1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rzqust [24]
2 years ago
9

An injection containing a weakened form of disease-causing organism will usually trigger ...

Biology
1 answer:
qaws [65]2 years ago
3 0

A vaccine contains half killed or weakened pathogen such as a virus or bacterium, which causes a specific disease. A vaccine can be administered orally or through an injection in a healthy human. The function of the vaccine is to train the immune system by detecting the pathogen and kill them. After vaccination the cells (B lymphocytes) of the immune detects the antigens in the vaccine. The B lymphocytes make antibodies against the antigen and eliminate antigens. These antibodies  remained in the body and in case of real infection, they protect our body from pathogen.  

You might be interested in
Give four causes of mutation
exis [7]
- DNA codes fail to match accurately.

- The environment.

- Disclosure to chemical or radiation. 

- <span> Mistake in the cellular machinery</span>
6 0
3 years ago
Read 2 more answers
What differs among DNA structures of different species?
weqwewe [10]

Answer:

D) the arrangement of the nucleotides within genes

Explanation:

De-oxy ribo nucleic acid that is basically a polymer of nucleotides. Nucleotides are composed of three basic units: a de-oxyribose sugar unit, a phosphate group and nitrogenous bases that can be Adenine, Gunanine, Thymine and Cytosine.Adenine always pairs with Thymine and Guanine always pairs with Cytosine.

This is a universal composition of DNA in each and every living organism. The genes are a segment of DNA that contain specific sequence of nucleotides and encode for a specific trait of organism such as height, weight, eye color etc. The sequence of nucleotides expresses the trait in the form of protein product during the process of Translation. The products of translation are amino acids and every amino acids encode for a specific protein  in almost  all living organisms.

So, what differs in the specie is the sequence of nucleotides in genes. Infact this is the nucleotide sequence which brings evolution in organism and organisms evolve to form new specie with the passage of time. One major cause of change in nucleotide sequence is mutations due to which the organisms change with time.

Suppose the sequence of nucleotide of specific gene in organism A is

AAGGGGAAATTT

However in other specie organism B of same specie is:

TAGGGGAAATTT

This means only mutation of one base changed the gene in organism B and also its product called protein.

Hope it help!

8 0
3 years ago
Read 2 more answers
Kyle is holding a bag of 250 jelly beans. When Mark takes out two jelly beans, Kyle is not able to tell a difference. This illus
sp2606 [1]
This illustrates <span>absolute threshold. The correct option among all the options that are given in the question is the second option or option "B".

</span><span>A spot in the middle of the retina that only contains cones is called the fovea. The correct option among all the options that are given in the question is the third option or option "C".</span>
4 0
3 years ago
Read 2 more answers
4. Which of the following conclusions about science is best supported by the text?
hjlf

Answer:

4.) C

Explenation

im sure i was right i already answer this question

7 0
2 years ago
How do you do this biology work
wolverine [178]

Answer:

22 pairs of autosomes, 1 pair of sex chromosomes, I notice that the X and Y chromosomes are sex chromosomes and that they are different in length and size., The sex of this organism is male, as the genotype XY can only mean a male gender; female gender is denoted by the genotype XX., You didn't put in Karyotype A., The special circumstance is with group 21 of chromosomes. There are 3 instead of 2 in that group., This circumstance results in a condition known as trisomy 21, or Down Syndrome. Down syndrome causes a distinct facial appearance, intellectual disability, developmental delays, and may be associated with thyroid or heart disease. , Name the karyotype "Down Syndrome Karyotype?" (I'm not sure on the last one)

7 0
2 years ago
Other questions:
  • You might blink as an object speed toward your eyes.this quick reaction is an example of the nervous system interacting with the
    10·2 answers
  • Can somebody help me?
    6·1 answer
  • Which tool should be used to accurately measure 22.0 mL of a liquid
    13·2 answers
  • What is each half of a chromosome called?
    11·2 answers
  • What are the hydrothermal vents food chain organismis
    15·1 answer
  • Which of the following information could be included in the description of a grasshopper’s niche, but not in a description of it
    7·1 answer
  • If a child is watching a favorite sibling getting scolded for misbehavior, a _____ neuron is likely to be activated in an empath
    9·2 answers
  • The features of alveoli for the efficient exchange of gases.
    9·1 answer
  • Which part of melosis ensures greater genetic diversity?
    13·1 answer
  • The example of protective food is​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!