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3 years ago

Which one of the following accurately describes the Lac operon?

1 answer:

5 0

Option D is the one most accurately describing Lac Operon. The lac operon is known as an inducible system. Since Lac operon is an inducible system, it will only activate in the presence of a key molecule . The key molecule, lactose, induces the Lac operon to be activated. Once lactose binds to the repressor, it causes it to be removed. RNA polymerase is then able to access the genes in the Lac operon and transcribe them in RNA and eventually proteins.

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Which show that the results of an experiment are relible

Ronch [10]

The question is incomplete as it lacks the apropriate group of choices to answer this, however, the group of choices are as follows:

A. The experiment creates ideas for new experiments.

B. The experiment supports the hypothesis.

C. The experiment can be repeated with the same results.

D. The experiment uses a very simple procedure.

Answer:

The correct answer is : B. The experiment supports the hypothesis.

Explanation:

Hypothesis is a possible explanation for the reason of any natural process to be occurred. Hypothesis can be proved with the help of scientific experiment and supported by the various evidences and data analyzed with scientific method.

Reliability of an experiment can be shown by the repetitive results of performed experiment that satisfies the hypothesis and its parts if it does not supports it is false hypothesis.

Thus, the correct answer is : B. The experiment supports the hypothesis.

7 0

3 years ago

How are the hormones of the endocrine system able to affect only certain cells in the body

Fiesta28 [93]

Answer:

Because only those target cells have receptors for that particular hormone.

5 0

3 years ago

please i need help and this is a test so i can improve my grade cause i currently have an overall grade of an f .

kozerog [31]

Number 5 is b while number 7 isD

8 0

3 years ago

1+2+3+4-17(2) < 36 +23=?

Dmitrij [34]

Answer:

True

Explanation:

The question is incomplete. However, I'll treat it as a true/false question

Given

$1+2+3+4-17(2) < 36 +23=?$

Required

True or false

$1+2+3+4-17(2) < 36 +23$

Open bracket

$1+2+3+4-17*2 < 36 +23$

$1+2+3+4-34 < 36 +23$

Evaluate the expression on the left-hand side

$-24 < 36 +23$

Evaluate the expression on the right-hand side

$-24 < 59$

24 is truly less than 59.

Hence:

$-24 < 59 = True$

6 0

3 years ago

Match the items

Ulleksa [173]

The terms for each description are:

Edwin Hubble: known as the father of the Big Bang Theory.
Albert Einstein: responsible for the general theory of relativity.

<h3>How to match the terms with each description?</h3>

In this exercise, you're required to match the appropriate terms with each description as follows:

Cosmological Principle: states that all matter is evenly distributed throughout the universe, in the same amounts, moving in the same directions, and in the same ways.

Gravity: thought to have started the "Big Bang".

Expansion: Hubble's law tells us this is happening to the universe.

Explosion: formed the stars, galaxies, and solar system.

Edwin Hubble: he is known as the father of the Big Bang Theory.

Albert Einstein: he is responsible for the general theory of relativity.

Read more on Big Bang Theory here: brainly.com/question/15116196

#SPJ1

3 0

2 years ago