is likely to be transcribed when: a. there is more glucose and less tryptophan i
ID: 97824 • Letter: I
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is likely to be transcribed when: a. there is more glucose and less tryptophan in the cell b. there is cyclic AMP and no tryptophan levels within the cell. c. CAMP is available and tryptophan is prevalent d. there is cyclic AMP and high tryptophan in the cell A microarray assay (DNA chip), complementary DNA has been made from mRNA of several patients with breast tumor biopsies. The researchers would be looking for: a. a pattern of non-fluorescence that indicates actively transcribed genes from cells at a given time b. some particular genes that are expressed from mRNA to cDNA to rRNA c. a paten shared among some or all of the samples that indicates gene expression differing from control groups d. all of the above e. none of the above A sequence base in the template strand of DNA is CACTGCGTCACC Amiddot The corresponding codon for the mRNA transcribed is: a GU GACGCAGU b. GCGUCGCUGCGG c. CACTGCGTCACC d. TUGCATCUTAUG A specific area of a chromosome the sequence of nucleotides below is present where the chain opens to form a replication fork: CCTAGGTAACCGTTA. An RNA primer is formed at the underlined C of the template. What is the primer replication sequence on DNA? a. TAAGGCAAT b. GTTCCATTA c. UTTUCATTU d. ATTGGCAAT e. AUUGGCAAU A possible sequence of nucleotides in the template strand of DNA that would code for the polypeptide sequence leu-pro-lys-ala would be: a. UUA-CCU-AAG-GCU b. AGA-AAG-CCA-UUG c. UAC-CCC-AAA-GUU d. CUG-CUC-CCG-UGC e. CUT-DOG-CAT-TAC What amino acid sequence will be generated, based on the following mRNA codon sequence? AUG-UAU-UCG-CAG-AGG-GAG: a. met-leu-ala-ile-tyr-val b. met-tyr-ser-glu-arg-glu c. met-phe-leu-ser-leu-ser d. met-tyr-ser-glu-cys-gly e. met-leu-ser-leu-tyr-leuExplanation / Answer
70) In patients with breast tumour biopsies, the researchers would be looking for a pattern shared among some or all of the samples that indicates gene expression differing from control groups(c).
71) The corresponding mRNA codon of the DNA sequence CACTGCGTCACC will be GUGACGCAGUGG(a)
74) The amino acid sequence generated from the mRNA codon sequence AUG-UAU-UCG-CAG-AGG-GAG is met-tyr-ser-glu-arg-glu (b).
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