When a trait hides another trait.
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16. What is a recessive trait?
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116. Recessive trait- A trait that is carried but does not show.
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17. Explain incomplete dominance.
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17. Incomplete dominance- When traits are blended, no dominant or recessive traits.
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18. What is an allele?
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18. Allele- ½ Of the chromosome for a particular trait.
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19. What does homozygous mean?
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19. Homozygous is when both genes are the same such as WW or BB.
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20.Explain heterozygous.
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20. Heterozygous- When an organism or cell has genetic codes for two different traits.
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21. Define genotype.
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21.Genotype- The actual genes for a trait.
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22. What is phenotype?
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22. Phenotype- What shows up physically depending on the genotype.
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Don’t forget there will be one punnett square on Dominant/Recessive and one on Incomplete Dominance. Check your notes for this. See this week’s note sheets.
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23. If trees are a producer, where do trees get their energy from?
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23. Trees get their energy from the sun.
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24. The process of one plant community giving way to another is known as?
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24. Succession
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25. What is the difference between a consumer and a decomposer.
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25. A decomposer gets energy from breaking down dead things and a producer gets energy from the sun.
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26. What is the definition of an ecosystem?
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26. An ecosystem is all the living and non living things in an area.
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27. Why are plants called producers?
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27. Plants make their own food.
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30. You will need to identify the function of cell organelles such as cell membrane, cell wall, nucleus, vacuole and cytoplasm. Go to the website just mentioned for review.
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30. Look at your notes for the diagram from 9-21.
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31. If normal cells in a plant or animal have a full set of chromosomes, such as 60. How many will be in a sex cell such as sperm or pollen?
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31. ½ or 30 in this case
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32. You should be able to compare sexual and asexual reproduction.
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32. Sexual reproduction has 2 parents, mixes DNA thus looks different
32. Sexual reproduction has 2 parents, mixes DNA thus looks different. Asexual has one parent, no mixing of DNA thus no variety.
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Review Quiz ___ 1. Alleles a. Characteristics that can be passed only from one living thing to its young ___ 2. Genotype b. Alleles paired together for a specific trait are identical ___ 3. Phenotype c. When one allele masks thepresence of another, the allele is… ___ 4. Heterozygous d. An allele that is masked by another is… ___ 5. Dominant e. All the forms of a gene for any given trait are… ___ 6. Recessive f. Grid system used to determine possible genotypes of offspring ___ 7. Homozygous g. The study of heredity ___ 8. Punnett square h. The physical result of a gene combination ___ 9. Genetics i. The genetic make-up, or combination, of an organism ___ 10. Traits j. Alleles paired together that are different from each other
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Here are the answers for the quiz
1.E 2.I 3.H 4.J 5.C 6.D 7.B 8.F 9.G 10 A.
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The end, good luck amigos.
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