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
IrinaK [193]
3 years ago
5

Explain why the individual who is a carrier for hbv is considered a threat to public health.

Biology
1 answer:
posledela3 years ago
7 0

Answer:

HBV (hepatitis B) is a viral infection that attacks the liver.  It can cause acute or chronic disease and it is transmitted through contact of blood or other body fluids of an infected person.  

<em>An infected person can be transmitted through birth, sharing of needles, sharing of common household personal hygiene items, direct contact with an open or bloody sore, or through sexual contact.</em>

It is a hidden treat because those who have hepatitis B can transmit it to another (blood/other body fluid); if they know they have it or not.  

Acute hepatitis B is short-term (6 months after being exposed) and they can become immune and can not get infected again; but it can lead to chronic hepatitis B (depends on how healthy the person is).

Chronic hepatitis B can cause liver damage, cirrhosis, liver cancer, and death.  

Explanation:

You might be interested in
If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next genera
Kisachek [45]
Q = recessive allele frequency = 0.3, and thus in H-W equilibrium there are ONLY two alleles, q (recessive) and
p (dominant). Therefore all of the p and q present for this gene in a population must account for 100% of this gene's alleles. And 100% = 1.00.
So p, the dominant allele frequency, must be equal to 1 - q --> p = 1 - q
p = 1 - 0.3 = 0.7.
Since heterozygotes are a combination of the p and q, we must again look at the frequencies of each genotype: p + q = 1, then (p+q)^2 = 1^2
So multiplying out (p+q)(p+q) = 1, we get: p^2+2pq+q^2 = 1 (all genotypes), where p^2 = frequency of homozygous dominant individuals, 2pq = frequency of heterozygous individuals, and q^2 = frequency of homozygous recessive individuals.
Therefore if the population is in H-W equilibrium, then the expected frequency of heterozygous individuals = 2pq = 2(0.7)(0.3)
2pq = 2(0.21) = 0.42, or 42% of the population.
Hope that helps you to understand how to solve population genetics problems!
7 0
3 years ago
Where is the nucleus usually located?
Nady [450]

Answer:

B

Explanation:

usually in the center . depends on what cell prokaryotic or eu

6 0
1 year ago
Read 2 more answers
Which best describes ideal growing conditions for fungi?
Anika [276]

Answer:

Moist and Warm because fungi is bomb

8 0
2 years ago
Read 2 more answers
Need help with this question for a grade
Amanda [17]
I would say the first one a comet. :)
5 0
3 years ago
75 grams of salt are added to 100 ml of water. What is the concentration of the solution? *
Lera25 [3.4K]

Answer:

75 grams of salt are added to 100 ml of water

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • What system has different male and female structures in human body?
    12·1 answer
  • BRAINLIEST ASAP!
    6·2 answers
  • There are over 100 alleles known for the gene associated with cystic fibrosis. With current technology, it is possible to determ
    12·1 answer
  • Ca
    13·1 answer
  • Electricity produced by waterpower is ____.
    14·2 answers
  • What does an urn-shaped age pyramid represent? A. a stable population growth B. a low birth rate C. a low death rate D. a growin
    8·1 answer
  • What is the difference between a marine ecosystem and a aquatic ecosystem?
    6·2 answers
  • What are the functions of the digestive system?
    9·1 answer
  • PLEASE HELP MEEEE
    12·2 answers
  • cells from the fruit fly drosophila melanogaster contain four pairs of chromosomes. what is the number of possible sets of chrom
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!