The disease caused by deficiency of vitamin C is: MCQ with Answer and Explanation

Explanation:
A test cross is used to determine the genotype of an individual expressing a dominant phenotype by crossing it with a homozygous recessive individual. The resulting phenotypic ratios reveal whether the dominant individual is homozygous (all offspring dominant) or heterozygous (1:1 ratio). It is a valuable tool in genetic analysis.

Explanation:
Louis Pasteur, a French microbiologist, is famous for several groundbreaking contributions. He developed the process of pasteurization (heating liquids to kill harmful microbes). He also conclusively disproved the theory of spontaneous generation using his famous swan-neck flask experiment, demonstrating that life only arises from pre-existing life (biogenesis). He also developed vaccines for rabies and anthrax.

Explanation:
The pleura is a double-layered serous membrane surrounding each lung; the visceral pleura adheres to the lung surface, and the parietal pleura lines the chest wall. The space between them contains pleural fluid, reducing friction during breathing. Pericardium surrounds the heart, peritoneum lines the abdominal cavity, meninges cover the brain and spinal cord.