Which of the following is the smallest structure?
a) muscle cell
b) muscle
c) myofibril
d) sarcomere
Answer: d) sarcomere
You might also like to view...
Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur may be considered
A. minor elements. B. major elements. C. neutral elements. D. acidic elements.
A different pattern of methylation in genes responsible for glucose and fatty acid metabolism is common in individuals _______________.
A. with cancer. B. conceived during famine C. exposed to chemicals in cigarette smoke D. with young parents E. of certain ethnic groups
Most of the regulation of gene expression in bacteria occurs at the ________ level
Fill in the blank(s) with correct word
Three scientists are using different forms of PCR for their research. Abby wants to determine changes in gene expression levels in a tissue, so she uses ________. Bob is trying to extract genetic information from a wooly mammoth fossil, so he uses ________. Chris needs to express a gene in bacteria that matches the form expressed in kidney cells, so she uses ________.
A. RT-PCR; quantitative RT-PCR; PCR B. RT-PCR; PCR; quantitative RT-PCR C. quantitative RT-PCR; PCR; RT-PCR D. quantitative RT-PCR; RT-PCR; PCR E. PCR; quantitative RT-PCR; RT-PCR