Question

Which of the three primary germ layers generates most of the cells in the developing mammalian forelimb? which germ layer generates the neural tube?

Answer 1

The mesoderm generates most of the cells in the developing mammalian forelimb, while the ectoderm is responsible for forming the neural tube.

Step-by-step explanation:

The developing mammalian forelimb is primarily generated by the mesoderm, which is one of the three primary germ layers. The mesoderm is responsible for giving rise to the muscle cells and connective tissue in the body, including those present in the limbs. For the neural tube, its formation is credited to the ectoderm, another germ layer. The ectoderm specializes in forming the nervous system as well as the epidermis and other tissues.

Direction of embryonic development such as gastrulation and organogenesis are orchestrated by the three primary germ layers: the ectoderm, mesoderm, and endoderm. Each layer has a specific role in producing various tissues, organs, and systems necessary for building a complex organism.

Answer 2

Germ layer is a primary layer of cells found in the embryo. The three primary germ layers that generate most of the cells in the developing mammalian forelimb are ectoderm, mesoderm and endoderm.
Ectoderm forms the outer component of a mammalian body such as skin, hair, etc. Endoderm forms the inner layer that comprises of the linings of digestive system, lungs and thyroid. Mesoderm is the middle layer that forms the skeletal system, heart, etc.
Neural tube is generated by the inward folding of the ectoderm. This process is called neurulation. Ectoderm also forms neural crest.