Question 1

True or false: Weismann was the first scientist to propose the theory of natural selection alongside Darwin.

Accepted Answer

False. Alfred Russel Wallace co-proposed natural selection with Darwin. Weismann later championed and experimentally supported it.

Question 2

True or false: Weismann believed that germ cells are completely isolated from the body and unaffected by somatic changes.

Accepted Answer

True. His germ plasm theory argued hereditary material in germ cells remains separate and unchanged by the body's experiences, a cornerstone of modern genetics.

Question 3

True or false: Weismann famously said that death is an adaptation that evolved to benefit the species.

Accepted Answer

False. He argued death is a consequence of limited somatic cell division, not an adaptation. This idea was later refined by other biologists.

Question 4

True or false: August Weismann cut off mice tails for 22 generations to disprove inheritance of acquired traits.

Accepted Answer

True. He actually did this experiment, showing that no tailless mice were born, supporting his germ plasm theory against Lamarckism.

Question 5

True or false: Weismann conducted pioneering studies on aging using hydra, showing some animals are biologically immortal.

Accepted Answer

True. He observed that hydra cells constantly regenerate, leading him to propose that aging is not universal and that germ cells can be immortal.

Question 6

True or false: Weismann won the Nobel Prize in Physiology or Medicine for his germ plasm theory.

Accepted Answer

False. He never won a Nobel Prize. The prize was first awarded in 1901, and his major work predated it, but he was not recognized.

Question 7

True or false: Weismann predicted the existence of chromosomes years before they were directly observed under microscopes.

Accepted Answer

True. In the 1880s, he theorized that hereditary material was organized into discrete units (chromosomes) and even predicted meiosis, later confirmed.

Question 8

True or false: August Weismann was a vocal critic of Gregor Mendel's work and delayed its acceptance.

Accepted Answer

False. Weismann actually supported Mendel's laws after their rediscovery in 1900 and integrated them into his germ plasm theory, not opposing them.

August Weismann Trivia Questions