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spayn [35]
3 years ago
5

Which circulatory disorder indicates an underlying coronary artery condition?

Biology
1 answer:
Vera_Pavlovna [14]3 years ago
7 0
The disorder is Angina pectoris
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The antigen-binding sites of an antibody molecule are formed from the molecule's variable regions. why are these regions describ
tino4ka555 [31]

The antigen-binding sites of an antibody molecule are formed from the molecule's variable regions which are described as so because their amino acid sequences can be different on different antibodies.

The specificity of antibodies is determined by the variable regions found at their endpoints. Antibodies are specialized proteins secreted by B-cells of the immune system. They are also called immunoglobulins. They contain four polypeptide chains that comprise two heavy chains and two light chains to form a Y-shaped molecule.

The variable regions, more specifically the hypervariable regions of an antibody, have a high ratio of different amino acids with the most common amino acids provided in one place. The variable region serves as the antigen-binding site while the constant region found below the variable region is determined to invade the antigen.

Antibodies are preserved in our body to identify the antigen the next time it encounters. They send the signals to the other body parts to reject the antigen and invade it.

To know more about variable regions of antibodies, refer to the following link:

brainly.com/question/17439586
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2 years ago
Where on a microscope do you place the object you want to view?
OLEGan [10]
Place the object on the stage of the microscope
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In which terrestrial biome would you find precipitation of 300 to 900 millimeters (mm) each year?
True [87]

Answer: B. coniferous forests.

Explanation:

Coniferous forests are the terrestrial biomes which receives an annually 300 to 900 millimeters precipitation. These forests exhibits trees which undergoes special adaptations in the scarcity of water. The forests exhibit coniferous trees which means instead of leaves they posses needles and instead of flowers they have cones. These adaptations helps in preventing the water loss through transpiration.

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After crossing purebred red (dominant) and purebred white (recessive) flowers, pink flowers appeared. Using symbols, show the cr
-Dominant- [34]
Since after crossing a red and a white flower produced pink flowers, the red color trait shows an incomplete dominance and has a genotype of Rr.
Using the Punnett to determine the cross between pink and white flowers:
   |   R   |   r   |
r  |  Rr  |   rr   |
r  |  Rr  |   rr   |

The results indicate that the cross between pink and white flowers will produce a ratio of 1:1

Rr x rr
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Answer:

where  is question ?

Explanation:

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