Nokea
Cereal protein are deficient in,
- A. Methionine
- B. Lysine
- C. Typtophan
- D. Leucin
Correct Answer: B
Rationale: Cereal proteins are typically deficient in lysine, an essential amino acid.
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validity stands for.
- A. accuracy
- B. reliability
- C. consistency
- D. all
Correct Answer: A
Rationale: Validity refers to how accurately a method measures what it is intended to measure.
Describe the significance for epidemiology of associating the environment with disease causality.
- A. It helps identify environmental risk factors.
- B. It proves that diseases are not contagious.
- C. It eliminates the need for clinical trials.
- D. It supports genetic research.
Correct Answer: A
Rationale: Linking the environment to disease causality allows for targeted public health interventions to reduce exposure to harmful factors.
What type of disease is rabies?
- A. Zoonotic
- B. Non-infectious
- C. Vector-borne
- D. Foodborne
Correct Answer: A
Rationale: Rabies is a zoonotic disease transmitted from animals to humans.
The dose of toxin that is lethal to half of the population is known as..
- A. LD50
- B. L50
- C. D50
- D. LD
Correct Answer: A
Rationale: LD50 refers to the lethal dose required to kill 50% of a population, commonly used in toxicology studies.
The vector responsible for leishmaniasis is:
- A. mosquito
- B. bugs
- C. tsetse flies
- D. sandflies
Correct Answer: D
Rationale: Sandflies are the vectors responsible for transmitting leishmaniasis.