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- Question
Branch of science which deal with the study of causative agent of disease is __________
Options- A. Ecology
- B. Etiology
- C. Eugenics
- D. Euthenics
- Correct Answer
- Etiology
- 1. Flowers in which polllination takes place by insect their pollen grains are ________
Options- A. Smooth and dry
- B. Rough and sticky
- C. Rough and dry
- D. Large in Size Discuss
- 2. Five Kingdom Classification was preposed by _________
Options- A. Linnacus
- B. George Bentham
- C. Ariostotle
- D. whittaker Discuss
- 3. Mycolog is the branch of botany in which we study about
Options- A. Algae
- B. Fungi
- C. Bacteria
- D. Virus Discuss
- 4. Cretinism is due to the disorder of the glands
Options- A. Thymus
- B. Parathyroid
- C. Thyroid
- D. Adrenal Discuss
- 5. Lamarck's theory of inheritance of acquired characters was challenged by
Options- A. August Weismann
- B. Hugo de Vries
- C. Herbert Spencer
- D. Carl Linnaeus Discuss
- 6. Genes are situated on _________
Options- A. Chromosome
- B. Mitochondria
- C. Plastids
- D. Ribosomes Discuss
- 7. Human Heart is made up of
Options- A. nervous tissue
- B. cardiac muscle
- C. nonstriated muscle
- D. connective tissue Discuss
- 8. What provides electrons for the light reactions?
Options- A. Water
- B. Oxygen
- C. Carbon dioxide
- D. Light Discuss
- 9. How many Nucleotides make up a Codon?
Options- A. 3
- B. 4
- C. 5
- D. 6 Discuss
- 10. At what temperature do pathogenic bacteria grow best in food?
Options- A. 5 to 15 degrees Celsius
- B. 15 to 25 degrees Celsius
- C. 20 to 45 degrees Celsius
- D. 40 to 65 degrees Celsius Discuss
Biology problems
Search Results
Correct Answer: Rough and sticky
Correct Answer: whittaker
Correct Answer: Fungi
Correct Answer: Thyroid
Explanation:
Cretinism is a disease caused by hypothyroidism(less thyroxine formation).The symptoms of the disease are retardation of mental, physical and sexual developments. Potbellt, protruding tongue, dry skin etc are also indicative of this disease.
Correct Answer: Herbert Spencer
Explanation:
August Weismann cut off the tails of mice for 21 successive generations and still they produced generation after generation of only tailed young ones. So he concluded that acquired characters are not inherited.
Correct Answer: Chromosome
Correct Answer: cardiac muscle
Correct Answer: Water
Explanation:
Electrons are stripped from water in the light reactions of photosynthesis. Light provides the energy to excite electrons.
ATP and NADPH are both products of the light reactions and are used to power the Calvin cycle.
Correct Answer: 3
Explanation:
3 Nucleotides make up a Codon.
The nucleotide triplet that encodes an amino acid is called a codon.
Each group of three nucleotides encodes one amino acid.
Correct Answer: 20 to 45 degrees Celsius
Explanation:
The Bacteria that causes Food Borne illness are called Food Borne Pathogens. Most of the pathogens are mesophilic in nature, optimum temperature may be around 20-45 degree celsius. This range of temperatures is often called the "Danger Zone." Dry foods do not support the growth of bacteria.
In order to kill pathogenic bacteria you need temperatures above 74ºC. Temperature is the easiest factor to control in order to prevent bacterial growth.
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