EVERYDAY SCIENCE

Detailed explanation-1: -Waldeyer, noted the ability of thread-like structures in the nucleus, stained by the dye fuchsin. He coined the term from “chromo” (colour), and “soma” (body).

Detailed explanation-2: -The chromosome was first discovered by Walther Flemming. He named the thread-like structure that is present in the nucleus as chromatin in 1878. Karl Nageli observed the rod shape of chromosomes in the plant cell in 1842 and called them transitory cytoblasts, which were later identified as chromosomes.

Detailed explanation-3: -He coined in 1888 the term “chromosome” to describe them. Among his many other anatomical and embryological studies, Waldeyer became known for his pioneering research on the development of teeth and hair, many of the terms he invented are still in use today.

Detailed explanation-4: -Term ‘chromosome’ was first used by Waldeyer in 1888.

Detailed explanation-5: -He also made important contributions to our knowledge of cancer, retroperitoneal hernia and pelvic viscera, and was the first to describe the neuron theory, the ring of lymphoid tissue in the pharynx and chromosomes.