Read the following statements and choose the correct option :

Read the following statement and choose the correct option.

Read the following statement and choose the correct option. A. The vessel cells are devoid of protoplasm. B. Vessel members are interconnected through perforations in their common walls.

Read the following statement and choose the correct option. A. The vessel cells are devoid of protoplasm. B. Vessel members are interconnected through perforations in their common walls.

Read the following statement and choose the correct option spindle fibres get attached to the kinetochore of the chromosomes during metaphase. At the end of prophase cells do not show golgi complex, endoplasmic reticulum, nucleolus and the nuclear envelope. At anaphase centromere splits but chromatids do not separate.

Read the following statements and choosed the correct option- I. Cerebellum has very convoluted surface in order to provide the additional space for more neurons. II. The medulla is connected to the spinal cord III. Medulla contains controlling centres for respiration, cardiovascular reflexes and gastric secretion.

Read the following statement and choose the correct option. A. The first heart sound (lub) is associated with the closure of both semilunar valves. The duration between the adjacent second heart sound and first heart sound is 0.3 seconds C. The cardiac output is the stroke volume multiplied by the number of heartbeats per minute.

Read the following statement and choose the correct option: I. Agrobacterium tumerfaciencs, a pathogen of several monocot plants, is able to deliver a piece of DNA known as "T-DNA". II. The tumor inducing (Ti) plasmid of Agrobacterium tumefaciens has been modified into a cloning vector, which is more pathogenic to the plants.