Which of the following statements correctly describes the chromosome theory of inheritance as it was understood in the early 20th century?
A) Individuals inherit particular chromosomes attached to genes.
B) Mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis.
C) No more than a single pair of chromosomes can be found in a healthy normal cell.
D) Natural selection acts on certain chromosome combinations rather than on genes.

Question

Quizplus · Accepted Answer

The chromosome theory of inheritance, as understood in the early 20th century, posits that Mendelian genes have specific locations (loci) on chromosomes, and these chromosomes segregate during meiosis, leading to the distribution of genetic material to offspring. This theory bridged the concepts of Mendelian genetics with the behavior of chromosomes during cell division.

Which of the Following Statements Correctly Describes the Chromosome Theory