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3 years ago

Which planet is the moon thought to have come from originally?

1 answer:

3 0

The Moon is thought to have come from the Earth. In 1975, the giant impact hypothesis was put forward. This suggests that the Earth was hit by a planet about the size of Mars around the time of the formation of the solar system approximately 4.5 billion years ago, and the impact caused part of the outer layer of the Earth to spin off and form what is now the Moon.

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Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Wh

Molodets [167]

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

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3 years ago

The appropriate unit for defining and measuring genetic variation is the

aksik [14]

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3 years ago

You have spent 24 hours traveling from the U.S to New Zealand, on quite a few airplanes with many stops. Because of the stress,

nalin [4]

Answer:

A hematocrit value of your blood would be greater than normal because of dehydration.

Explanation:

The hematocrit value is an indicator of the proportion of the solid components of blood (red blood cells) with respect to the liquid component (it means plasma). When you are severely dehydrated, the proportion of plasma diminish while the solid components remain the same. In consequence, the red blood cells concentration will be greater and the hematocrit value (solid components/plasma) will be higher than normal. This condition is reversible, if you drink enough water, your hematrocrit values will be normal again.

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The nurse is developing a nursing diagnosis for a client after surgery. the nurse documents the "related to" factor as first tim

disa [49]

The assessment activity that enabled the nurse to derive to the conclusion of "related to" factor is THE USE OF ATROPINE MOLECULE.

Atropine injection is used before anesthesia. This decreases the mucus secretion and keeps the heartbeat normal during anesthesia and surgery. In case of any allergic reaction, atropine sulfate should not be administered in the patient.

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3 years ago

Was Durer Roman Catholic or Protestant?

dsp73

Answer: im not one hundred percent sure this is correct but i think it is Catholic if im right can you mark me as brainiest

Explanation:

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3 years ago

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