who stated sudden changes in nucleotides------ and---- observed paired chromosonces in grasshoppes.
Answers
Answer:
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Explanation:
Walter Stanborough Sutton
Walter Stanborough Sutton studied grasshoppers and connected the phenomena of meiosis, segregation, and independent assortment with the chromosomal theory of inheritance in the early twentieth century in the US. Sutton researched chromosomes, then called inheritance mechanisms.
In 1902 American scientist Walter S. Sutton reported on his observations of the action of chromosomes...… … 1902–04, when the American geneticist Walter Sutton and the German zoologist Theodor Boveri demonstrated...…
In 1902, the German scientist Theodor Boveri and the American Walter Sutton, working independently, suggested that chromosomes could be shown to bear the material of heredity. ... In a series of experimental manipulations with sea urchin eggs, Boveri demonstrated that individual chromosomes uniquely impact development.
46
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.