Which of the following scientific achievements
best represents a collaborative effort among
scientists?
O Gregor Mendel's study of pea plants enabled Thomas Morgan to become the
first to locate a gene on a chromosome in Drosophila.
O Anton van Leeuwenhoek invented the microscope in the 1600s, which was later
used by others to study cells.
Robert Koch studied infectious diseases, and Louis Pasteur demonstrated that
life only comes from life.
Francis Crick and James Watson worked together to design the double-helix
model of DNA
