Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What will be an ideal response?
This question asked you to apply your knowledge about phosphorylation of a protein. If you got
the correct answer, great job! If you got an incorrect answer, where did the process break down? Did you
think that the serine/threonine phosphorylation sites were a substrate for a tyrosine kinase? Did you think
that a phosphatase adds a phosphate to a protein?
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Match the structures with their appropriate functions:
A. Roots allow plants to obtain water and nutrients, while shoots allow plants to obtain gases and sunlight. B. Roots allow plants to obtain water, nutrients and glucose, while shoots allow plants to obtain sunlight. C. Roots allow plants to obtain glucose, while shoots allow plants to obtain sunlight and water. D. Roots allow plants to obtain carbon dioxide and water, while shoots allow plants to obtain nutrients and oxygen.
Which of the following are greenhouse gases?
A. oxygen and nitrogen B. nitrogen and carbon dioxide C. methane and carbon dioxide D. carbon dioxide and oxygen E. oxygen and methane
The Alu family is an example of
A) short interspersed repeat elements. B) intermediate repeat elements. C) long interspersed repeat elements. D) terminal sequences. E) gene-flanking sequences.
(a) Describe by labeled diagram the structural components of the lac operon in E. coli
(b) State the function of the lac regulator gene. (c) State the function of ?-galactosidase in the lac system. (d) Show by diagram the manner in which lactose brings about transcription of the three structural genes of the lac operon. (e) Explain why certain mutations in the regulator gene (I-) of the lac system result in maximal synthesis of ?-galactosidase, permease, and transacetylase even in the absence of the inducer (lactose).