A male sustains a crushing injury to his foot. After weeks of care, he begins to notice that he cannot bend the little toe on hi
1 answer:
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Answer:
Strain Presence of Lactose Absence of Lactose
(+) (-)
For the wild type case, the lacZ gene product will be expressed in the presence of lactose only.
(-) (-)
Because of the super repressor, transcription will not take place regardless of the presence of lactose.
(+) (+)
The constitutive operator will allow for transcription to occur, whether or not lactose is present.
(+) (+)
The repressor is non-functional, transcription will occur with or without presence of lactose.
(+) (+)
The super repressor will not be able to stop transcription as it cannot bind to the constitutive operator.
(-) (-)
The promoter is non-functional, transcription will not start and hence, not gene product formed.
(-) (with glucose present) (-)
E. coli will not metabolize lactose in the present of glucose, since glucose is the preferred source of nutrition.
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Answer:
c. 10°C
Explanation:
Given that: A slice of pizza has 500 kcal.
That is to say Q = 500kcal
If the pizza was burned and all the heat were used to warm a 50-L container of cold water,
what would be the approximate increase in the temperature of the water?
We were also being told to note that; A liter of cold water weighs about 1 kg.
i.e 50-L container weighs about 50kg (mass)
∴ Since;
Q= 500kcal,
m = 50kg; &
the specific heact (c) = 1
we can find the approximate increase in the temperature of the water by using the formula:
Q = mcΔT
ΔT =
ΔT =
ΔT = 10°C