Common questions about Gene

Short answers, pulled from the story.

When did Gregor Mendel publish his paper on inheritance?

Gregor Mendel published his paper on inheritance in 1865. The paper described how traits passed from parent to offspring in discrete units rather than through a blending of fluids.

Who coined the word gene and when was it coined?

Wilhelm Johannsen coined the word gene in 1909. Mendel called these factors elements but never used the word gene in his original work.

What is the structure of the DNA molecule discovered by James Watson and Francis Crick?

James Watson and Francis Crick published a model of the double-stranded DNA molecule in 1953. The structure reveals how the four bases adenine, cytosine, guanine, and thymine pair to form a helix.

How many base pairs does a typical mammalian protein-coding gene span?

A typical mammalian protein-coding gene spans about 62,000 base pairs. The final protein may be encoded by only a few thousand of those bases.

How many non-coding genes are estimated to exist in the human genome?

The human genome contains an estimated 26,000 non-coding genes. These genes produce functional RNA molecules rather than proteins and make up a significant portion of the genome.

Who proposed the neutral theory of evolution and when?

Motoo Kimura proposed the neutral theory of evolution in the late 1960s. The theory suggests that random genetic drift is a major player in evolution with many mutations being neutral.