EVERYDAY SCIENCE

SCIENCE

GENETIC AND MENDELS LAW OF HEREDITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The suggestion that the chromosomes are the carriers of hereditary material was first made by.
A
Johannson
B
Flemming
C
Sutton and Boveri
D
Morgan
Explanation: 

Detailed explanation-1: -Sutton, who was American, studied chromosomes and meiosis in grasshoppers. Boveri, who was German, studied the same things in sea urchins. In 1902 and 1903, Sutton and Boveri published independent papers proposing what we now call the chromosome theory of inheritance.

Detailed explanation-2: -Sutton argued that chromosomes are the mechanism of how traits are passed on from parents to offspring. Furthermore, he supported Gregor Mendel’s 1865 theory of independent assortment and segregation of hereditary factors. Sutton argued that each parent passes on a half set of chromosomes to their offspring.

Detailed explanation-3: -The chromosome theory of inheritance is credited to papers by Walter Sutton in 1902 and 1903, as well as to independent work by Theodor Boveri during roughly the same period. Boveri was studying sea urchins, in which he found that all the chromosomes had to be present for proper embryonic development to take place.

Detailed explanation-4: -However, it wasn’t until the work of Thomas Hunt Morgan in the early twentieth century that researchers were finally able to directly link the inheritance of genetic traits to the behavior of chromosomes, thereby providing concrete evidence for what became known as the chromosome theory of heredity.

Detailed explanation-5: -Theodor Boveri and Walter Sutton both described the process of meiosis. They also showed that although chromosomes may look similar, they have specific hereditary qualities.

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