Answer: a. True
Explanation: These postulates were formulated by Robert Koch as a result of his experiments with healthy and infected mice. The postulates are often used to determine if a phatogen causes a disease. These are:
- The pathogen must be present in sick individuals but not in healthy ones.
- The pathogen must be isolated from individuals and cultivated in a pure culture.
- The pathogen cultivated must cause sickness when it's injected in suceptible inviduals.
- The pathogen must be isolated from the injected individuals and must be exactly as the first one.
Answer:
1. 50%
2. ½ for both Ww and ww
Explanation:
White wings: WW, Ww
Yellow wings: ww
Ww x ww
White wing: W w
Yellow wing: w Ww ww
w Ww ww
Phenotypic ratio: Ww: ½ ww: ½
Percentage of offspring with yellow wings is 50%
Function of leucocytes or simply - White Blood Corpuscles
A. True. y'w c: C; now have good day
natural selection and common descent are the 2 ideas Darwin used to explain evolution
