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S_A_V [24]
1 year ago
13

A scientist notices that when she adds a small, water-soluble molecule to a dish of cells, the cells turn off transcription of a

gene. She hypothesizes that the ligand she added binds to a(n) ______ receptor. Intracellular Hormone Enzyme-linked Gated ion channel-linked
Biology
1 answer:
Lelechka [254]1 year ago
7 0

Answer:

Enzyme-linked

Explanation:

The cell surface receptors that have intracellular domains associated with enzymes are called enzyme-linked receptors. The added molecule was water-soluble and cannot pass through the membrane to bind to intracellular receptors. Binding of the added molecule to the enzyme-linked receptor led to the activation of associated enzymes to generate the response (down-regulation of expression of the target gene).

Examples of enzyme-linked receptors include tyrosine kinase receptors. Binding of the signaling molecule to these receptors triggers phosphorylation of the intracellular domain which in turn transmits the signal to the cytoplasmic messenger.

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Soil that is so rich in organic matter it can be burned is called what?
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Answer:

Superficial part: maxillary process of zygomatic bone, Inferior border of zygomatic arch (anterior 2/3)

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Answer:

See the answer below

Explanation:

Let the disorder be represented by the allele a.

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                    Aa     x     Aa

Progeny:    AA    2Aa    aa

Probability of being affected = 1/4

Probability of being a carrier = 1/2

Probability of not being affected = 3/4

(a) The chance that the child second child of Mary and Frank will have alkaptonuria = 1/2

(b) The chance that  the third child of Sara and James will be free of the condition = 3/4

(c)

(d) If someone has no family history of the disorder, their genotype would be AA.

                 AA     x     aa

                        4 Aa

<em>The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history </em>= 0

(e)

(f) <em>The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history</em> = 0

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I assume that in this item, we are asked to solve for the force exerted during the heartbeat. Force is the product of the mass and acceleration. To solve for the acceleration in this item, we divide the velocity by time.
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                                      = 0.4 kg m/s² = 0.4 J
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