Questions

• Two Indian companies, Tata SteelBSE and Wipro have been named in the list of world’s most ethical companies by American think tank Ethisphere Institute.

• Ethisphere honors those companies who recognize their role in society to influence and drive positive change in the business community and organizations around the world.

• In 2017, 124 honorees were spanning five continents, 19 countries, and 52 industry sectors.

• Wipro is one of the two information technology companies named in the list, the other being Xerox Corporation.

We know that, preceeded means to come before. 

Hence, the given sentence, preceded in death means that person had died before this person.

For example :: Rahul preceeded Ravi in death, means Rahul died before Ravi.

Genetic drift or allelic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling and chance.

When is genetic drift a major factor in evolution is

* When there is low gene flow.

* When there is no selective pressure.

* When there is a bottleneck.