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blondinia [14]
3 years ago
8

What Are The Three main parts of small intestine ? and explain jejunum iliem are adapted for absorption of nutrients.?​

Biology
1 answer:
katrin2010 [14]3 years ago
8 0

Answer: The duodenum, jejunum, and ileum.

Explanation:

The jejunum is roughly 2.5 meters in length, contains plicae circulares (muscular flaps) and villi to absorb the products of digestion.

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3 years ago
A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
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Answer:

Increase in transcription

Explanation:

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Here, it is given that the repressor needs to first bind to an effector molecule X. Once it binds to X, it is activated and then it can bind to operator of gene A to inhibit its transcription. If the X binding domain on repressor is mutated it wont be able to bind to X. Thus it wont get activated and wont be able to attach to operator region to inhibit transcription. Hence, transcription process will keep going on uncontrolled.

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3 years ago
How is a mean established?
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