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Numbered Heads Review Q’s

Numbered Heads Review Q’s. With answers on the next slides. Review Questions: __________________________________________________ Which of the following do you think will contain DNA? Explain your reasoning.

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Numbered Heads Review Q’s

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  1. Numbered Heads Review Q’s With answers on the next slides

  2. Review Questions: • __________________________________________________ • Which of the following do you think will contain DNA? Explain your reasoning. • bananas __ concrete __ fossils __ meat __ metal __ spinach __ strawberries __ fire__ • 2. What does DNA stand for? • 3. Where do you find DNA? • 4. What are the 4 nucleotide bases found in DNA?

  3. answers • __________________________________________________ • Which of the following do you think will contain DNA? Explain your reasoning. • bananas _x_ concrete __ fossils _x_ meat _x_ metal __ spinach _x_ strawberries _x_ fire__ • Anything that is or was alive has cells and therefore has DNA. Not all fossils have DNA- footprints do not because they don’t have cells, they are just indentations. However, amber and bones and fur can have cells. • 2. What does DNA stand for? deoxyribonucleic acid • 3. Where do you find DNA? In the nucleus of the cell • 4. What are the 4 nucleotide bases found in DNA? A, T, C, G

  4. Decoding DNA Which molecule is single stranded- DNA or RNA? Which molecule uses T’s to make the rungs- DNA or RNA? What step in decoding does not use base pair rules but keeps the nucleotides the same [except for T’s]? Which molecule leaves the nucleus- DNA or RNA? What is the message the RNA takes from the nucleus to the cytoplasm of a cell? Why does RNA have to leave the nucleus and go to the cytoplasm? How many nucleotide bases make a codon? Are codons made from grouping DNA or RNA?

  5. ANSWERS Which molecule is single stranded- DNA or RNA? Which molecule uses T’s to make the rungs- DNA or RNA? What step in decoding does not use base pair rules but keeps the nucleotides the same [except for T’s]? Step 2, reading the DNA into RNA Which molecule leaves the nucleus- DNA or RNA? Because it’s smaller What is the message the RNA takes from the nucleus to the cytoplasm of a cell? The blueprint for how to make proteins Why does RNA have to leave the nucleus and go to the cytoplasm? Because DNA is too big to leave nucleus and the protein factory is in the cytoplasm How many nucleotide bases make a codon? 3 Are codons made from grouping DNA or RNA? The protein wheel only has U’s (no T’s)

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