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Oksi-84 [34.3K]
3 years ago
14

In the skeletal system, which are the two main tissues responsible for structural support in the body?

Biology
1 answer:
stepladder [879]3 years ago
3 0

the two main skeletal systems to support the tissue of the body is bone and cartilage

hopefully this will help

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In the absence of glucose and the presence of lactose, where is the lac repressor bound?.
garik1379 [7]

In the absence of glucose and in the presence of lactose, the lac repressor is bound to the allolactose, and the lac operon can start.

<h3>What is the lac operon?</h3>

A lac operon is an inducible operon that is activated in the presence of lactose in the outer surroundings of the bacteria. Operon is a series of genes present in the bacterial DNA.

When the lactose is present, the repressors move to bind the allolactose, and as a result, the RNA polymerase can access the lac operon. The repressor has more affinity for allolactose than the operator. RNA polymerase, along with cAMP and CAP proteins, initiates the transcription of lac operon. The transcript has genes for galactosidase, permease, and transacetylase.

Hence, in the absence of glucose and in the presence of lactose, the lac repressor is bound to the allolactose.

Learn more about the lac operon, here

brainly.com/question/2562849

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Opbolteplz day heh 9 !!
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