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- Question
What base does guanine pair with?
Options- A. Adenine
- B. Thymine
- C. Uracil
- D. Cytosine
- Correct Answer
- Cytosine
ExplanationIn DNA, the chemicals are Adenine, thymine, guanine and cytosine. They always pair as basepairs like Adenine with Thymine and Guanine with Cytosine.
- 1. Why is RNA necessary to act as a messenger? Discuss
- 2. Process occurs in cytoplasm
Options- A. Glycolysis
- B. Cell division
- C. Both A & B
- D. None of the above Discuss
- 3. When it comes to cholesterol it is better to have
Options- A. more LDL
- B. more HDL
- C. more cholesterol
- D. a high ratio of LDL to HDL Discuss
- 4. Which statements about viruses are true?
Options- A. HIV contains reverse transcriptase.
- B. A retrovirus contains RNA.
- C. Both A & B
- D. All RNA-containing viruses are retroviruses. Discuss
- 5. Which of the following is a risk factor for osteoporosis?
Options- A. Smoking cigarettes
- B. Drinking alcohol
- C. Both A & B
- D. None of the above Discuss
- 6. Cellulose is a major component of the
Options- A. Pythium
- B. Pseudomonas
- C. Xanthomonas
- D. Saccharomyces Discuss
- 7. Which virus is not associated with cancer?
Options- A. Epstein-Barr virus
- B. Papillomavirus
- C. Retrovirus
- D. Hepatitis virus Discuss
- 8. Which step happens first in DNA replication?
Options- A. Initiation
- B. Elongation
- C. Termination
- D. None of the above Discuss
- 9. Higher doses of barbiturates result in
Options- A. Lack of emotional control
- B. Impaired thinking
- C. Both A & B
- D. None of the above Discuss
- 10. Which of the following is a feature of leptin?
Options- A. It acts primarily on the brain
- B. It is secreted by the brain and acts on fat cells
- C. It is an enzyme
- D. It is usually deficient in thin people Discuss
Biology problems
Search Results
Correct Answer: RNA acts as a messenger in between the DNA and ribosome as it transforms the genetic information from the DNA and as DNA is big and can't fit into the nuclear pores
Correct Answer: Both A & B
Explanation:
Most cellular activities will occur in the cytoplasm of the cell. Many metabolic pathways including glycolysis and process such as cell division occurs in the cytoplasm of the cell.
Correct Answer: more HDL
Explanation:
HDL stands for high-density lipoproteins.
HDL is called the "good" cholesterol because it carries cholesterol from other parts of your body back to your liver. Your liver then removes the cholesterol from your body.
Hence, when it comes to cholesterol it is better to have more HDL.
Correct Answer: Both A & B
Explanation:
The statements true about viruses are :
1. The capsid enters the host cell if the virus is enveloped.
2. Enveloped viruses bud from the host cell.
3. HIV contains reverse transcriptase.
4. A retrovirus contains RNA.
Correct Answer: Both A & B
Explanation:
Osteoporosis makes you more likely to loss bone mass and density resulting in fractures. Smoking cigarettes and drinking alcohol can lead to loss bone mass and density. Oseoporosis is more common in women than men.
Correct Answer: Pythium
Correct Answer: Retrovirus
Explanation:
In the above given options, Retrovirus is the only virus which is not associated with cancer. Here the viruses which are associated with different types of cancer. They are:
Hepatitis virus which is associated with Liver cancer
Papillomavirus which is associated with Cervical cancer
Epstein-Barr virus which is associated with Burkitt's lymphoma.
Correct Answer: Initiation
Explanation:
In the first step of DNA replication called initiation, the DNA pair gets unwidened.
Correct Answer: Both A & B
Correct Answer: It is secreted by the brain and acts on fat cells
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