Question

. The ribs form from the ________. a. notochord b. neural plate c. neural tube d. somites

Short answer

The correct option is d. somites .

Step-by-step solution

Sep 1. Given information

A spatial pattern of gene expression reorganizes the mesoderm into groups of cells called somites with spaces between them.

Step 2. Explanation

The correct option is d. somites .

A spatial pattern of gene expression reorganizes the mesoderm into groups of cells called somites with spaces between them.

The somites will further develop into the cells that form the vertebrae and ribs, the dermis of the dorsal skin, the skeletal muscles of the back, and the skeletal muscles of the body wall and limbs.