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Consider the following statements:
(1) Adenoviruses have single-stranded DNA genomes whereas retroviruses have doublestranded DNA genomes.
(2) Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus.
(1) Adenoviruses have single-stranded DNA genomes whereas retroviruses have doublestranded DNA genomes.
(2) Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Consider the following statements:(1) Adenoviruses have single-strande...
It is actually the opposite the statement given. Adenoviruses have double stranded DNA genomes while Retroviruses have single stranded DNA genomes. So, statement 1 is not correct.
Common cold can sometimes be caused by adenoviruses while AIDS is caused by retrovirus. So, statement 2 is correct.
Common cold can sometimes be caused by adenoviruses while AIDS is caused by retrovirus. So, statement 2 is correct.
Therefore, the correct answer is (b).
Most Upvoted Answer
Consider the following statements:(1) Adenoviruses have single-strande...
Statement 1: Adenoviruses have single-stranded DNA genomes whereas retroviruses have double-stranded DNA genomes.
Adenoviruses and retroviruses are two different types of viruses that have distinct characteristics, including the structure of their genomes.
Adenoviruses:
- Adenoviruses are a group of viruses that have double-stranded DNA genomes, not single-stranded DNA genomes as mentioned in statement 1.
- The DNA genome of adenoviruses is linear and non-segmented, meaning it is not divided into smaller pieces.
- Adenoviruses can cause a variety of illnesses in humans, including respiratory infections, conjunctivitis, and gastroenteritis.
Retroviruses:
- Retroviruses, on the other hand, have single-stranded RNA genomes, not double-stranded DNA genomes as mentioned in statement 1.
- However, retroviruses have a unique characteristic called reverse transcription, where their RNA genome is converted into DNA within the host cell.
- This DNA is then integrated into the host cell's genome and can be transcribed and translated to produce viral proteins.
- Retroviruses are responsible for several important human diseases, including AIDS (Acquired Immunodeficiency Syndrome), caused by the human immunodeficiency virus (HIV).
Conclusion:
Based on the information provided, statement 1 is incorrect. Adenoviruses have double-stranded DNA genomes, while retroviruses have single-stranded RNA genomes that are reverse transcribed into DNA.
Statement 2: Common cold is sometimes caused by an adenovirus whereas AIDS is caused by a retrovirus.
The common cold and AIDS are two distinct diseases caused by different types of viruses.
Common Cold:
- The common cold is a viral infection that predominantly affects the upper respiratory tract.
- While there are several viruses that can cause the common cold, adenoviruses are one of the many possible culprits.
- Adenoviruses can cause symptoms such as runny nose, sore throat, cough, and mild fever, among others.
AIDS (Acquired Immunodeficiency Syndrome):
- AIDS is a chronic, life-threatening condition caused by the human immunodeficiency virus (HIV), which is a retrovirus.
- HIV attacks the immune system, specifically the CD4+ T cells, and weakens the body's ability to fight off infections and diseases.
- If left untreated, HIV can progress to AIDS, which is characterized by severe immunodeficiency and the increased susceptibility to opportunistic infections and certain types of cancer.
Conclusion:
Based on the information provided, statement 2 is correct. The common cold can be caused by adenoviruses, while AIDS is caused by the retrovirus HIV.
Adenoviruses and retroviruses are two different types of viruses that have distinct characteristics, including the structure of their genomes.
Adenoviruses:
- Adenoviruses are a group of viruses that have double-stranded DNA genomes, not single-stranded DNA genomes as mentioned in statement 1.
- The DNA genome of adenoviruses is linear and non-segmented, meaning it is not divided into smaller pieces.
- Adenoviruses can cause a variety of illnesses in humans, including respiratory infections, conjunctivitis, and gastroenteritis.
Retroviruses:
- Retroviruses, on the other hand, have single-stranded RNA genomes, not double-stranded DNA genomes as mentioned in statement 1.
- However, retroviruses have a unique characteristic called reverse transcription, where their RNA genome is converted into DNA within the host cell.
- This DNA is then integrated into the host cell's genome and can be transcribed and translated to produce viral proteins.
- Retroviruses are responsible for several important human diseases, including AIDS (Acquired Immunodeficiency Syndrome), caused by the human immunodeficiency virus (HIV).
Conclusion:
Based on the information provided, statement 1 is incorrect. Adenoviruses have double-stranded DNA genomes, while retroviruses have single-stranded RNA genomes that are reverse transcribed into DNA.
Statement 2: Common cold is sometimes caused by an adenovirus whereas AIDS is caused by a retrovirus.
The common cold and AIDS are two distinct diseases caused by different types of viruses.
Common Cold:
- The common cold is a viral infection that predominantly affects the upper respiratory tract.
- While there are several viruses that can cause the common cold, adenoviruses are one of the many possible culprits.
- Adenoviruses can cause symptoms such as runny nose, sore throat, cough, and mild fever, among others.
AIDS (Acquired Immunodeficiency Syndrome):
- AIDS is a chronic, life-threatening condition caused by the human immunodeficiency virus (HIV), which is a retrovirus.
- HIV attacks the immune system, specifically the CD4+ T cells, and weakens the body's ability to fight off infections and diseases.
- If left untreated, HIV can progress to AIDS, which is characterized by severe immunodeficiency and the increased susceptibility to opportunistic infections and certain types of cancer.
Conclusion:
Based on the information provided, statement 2 is correct. The common cold can be caused by adenoviruses, while AIDS is caused by the retrovirus HIV.
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Community Answer
Consider the following statements:(1) Adenoviruses have single-strande...
It is actually the opposite the statement given. Adenoviruses have double stranded DNA genomes while Retroviruses have single stranded DNA genomes. So, statement 1 is not correct.
Common cold can sometimes be caused by adenoviruses while AIDS is caused by retrovirus. So, statement 2 is correct.
Common cold can sometimes be caused by adenoviruses while AIDS is caused by retrovirus. So, statement 2 is correct.
Therefore, the correct answer is (b).
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Consider the following statements:(1) Adenoviruses have single-stranded DNA genomes whereas retroviruses have doublestranded DNA genomes.(2) Common cold is sometime caused by an adenovirus whereas AIDS is caused by a retrovirus.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?
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