Human gene function in mice bcos mice is a closely related intelligence to man <span />
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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Chemical Reactions. There is your answer.
Answer: Improvements helped allow scientists to see the cells in greater detail and enable them to discover cells in all types of living matter.
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"Marin drank heavily while she was pregnant, so it is possible that the infant has fetal alcohol spectrum disorder."
This disorder is characterised by several physical features including a smaller head perimeter, <span>low body weight,</span> and also several other cognitive and sensory deficiencies. The disorder takes place when the mother has drunk alcohol through her pregnancy. Although it is not sure what's the exact biological pathway that leads to the disorder, it is known that a fetus has much less antioxidant protection or enzymes than adults.