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algol [13]
3 years ago
14

explain how repressible and inducible operons differ and how those differences reflect differences in the pathways they control

Biology
1 answer:
Sonja [21]3 years ago
7 0

Answer

Operons are cluster of coordinated genes, including structural genes, an operator gene, and a regulatory gene.

Explanation:

In the The repressible operons, The transcription is usually on and repressor is in inactive form, So the specific genes are transcribed. While a regulatory molecule act as corepressor and binds to repressor protein to activate it. The repressor protein cause the inactivation of repressible operon (as the name indicate). E.g., Tryptophan Repress the trp operon.

A high level of product act as regulatory molecule (Corepressor) and turn off the operon, So anabolic pathways or synthesis of essential components are controlled by repressible operon.

In the Inducible operons, the transcription is usually off and repressor is in active form. So there is no transcription of genes. Specific Metabolite cause the activation of operon  e.g lactose cause the induction of lac operon.

As a metabolite induces the operon, So they control the Metabolic pathways or breakdown of a neutrient.

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5 0
3 years ago
A 60 year-old man has long managed his type 1 diabetes effectively with a combination of vigilant blood sugar monitoring, subcut
ivanzaharov [21]

The question is incomplete as it lacks the multiple options. The multiple option are as follows;

Careful monitoring for level of consciousness and resolution of hypoglycemia .

IV infusion of 50% dextrose and water solution .

Administration of subcutaneous glucagon

Administration of 15 to 20 g of glucose in a concentrated carbohydrate source

Answer:

Administration of 15 to 20 g of glucose in a concentrated carbohydrate source.

Explanation:

The insulin and glucagon hormone maintains the blood glucose level in the humans. In case of Type I diabetes a little amount or no amount of insulin is made by the pancreas.

The wife of a man has caused insulin error that creates hypoglycemic condition means the individual has low blood glucose level. The intake of carbohydrates can increase his blood glucose level. The wife should give 15 to 20 g of glucose to make the conditions normal.

Thus, the answer is option (4).

7 0
3 years ago
2. If 10% of the bases in a molecule of DNA are adenine, what is the ratio of adenine to guanine in the same
sertanlavr [38]

Answer: Option D) 1:4

Explanation:

Recall that the sum of all nitrogenous bases in the DNA nucleotide is equal to 100%. And specific base pairings of Adenine to Thymine (A=T), and Cytosine to Guanine (C=G) must be equal.

So, the percentage of Adenine equal thymine, and that of cytosine equals guanine.

Now, A + T + C + G = 100%

So, if adenine makes up 10% of the DNA nucleotides, then thymine is also 10%.

Then, 10% + 10% + C + G = 100%

20% + C + G = 100%

C + G = 100% - 20% = 80%

Thus, divide 80% by 2 to obtain the individual percentage of cytosine and guanine. Each will take 40%

Ratio Adenine to Guanine is 10% to 40%

or 1:4 in simplest form

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Answer:

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Explanation:

8 0
3 years ago
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