Biology problems
- 1. Which best matches the description with the genetic material?
Options- A. Chromosomes are located in the cytoplasm.
- B. DNA is located in the nucleus.
- C. Nucleotides form a helical structure that is called a gene.
- D. Chromosomes create genes. Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk
Correct Answer: DNA is located in the nucleus.
Explanation:
DNA is the genetic material in the cell.
Hence, option B) DNA is located in the nucleus best matches the description with the genetic material.
- 3. Which of the following is not a function of saliva?
Options- A. contains fluoride to harden the tooth enamel
- B. moistens food and helps stick it together to make it easier to swallow
- C. begins the chemical breakdown of starches
- D. helps clean the mouth Also asked in: AIEEE, Bank Exams, Analyst, Bank PO
Correct Answer: contains fluoride to harden the tooth enamel
Explanation:
Saliva is produced by the salivary gland which helps in food digestion.
Option A) contains fluoride to harden the tooth enamel is not the function of saliva.
- 4. Floridian starch is characteristic energy storage material of which algae?
Options- A. Blue green algae
- B. Brown algae
- C. Red algae
- D. Green algae Also asked in: AIEEE, Bank Exams, Analyst
Correct Answer: Red algae
Explanation:
The floridian starch is reserve food materials in the red algae or the members of class Rhodophytae. It is a characteristic feature of this group.
- 6. Which best describes somatic mutations?
Options- A. transmitted to progeny
- B. not transmitted to progeny
- C. Can't be identified
- D. None of the above Also asked in: AIEEE, Bank Exams, Analyst
Correct Answer: transmitted to progeny
Explanation:
The best example for somatic mutation would be cancer, familial cancer (which transmits through gametes to the next generation) are not so common while sporadic cancer is seen the most where body cells of a particular area goes through mutations for a number of years and becomes cancerous, but it is not transmitted to next generation.
- 7. What organelle carries out photosynthesis?
Options- A. Chloroplasts
- B. Ribosomes
- C. Chromosomes
- D. All of the above Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: Chloroplasts
Explanation:
Chloroplasts contains chlorophyll, the green substance in plants that allows them to create food from carbon dioxide and water called as photosynthesis.
- 8. Most of the oxygen transported by the blood is
Options- A. bound to hemoglobin
- B. dissolved in plasma
- C. dissolved in water
- D. in ionic form as solute in plasma Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: bound to hemoglobin
Explanation:
Oxygen is transported throughout the body via hemoglobin in the red blood cells. Hence, most of the oxygen transported by the blood is bounded to hemoglobin.
- 9. Benign prostatic hyperplasia is characterized by
Options- A. Not functioning of prostate gland
- B. Enlargement of prostate gland
- C. Epididymis issue
- D. None of the above Also asked in: Bank Exams, AIEEE, Bank PO, Bank Clerk, Analyst
Correct Answer: Enlargement of prostate gland
- 10. Meiosis starts with a single diploid cell and produces 4 haploid cells.
Options- A. TRUE
- B. FALSE Also asked in: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO
Correct Answer: TRUE
Explanation:
A cell undergo meiosis, and it produces 4 haploid cells from a single diploid cell.
Hence, the given statement is true.
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