Is there any plastid in mango seed?

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

What is the compliment dna strand to the following sequence: ttgactaggcta