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I am Lyosha [343]
3 years ago
12

In sickle cell disease variation in one gene causes red blood to end or sickle this means the suckled cells ___

Biology
1 answer:
ivolga24 [154]3 years ago
5 0
Your answer is actually idk
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O type blood contains what type of antibodies?
motikmotik
O type blood contains both A and B antibodies.
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2 years ago
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The surface of the skin can be mapped into distinct regions, each served by a single spinal nerve: these regions are called:
Ivan

Answer:

The correct answer is D. The surface of the skin can be mapped into distinct regions, each served by a single spinal nerve: these regions are called dermatomes.

Explanation:

A dermatome is the area of skin innervated by a single spinal nerve and its spinal ganglion. The cutaneous nerves are those that reach the skin, picking up the sensitivity of the skin. Each cutaneous nerve is distributed in a certain area of skin, called a dermatome.

A pair of posterior or sensory roots and a pair of anterior or motor roots arise from each cord segment, joining laterally at the level of the intervertebral foramen to form a mixed spinal nerve. Each of these innervates a strip of skin called a dermatome, so the body surface can be considered a true mosaic of these.

In the extremities the arrangement of dermatomes is more complicated because of the embryological rotation of the limbs as they grow from the trunk.

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3 years ago
How is dna the basic of life?
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DNA is considered the molecule of life because it contains the instructions that ensure the continuity of life. Employment of DNA to code for protein is the basis of all life on earth. 

In all living things, inherited DNA  is used to code for amino acids  which when joined or linked together in a deliberate specific  manner form polypeptides which make up proteins. These proteins are responsible for  structure and function of cells. 

For example DNA provides information to make  four polypeptide (two beta and two alpha ) chains  which make up hemoglobin, the protein that functions as the oxygen carrier in red blood cells. In summary,

DNA → protein →  trait, and that relationship is the physical basis of life.


6 0
3 years ago
DNA is replicated in the nucleus of eukaryotes, but in the cytoplasm of prokaryotes. Why is this?
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Answer:

In prokaryotes (organisms without a nuclear membrane), DNA undergoes replication and transcription and RNA undergoes translation in an undivided compartment. All three processes can occur simultaneously.

   In eukaryotes (organisms with a nuclear membrane), DNA undergoes replication and transcription in the nucleus, and proteins are made in the cytoplasm. RNA must therefore travel across the nuclear membrane before it undergoes translation. This means that  transcription and translation are physically separated. The primary transcript, heterogeneous nuclear RNA (hnRNA), undergoes extensive post-transcriptional processing to make a messenger RNA (mRNA)molecule that can pass through the nuclear membrane.

Explanation:

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Chemosensitive cells in the carotid and aortic bodies are sensitive to the
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They are sensitive to changes in arterial carbon dioxide, oxygen and Ph.

Explanation:

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