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bulgar [2K]
2 years ago
11

People who get angry easily tend to have more heart disease. that's the conclusion of a study that followed a random sample of 1

2,986 people from three locations for about four years. all subjects were free of heart disease at the beginning of the study. the subjects took the spielberger trait anger scale test, which measures how prone a person is to sudden anger. here are data for the 8474 people in the sample who had normal blood pressure. chd stands for "coronary heart disease." this includes people who had heart attacks and those who needed medical treatment for heart disease.
Biology
1 answer:
statuscvo [17]2 years ago
6 0
Sorry I could not figure it out.
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What is the purpose of flagella?
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One form of chromatin modification is acetylation, which is known to occur on positively charged histone tail amino acids, thus
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Answer:

A. The tails do not interact with the DNA

Explanation:

The acetylation refers to the transfer of the acetyl group from Acetyl-CoA to the N-terminal of the histone protein.

Lysine residues (positively charged amino acid) are present at the end of the N-terminal of the histone protein which is neutralized by the acetyl group.

This loses the compaction between the positively charged histone and the negatively charged DNA and the DNA becomes more relaxed. This relaxed state allows the transcription factors to easily bind the DNA and therefore the DNA becomes transcriptionally active.

Thus, Option-A is correct

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3 years ago
Sickle Cell anemia is a disease caused by a recessive allele. What is the chance a child will have Sickle Cell if one parent has
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If one parent has been affected by sickle cell anemia, while the other parent does not and is homozygous, the chances that a child will have this disorder is 0%. Thus, the correct option is C.

<h3>What is Sickle Cell anemia?</h3>

Sickle Cell anemia may be defined as a genetic disorder that is caused by a recessive allele. It is an inherited disease in which the red blood cells have an irregular crescent shape, obstruct small blood vessels, etc.

This disease is inherited when both genes of each parent are supposed to be defective or carriers. While in this case, only parents are affected by the disorder while the other is homozygous for the normal allele.

In this condition, all the offspring produced by both parents remain as carriers but not affected ones.

Thus, the correct option is C.

To learn more about Sickle cell anemia, refer to the link:

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7 0
2 years ago
Healthcare workers are exposed to many different types of patho genic and nonpathogenic micro organisms which body system works
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The body systems that work together to protect the body from pathogens are the immune system and circulatory system.

<h3>What are body systems?</h3>

Body systems are groups of organs, tissues and cells that act to perform one or more specialized functions.

The immune system is an organ system that acts to protect the body against the entry of pathogenic organisms such as bacteria.

In conclusion, the body systems that work together to protect the body from pathogens are the immune system and circulatory system.

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2 years ago
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