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1. In the diagram above label each of the following: SUGAR PHOSPHATE NITROGEN BASE NUCLEOTIDE 2. The shape of DNA is known as a ________________ __________________, it looks like a twisted ladder. 3. How does DNA create traits in organisms? (Use as many of these words as you can in your answer.) gene unzip mRNA code uracil thymine transcription nucleus tRNA translate amino acid protein ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ Name _____________________________ Biology Date ___________________ Genetics Basics Match the word with the definition or clue. 1. gene _____ a. process of transferring DNA code to mRNA 2. phenotype _____ b. adenine, thymine, guanine, uracil, cytosine 3. nucleotides _____ c. section of DNA responsible for a trait 4. nitrogen bases _____ d. process that must occur before cells divide 5. transcription _____ e. the alleles that code for a certain trait 6. translation _____ f. the way a gene is expressed; what we see; ex. curly hair 7. replication _____ g. building blocks of DNA and RNA 8. genotype _____ h. process in which tRNA works with ribosomes to produce a sequence of amino acids. Decide whether each phrase belongs with DNA or RNA, write it on the line. type of nucleic acid contains ribose double stranded contains deoxyribose single stranded made of nucleotides contains thymine contains uracil important in producing proteins DNA Both DNA and RNA RNA
