The correct answer is option A- HIV virus.
HIV virus is an example of enveloped virus, that has the ability to infect a host cell by attaching itself to it and fusing with the host cell. Once infected, the virus leaves the host cell and moves to another cells to infect them. The HIV virus contains glycoprotein spikes to attach to the host cell.
Explanation:
Most of Earth's carbon is stored in rocks and sediments.
Answer:
The frequency of the recessive allele. Answer: Since we believe that the homozygous recessive for this gene (q2) represents 4% (i.e. = 0.04), the square root (q) is 0.2 (20%).
The frequency of the dominant allele. Answer: Since q = 0.2, and p + q = 1, then p = 0.8 (80%).
The frequency of heterozygous individuals.
Explanation:
The main solutions of air pollutions are;
1. We have to use the vehicles which run through compressed natural gas
2. We have to use geo thermal, solar,wind energies to prevent air pollution
3. Use car pooling to reduce pollution
