The presence of a mutant lac repressor that could not bind lactose would result in no transcription even when lactose was present because the mutant repressor would remain bound to the lac operator
The transcription of lac operator is controlled by the lac repressor. When lactose is present, the lac repressor normally will bind to the lactose, removing itself from the lac operator so it could be transcripted.
In this case, the mutation makes the lac repressor keep binding to the lac operator so the result would be no transcription even when lactose present.
<h2>Correct Answer is option "d"</h2>
Explanation:
- Heroine is an drug of opiod plant which is made up of from morphine,a natural substance which taken from the seed pod of the different opium poppy plants.
- Heroine is found in various form such as in white powder and brown powder.
- Other common names for heroine are horse,smack & hell dust.
- People takes heroine in different route of administration such as few people smoke it, some inject, or other used as sniff etc.
- Heroine enter in brain rapidly and combined with opiod receptors on cells ,it involve in pain and pleasure,controlling heart rate etc.
- It show both effects short term and long term effect on the brain and body.
- Hence, the correct answer is option d "Heroine"
Most efforts to identify interhemispheric differences in brain anatomy have focused on the size of three areas of cortex that are important for language, namely: the planum temporale, the frontal operculum, and Heschl's gyrus.
One distinguishing feature of the way the human brain is organised is hemispheric specialisation, often known as cerebral dominance or lateralization of function. The Sylvian fissure's cortical region directly behind the auditory cortex (Heschl's gyrus) is known as the planum temporale.
Wernicke's area, one of the most significant functional areas for language, is centred in a triangle zone. The area of the frontal lobe that, in primates, covers the rostrodorsal region of the insula is known as the frontal operculum.
Therefore, three areas of cortex that are important for language are: the planum temporale, the frontal operculum, and Heschl's gyrus.
Learn more about frontal operculum here;
brainly.com/question/14925481
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Answer:
at the lowest part of the pyramid
Explanation:
this is due to enable continuation of the pyranid correcty
