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Multiple Choice
The chromosomal theory of inheritance states which of the following?
A
Genes are inherited as discrete units that do not interact with chromosomes.
B
Genes are located on chromosomes, and the behavior of chromosomes during meiosis accounts for inheritance patterns.
C
Traits are inherited independently of chromosomes.
D
Inheritance patterns are determined by the blending of parental traits.
Verified step by step guidance
1
Understand the chromosomal theory of inheritance, which was developed in the early 20th century. It integrates Mendelian genetics with the behavior of chromosomes during meiosis.
Recall that genes are segments of DNA located on chromosomes. This theory suggests that chromosomes are the carriers of genetic information.
During meiosis, chromosomes undergo segregation and independent assortment, which are key processes that explain Mendel's laws of inheritance.
Recognize that the correct statement is: 'Genes are located on chromosomes, and the behavior of chromosomes during meiosis accounts for inheritance patterns.' This aligns with the chromosomal theory of inheritance.
Eliminate the incorrect options: Genes do interact with chromosomes, traits are not inherited independently of chromosomes, and inheritance is not a result of blending parental traits.