Question

Embryological support for evolution proposal was disapproved on careful study performed by

• A. Oparin and Haldane
• B. Ernst Haeckel
• C. S.L. Miller
• D. Karl Ernst von Baer

Answer 1

The correct option is D Karl Ernst von Baer

Haeckel gave the biogenetic law stating “Ontogeny repeats phylogeny”. That means organisms during development repeat ancestral history. This provides embryological evidence to support evolution.

Von Bear’s law states that during embryonic development general characters appear first and the specialised ones later.
He disapproved of embryological support for evolution.

Oparin and Haldane had proposed the chemical theory for the origin of life.

Miller conducted an experiment to demonstrate the spontaneous formation of organic compounds. He circulated methane, ammonia, hydrogen and water vapour in an airtight container. Electric discharge was passed through the electrodes, and then the mixture was passed through the condenser. He observed the formation of simple organic compounds and amino acids like glycine, alanine and aspartic acid.

Hence the correct option is
b. Karl Ernst von Baer