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poizon [28]
3 years ago
7

Pathogen A has an ID50 of 50 particles, pathogen B has an ID50 of 1,000 particles, and pathogen C has an ID50 of 1 × 106 partic

les. Which pathogen is most virulent?
pathogen A
pathogen B
pathogen C
Biology
1 answer:
klemol [59]3 years ago
6 0

Answer:

Option A, pathogen A

Explanation:

ID50 is a way to measure the virulent efficiency of a pathogen. ID50 for a pathogen depicts the number of pathogens required to infect or cause the associated disease with in 50 percent of any population sample.

This means that 50 pathogens A can infect 50 percent  of any sample population.

While 1000 pathogen B and 1000000 pathogen C are required to infect 50 percent  of any sample population.

hence, Most virulent pathogen is Pathogen A

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Which of the following organisms was most likely the most recent common ancestor of all animals? a. multicellular algae b. multi
eduard

Answer:

b. multicellular fungus

Explanation:

In a recent study, it was discovered that there was a genetic relationship between multicellular organisms like protozoa and animals and fungi have a common ancestor as their ancestors had contact about 1.1 billion years ago.

Therefore, the organism that was most likely the most recent common ancestor of all animals is multicellular fungus

4 0
3 years ago
FILL IN THE BLANK. The Principle of ______ states that the 2 alleles present at each gene locus separate from one another during
BaLLatris [955]

The Principle of <u>segregation</u> states that the 2 alleles present at each gene locus separate from one another during gamete formation and remain distinct.

What is principle of segregation?

According to the principle of segregation theory, every human has two alleles for each specific feature and functions, and these alleles separate throughout the development of gametes. In other words, in everycase, each gamete contains a single allele.

Therefore, The Principle of <u>segregation</u> states that the 2 alleles present at each gene locus separate from one another during gamete formation and remain distinct.

To learn more about principle of segregation

Here: brainly.com/question/2161501

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7 0
1 year ago
A gene mutation is a change in the sequence of nucleotides that occurs during cell replication (mitosis and meiosis)within a sin
Shalnov [3]

True

Changes in the transcription of mRNA or the translation of a polypeptide are not considered to be mutations because they are not permanent changes to the cell.

Explanation:

The half-life of mRNA and proteins is short. mRNA has an average of 10 hours of life span while proteins have an average of  several days. Therefore mutation in these biomolecules will only persist as long as this mutated mRNA of protein exists. After its life-span, the molecule is degraded and replaced by a non-mutated mRNA or proteins. This is because the piece of DNA that codes for the mRNA and subsequent protein is not mutated. A mutation on DNA is the permanent kind of mutations because DNA is a highly stable molecule that stores information about the cell.

Learn More:

For more on mutations check out;

brainly.com/question/781815

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7 0
3 years ago
How can society use scientific research on environmental issues?
Julli [10]

<em>I think the answer is C, Hence I would pick the answer to be B because it sounds to be more information into the answer then A/B. Hope this helps, let me know if I am right. </em>

3 0
2 years ago
What connects the
andreyandreev [35.5K]
B. Hydrogen Bonds connect nitrogenous bases together
3 0
2 years ago
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