front 1 Bread mold can grow in a minimal medium without supplements (wild type) while certain mutated strains (mutants) can only grow in a minimal medium that is supplemented with specific intermediates found in the following metabolic pathway for arginine synthesis:
| back 1 enzyme 3. |
front 2 Bread mold can grow in a minimal medium without supplements (wild type) while certain mutated strains (mutants) can only grow in a minimal medium that is supplemented with specific intermediates found in the following metabolic pathway for arginine synthesis:
| back 2 The strain would have a mutation in the gene that encodes enzyme 1. |
front 3 The process that produces mRNA from DNA is called | back 3 transcription. |
front 4 The processes of transcription and translation are collectively known as | back 4 gene expression. |
front 5 ________ is directly produced from the transcription of a eukaryotic gene. | back 5 pre-mRNA |
front 6 ________ is to transcription as ________ are to translation? | back 6 RNA polymerase; ribosomes |
front 7 A(n) ______ is an organized unit of DNA sequences that enables a segment of DNA to be transcribed into RNA and ultimately results in the formation of a functional product. | back 7 gene |
front 8 Which of the following are products of nonstructural genes, and are therefore never translated? | back 8 transfer RNA and ribosomal RNA |
front 9 Transcription begins near a site in the DNA called the ______, while the terminator specifies the end of transcription. | back 9 promoter |
front 10 Which of the following regions of a structural gene contains the information that specifies an amino acid sequence? | back 10 transcribed region |
front 11 Which of the following statements about RNA polymerase in bacteria is INCORRECT? | back 11 It catalyzes the addition of nucleotides to the 5end of a growing RNA strand. |
front 12 If a DNA template strand has a sequence of 3 TACAATGTAGCC 5, then the RNA produced from it will be which sequence? | back 12 5'AUGUUACAUCGG3' |
front 13 Which of the following basic features of transcription is NOT shared by both prokaryotes and eukaryotes? | back 13 The complexity of protein components involved in transcription is similar for both prokaryotes and eukaryotes. |
front 14 Which of the following proteins is involved in synthesizing messenger RNA in eukaryotes? | back 14 RNA polymerase II |
front 15 Which protein influences the ability of RNA polymerase to transcribe genes? | back 15 transcription factors |
front 16 Intervening sequences that are transcribed, but not translated into protein are called | back 16 introns. |
front 17 Which of the following would occur if a cell's splicesomes were mutated so they no longer functioned normally? | back 17 Introns would remain in the mature mRNA |
front 18 Which of the following statements about RNA processing in eukaryotes is INCORRECT? | back 18 Introns are simply excised out of pre-mRNA to produce the mature mRNA |
front 19 ________ enables a single gene to encode two or more polypeptides that are different in their amino acid sequence. | back 19 Alternative splicing |
front 20 Which of the following molecule(s) exhibits self-splicing? | back 20 rRNA and tRNA |