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Science Test10/23/14
Need to Study for it. (Last Minute Studying)
Question | Answer |
---|---|
What is the difference between a somatic cell and a germ cell? (What are they and how many chromosomes do they have?) | Somatic Cell: A Body Cell (can only under go mitosis) 46 Chromosomes Germ Cell: Haploid eggs or sperm ( undergoes meiosis) 26 Chromosomes or half the amount of the chromosomes in a somatic cell. |
What is the order of: Chromosomes, genes, cells, nucleus, bases, and DNA? | Cell. Nucleus. Chromosomes. DNA. Genes. Bases. |
What are the chemicals that make up the sides of DNA? | 1. Deoxyribose (a sugar) 2. Phosphates (molecules) |
What are the names of the bases that make up the "rungs" of DNA and what ones match with each? | There is: Thymine, Guanine, Cytosine, Adenine T goes to A, while G goes to C. |
Where are chromosome found? | In the nucleus |
When and why does DNA replicate? | DNA replicates in interphase and it replicates because each daughter cell must have a complete set of DNA to survive and these daughter cells are made constantly. |
In what phase are most cells? | Interphase |
What is the shape of DNA? | A Double Helix |