DNA – The Double Helix – Flashcards
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Why is the nucleus called the control center of the cell?
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The nucleus controls all of the activity inside of it
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What is a Gene?
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A segment of DNA that codes for a particular part of it
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Where in the cell are chromosomes located?
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Structural units of the cells
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DNA can be found in what organelles?
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Mitocomblas, Chloroplasts
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What two scientists established the Structure of DNA?
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James Watson, Francis crick
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Replication is called "Semi-conservative" because half of the original strand is ___________
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saved
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What are the sides of the DNA ladder made of?
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Sugar, Phosphate
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What are the 4 bases that make up the rungs of the DNA ladder
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Guannine, thymene, cytocene, Adimine
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What sugar is found in DNA? In RNA?
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Deoxrybose/Ribose
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How do the bases bond together? A bonds with_____ / G bonds with ________
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T / C
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WHat three parts make up a single nucleotide?
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Sugar Phosphate, and one of the 4 bases
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Why is RNA necessary to act as a messenger?
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RNA can fit though nuclear pores while DNA cant.
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Proteins are made where in the cell?
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In the Ribosomes
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How is RNA different from DNA? (3 things)
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RNA only has 1 strand / Uracil instead of thymine / Sugar ribose instead of deoxyribose
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The process of copying DNA is called...
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Replication
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What is the shape of DNA?
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Double Helix
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How do some cells become different cells?
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The cell can turn off certain genes and become something different
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Why is DNA called the "Blueprint of Life?"
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DNA contains all the information to make new life
