Unit 6: DNA Click to begin

During DNA replication, which of the following segments would be complimentary to the segment CCAATA A.) CCAATA B.) AACCGC C.) GGTTATD.) GGGGG L C.) correct answer F

A.) CAGUACCGUB.) TAGCACCTA C.) GUCAUGGCU D.) CAGTACCGA LF D.) correct answer During DNA replication, which of the following segments would be complimentary to the segment GTCATGGCT?

A.) phosphate groupB.) nitrogen base C.) sugarD.) amino acid LF D.) correct answer Nucleotides are the building blocks of DNA and RNA. Which of the following is not part of a nucleotide?

A.) transcriptionB.) replication C.) nondisjunctionD.) translation LF Before a cell goes through mitosis or meiosis, which process must be carried out by DNA in the nucleus? B.) correct answer

A.) AUG CGCB.) ATG CGC C.) CAT GCGD.) GCG TAC LF A DNA strand has the sequence TAC GCG. What is the complimentary strand of DNA? B.) correct answer

A.) TGACTAB.) UGACUA C.) ACTGATD.) UCTGUT LF If a portion of a DNA strand has the sequence ACTGAT, what will be the base sequence of the transcribed mRNA? B.) correct answer

A.) an exonB.) a codon C.) an anticodonD.) an intron LF What is the term for three nucleotides of mRNA that code for an amino acid? B.) correct answer

A.) key : lockB.) baker : pie C.) book : authorD.) truck : factory LF Which relationship is the most similar to the relationship below? tRNA : ribosome D.) correct answer

A.) ribosomeB.) nucleus C.) mitochondrion D.) chloroplast LF Where does messenger RNA take the “message” of DNA after transcription? A.) correct answer

A.) translationB.) inversion C.) transcription D.) replication LF What is the process of copying part of the DNA code into a complimentary sequence of RNA? C.) correct answer

A.) messenger RNAB.) transfer RNA C.) ribosomal RNA D.) mitochondrial RNA LF Which type of RNA is responsible for bringing amino acids to the ribosome for protein synthesis? B.) correct answer

A.) electrophoresisB.) sequencing C.) cloning D.) amniocentesis LF Which of the following DNA technologies would be most beneficial to the survival of an endangered species? C.) correct answer

A.) cytosine-guanine B.) adenine-guanine C.) uracil-adenine D.) adenine-thymine LF Which of the following base pairs would not be found in a cell? B.) correct answer

A.) blood typeB.) DNA sequence C.) genetic markers D.) karyotype LF After performing amniocentesis, which analysis is most often used to determine the chromosomal condition of a developing fetus? D.) correct answer

A.) Try-Ala-Lys-TyrB.) Met-Phe-Arg-Thr C.) Met-Lys-Arg-Thr D.) Tyr-Lys-Ala-Try LF Translation of the mRNA sequence AUG UUU CGC ACC would result in which of the following amino acid sequences? *use amino acid table in textbook* B.) correct answer

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