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- Question
Which step happens first in DNA replication?
Options- A. Initiation
- B. Elongation
- C. Termination
- D. None of the above
- Correct Answer
- Initiation
ExplanationIn the first step of DNA replication called initiation, the DNA pair gets unwidened.
- 1. Which virus is not associated with cancer?
Options- A. Epstein-Barr virus
- B. Papillomavirus
- C. Retrovirus
- D. Hepatitis virus Discuss
- 2. Cellulose is a major component of the
Options- A. Pythium
- B. Pseudomonas
- C. Xanthomonas
- D. Saccharomyces Discuss
- 3. What base does guanine pair with?
Options- A. Adenine
- B. Thymine
- C. Uracil
- D. Cytosine Discuss
- 4. Why is RNA necessary to act as a messenger? Discuss
- 5. Process occurs in cytoplasm
Options- A. Glycolysis
- B. Cell division
- C. Both A & B
- D. None of the above Discuss
- 6. 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
- 7. 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
- 8. One function of sphincter muscles is to
Options- A. secrete digestive juices into the GI tract
- B. grind large food particles
- C. trigger hormone release
- D. control the passage of food through the GI tract Discuss
- 9. Self pollination will lead to
Options- A. Inbreeding
- B. Over breeding
- C. Outbreeding
- D. Rare breeding Discuss
- 10. Improving muscular strength and endurance slows bone density loss.
Options- A. TRUE
- B. FALSE Discuss
Biology problems
Search Results
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: Pythium
Correct Answer: Cytosine
Explanation:
In DNA, the chemicals are Adenine, thymine, guanine and cytosine. They always pair as basepairs like Adenine with Thymine and Guanine with Cytosine.
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: Both A & B
Correct Answer: It is secreted by the brain and acts on fat cells
Correct Answer: control the passage of food through the GI tract
Correct Answer: Inbreeding
Explanation:
Self pollination occurs in the flowers when the pollen grains of the flower falls on the stigma of the same due to wind or insects like moths and bees. This lead to the inbreeding.
Correct Answer: TRUE
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