For each of the following mutant E. coli strains,plot a 30-minute time course of concentration ofβ-galactosidase, permease, and acetylase enzymesgrown under the following conditions: For the first10 minutes, no lactose is present; at 10 minutes, lactosebecomes the sole carbon source. Plot concentration onthe y-axis, time on the x-axis. (Don’t worry about theexact units for each protein on the y-axis.)a. I− P+ o+ Z+ Y+ A+ / I+ P+ o+ Z− Y+ A+b. I− P+ ocZ+ Y+ A− / I+ P+ o+ Z− Y+ A+c. IsP+ o+ Z+ Y+ A+ / I− P+ o+ Z− Y+ A+d. I− P− o+ Z+ Y+ A+ / I− P+ ocZ+ Y− A+e. I− P+ o+ Z− Y+ A+ / I− P− ocZ+ Y− A+
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
For each of the following mutant E. coli strains,
plot a 30-minute time course of concentration of
β-galactosidase, permease, and acetylase enzymes
grown under the following conditions: For the first
10 minutes, no lactose is present; at 10 minutes, lactose
becomes the sole carbon source. Plot concentration on
the y-axis, time on the x-axis. (Don’t worry about the
exact units for each protein on the y-axis.)
a. I
− P+ o+ Z+ Y+ A+ / I+ P+ o+ Z− Y+ A+
b. I
− P+ oc
Z+ Y+ A− / I+ P+ o+ Z− Y+ A+
c. I
s
P+ o+ Z+ Y+ A+ / I− P+ o+ Z− Y+ A+
d. I
− P− o+ Z+ Y+ A+ / I− P+ oc
Z+ Y− A+
e. I
− P+ o+ Z− Y+ A+ / I− P− oc
Z+ Y− A+
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