#Question id: 11137
#I Life Science/ Life Sciences Group – I-V
The motor (somatic nervous) system can alter the activities of its targets, the skeletal muscle fibers, because ________.
#Question id: 1286
#SCPH05 I Biotechnology
Syndecans are cell-surface proteoglycans that:
a. bind to collagens.
b. bind to multi-adhesive matrix proteins.
c. anchor cells to the extracellular matrix.
#Question id: 3632
#SCPH01 Biochemistry
geneticist is working with a new bacteriophage called phage Y3 that infects E. coli. He has isolated eight mutant phages that fail to produce plaques when grown on E. coli strain K. To determine whether these mutations occur at the same functional gene, he simultaneously infects E. coli K cells with paired combinations of the mutants and looks to see whether plaques are formed. He obtains the following results. (A plussign means that plaques were formed on E. coli K; a minussign means that no plaques were formed on E. coli K.)
How many cistron belong to these mutation?
#Question id: 427
#SCPH01 Biochemistry
The degradation of which class of biochemicals does not significantly contribute to the release of energy to cells?
#Question id: 2632
#SCPH05 I Biotechnology
How would transcription of the E. coli trp operon be affected,
I. If Removing sequence 4;
II. Changing several nucleotides in sequence 3 so that it can base-pair with sequence 4 but not with sequence 2;