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kramer
3 years ago
6

What is a substance that provides the host immunity by introducing a weakene (attenuated) or killed (inactive) version of a viru

s?
Biology
2 answers:
CaHeK987 [17]3 years ago
6 0
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response.
nexus9112 [7]3 years ago
3 0

Answer:

Vaccines are the substance that provides immunity to the body by introducing a weak or dead virus.

Explanation:

Vaccines are not the medicines which helps in the prevention of disease in animals. Vaccine contains weak or dead microorganisms when injected in our body. Our body makes antibodies according to the structure of microbes which are injected. So whenever, the microbes enter into the body, our body is prepare for it. So the microbes cause no or less damage to the body.

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3 years ago
Which is not a major difference in the organization or content of prokaryotic and eukaryotic genomes?
bulgar [2K]

Answer:

All of the above are true

Explanation:

Organisms possess two types of genome viz; prokaryotic genome and eukaryotic genome. The eukaryotic genome is possessed by cells with a well-defined nucleus, where their genetic material (DNA). The prokaryotic genome, on the other hand, lacks a membrane-bound nucleus. The major organization or content between these two genomes are:

- Prokaryotic genomes generally have less DNA and fewer genes than eukaryotic genomes.

- Prokaryotic genomes have fewer repeated sequences and noncoding, intragenic sequences than eukaryotic genomes.

- Most prokaryotic genomes are contained in one circular chromosome while most eukaryotic genomes are contained on several linear chromosomes.

- In general, eukaryotic genomes contain many introns, repeated sequences, and transposable elements.

Based on this, all of the above options are TRUE

6 0
3 years ago
What would happen if gel was placed with dna
Zolol [24]
What type of gel is it?
3 0
3 years ago
Read 2 more answers
When an ionic compound such as sodium chloride (NaCl) is placed in water, the component atoms of the NaCl crystal dissociate int
PtichkaEL [24]

Answer:

The correct answer is C) 1 L of 1.0 M NaCl

Explanation:

NaCl is a ionic compound so it dissociates in water into Na⁺ and Cl⁻ ions. Glucose is a covalent solute so it does not dissociates into ions. So, when we dissolve NaCl we have twice the amount of particles in solution in comparison with glucose. According to this:

A) and B) are solutions with the same concentration (0.5 M) but NaCl solution will have more solute particles than glucose.

C) and D) are solutions with more solute amount because they are more concentrated (1 M), but NaCl solution will have more solute particles than glucose solution ( 1 mol of Na⁺ ions + 1 mol of Cl⁻ ions).

The solution with the greatest solute particle number is C).

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3 years ago
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Answer:

Pro

Explanation:

because im a teacher

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