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BigorU [14]
3 years ago
15

Describe how microbes of the normal flora in the human body can become opportunistic pathogens. Give one (1) example of a normal

flora that can become opportunistic in the body:
Biology
1 answer:
Brilliant_brown [7]3 years ago
3 0

Answer:

Opportunistic pathogens may be defined as the pathogens that are normally not able to cause infection but when get an advantage they multiply in number and can cause disease.

The normal flora of the skin can become opportunistic pathogens as they get the advantage by change in the skin environment. The damage to the sin and their excess multiplication and in case of weak immune system the normal skin flora become the opportunistic pathogen.

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C an ellipse

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In the family tree below, people with the recessive trait of attached earlobes are shaded gray
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<h2><u>Full Question:</u></h2>

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

What must be true about the person labeled "A"?

A. It is a male with at least one dominant allele.

B. It is a male with two dominant alleles.

C. It is a female with at least one dominant allele.

D. It is a female with two dominant alleles.

<h2><u>Answer:</u></h2>

Its a male with atleast one dominant allele.

Option A.

<h3><u>Explanation:</u></h3>

The gene for the attached earlobe is recessive while the gene for the free earlobes is dominant. In the phylogenetic tree, we can see that both the father and mother aren't having attached earlobes. So both of them are having atleast one dominant allele which makes them have free earlobe.

In the F1 offsprings, one of the female and a male is having free earlobes. So both of them have atleast one dominant allele. The 2nd female is having an attached earlobe. So both the recessive allele have come form one parent each. So both of them are heterozygous.

Thus, the male marked as A atleast have one dominant allele. He can be a homozygous dominant, but the probability is 25%.

8 0
3 years ago
The atmosphere is a mixture of gases. What are the primary gases that comprise the earth's atmosphere?
Romashka-Z-Leto [24]

Answer:

A. Nitrogen, Oxygen, and Argon

Explanation:

Hope this helps!

If not, I am sorry.

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22. Eutrophication is the increase in the amount of nutrients that causes an environmental concern. Which of the following choic
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Algal booms are harmful to the enviorment

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