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lapo4ka [179]
3 years ago
13

Human skin pigmentation is controlled by multiple genes. What is necessary for the normal development of pigmentation? The genes

must be arranged in sequence on the DNA strand. The genes must be arranged into an operon. The genes must be regulated by a single enhancer sequence. The genes must share the same control element.
Biology
1 answer:
kap26 [50]3 years ago
4 0

The answer is;  The genes must share the same control element

When multiple genes are expressly coordinately, this is referred to as synexpression. Such genes are expressed in coordination either because they code for protein subunits of a complex protein or their gene products are required in stoichiometric amounts.


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I think they're neither perpendicular nor parallel

Explanation:

Not parallel since slope of e (3/5) isn't equal to slope of f (-8/3)

Not perpendicular since the product of their slopes isn't equal to - 1.

=> (3/5)(-8/3)= - 8/5 and not - 1

(plz make sure you typed the equations correctly.)

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The names of the respiratory structures involved include the following: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli.

<h3>What is respiration?</h3>

Respiration is defined as the oxygenation of blood through the intake of oxygen and the removal of carbon dioxide.

The pathway of oxygen gas molecule from the surrounding air through the respiratory system to the blood include respectively the following:

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Learn more about respiration here:

brainly.com/question/2809259

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