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Multiple Choice
Which of the following best describes the chromosomal basis of inheritance as discovered through Mendel's experiments?
A
Inheritance is determined by the blending of parental traits in offspring.
B
Traits are inherited independently of chromosomes.
C
Chromosomes are composed of proteins that determine inheritance.
D
Genes are located on chromosomes, and the behavior of chromosomes during meiosis accounts for inheritance patterns.
Verified step by step guidance
1
Understand that Gregor Mendel's experiments with pea plants laid the foundation for the chromosomal theory of inheritance, which explains how traits are passed from parents to offspring.
Recognize that Mendel's laws of inheritance, including the law of segregation and the law of independent assortment, describe how alleles (different forms of a gene) are distributed into gametes during meiosis.
Learn that chromosomes are structures within cells that contain DNA and proteins, and they carry genes, which are the units of heredity.
During meiosis, homologous chromosomes (pairs of chromosomes containing the same genes) separate, leading to the segregation of alleles into different gametes, which explains Mendel's observations.
The behavior of chromosomes during meiosis, including crossing over and independent assortment, accounts for the inheritance patterns observed by Mendel, supporting the idea that genes are located on chromosomes.