Linked genes are __________.

• A. usually recessive
• B. on the same chromosome
• C. usually dominant
• D. on different chromosomes

Answer: (B)

Verified step by step guidance

1. Understand the concept of linked genes: Linked genes are genes that are located on the same chromosome and tend to be inherited together because they are physically close to each other.
2. Recognize that linked genes do not assort independently according to Mendel's law of independent assortment, which applies to genes on different chromosomes.
3. Consider the options given: 'usually recessive', 'usually dominant', 'on the same chromosome', and 'on different chromosomes'.
4. Eliminate options that do not fit the definition of linked genes. Since linked genes are defined by their physical proximity on the same chromosome, options related to dominance or recessiveness are irrelevant.
5. Identify the correct answer based on the definition: Linked genes are 'on the same chromosome'.