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Sladkaya [172]
3 years ago
14

What is vector in life sience​

Biology
1 answer:
ivolga24 [154]3 years ago
6 0

Answer: Traditionally in medicine, a vector is an organism that does not cause disease itself but which spreads infection by conveying pathogens from one host to another. Species of mosquito, for example, serve as vectors for the deadly disease Malaria. A vector is a living organism that transmits an infectious agent from an infected animal to a human or another animal. Vectors are frequently arthropods, such as mosquitoes, ticks, flies, fleas and lice. brainliest

Explanation:

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If grey fur is dominant to white fur in a rabbit population, how many possible phenotypes will there be in the offspring of a cr
Ludmilka [50]
Allele for gray fur is A (dominant)
  Allele for white fur is a (recessive)
Genotype of heterozygous is Aa (heterozygous is gray, because its allele is dominant)
If we cross two heterozygous
<span>Parents: Aa  x  Aa
</span> <span>F1: AA  Aa  Aa aa</span>
The ratio between phenotypes is 3:1 (gray:white)
<span>AA Aa Aa  are with gray fur</span>
<span>aa is with white fur </span>
4 0
3 years ago
Various sigma factors play a role in gene expression by.
Anna [14]

Answer:

Sigma factors bind to the promoter region of a particular gene and facilitating the binding of RNA Polymerase to the promoter region (formation of the RNA polymerase holoenzyme complex) in order initiate transcription of the gene.

Put simply - Helps RNA Polymerase do it's job.

8 0
2 years ago
"Dinosaurs went extinct 65 million years ago." This statement is an example of _____.
VARVARA [1.3K]
Absolute time is the answer

3 0
3 years ago
The new Hazard Communication Standards provide teachers and students the right to __________ chemical hazards.
Aleonysh [2.5K]

The new Hazard Communication Standards provide teachers and students the right to manipulate chemical hazards.

Chemical hazards are non-biological substances that can cause damage to health. These are used in different enterprises, companies, school, universities and laboratories for different purposes such as cleaning, disinfection, scientific experiments, among others. When handling them, <u>employees are exposed to them and are vulnerable to harm from these chemicals</u>.  

There are many types of hazardous chemicals to be wary of, such as:

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In the workplace, exposure to these substances represents a real occupational hazard and there must be regulations to ensure that they are safe to handle.

The Occupational Safety and Health Administration (OSHA) is the agency of the U.S. Department of Labor which determined the Hazard Communication Standards. <u>This is a document with the necessary information to study the hazards of the chemical substances used by different employees in the companies</u>, so that they are aware of the dangers of these substances. These employees have the right to know exactly what compounds they handle and the risks involved in their use as well as the precautions and care to be taken.

Therefore, by having these safety standards in place in schools and universities, teachers and students have the possibility and the right to handle chemical hazards safely to be able to conduct the class normally and learn what is necessary.

Learn more about chemical hazards here: brainly.com/question/13113515

6 0
2 years ago
In addition to ATP, what types of molecules are produced in the Krebs cycle?
Jlenok [28]

Answer:

carbon dioxide, NADH, FADH2

The Krebs cycle sends NADH and FADH2 to the electron transport chain after  producing it, that means it inadvertadly makes CO2

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