Question

In a mouse, the axis that determines the body pattern from the nose to the tip of the tail is

A. dorso-ventral
B. antero-posterior
C. right-left
D. tip-tip
E. radial-medial

Answer 1

The axis that determines the body pattern from the nose to the tip of the tail in a mouse is the antero-posterior axis, which controls the development of body plan and symmetry.

Step-by-step explanation:

The axis that determines the body pattern from the nose to the tip of the tail in a mouse is the antero-posterior axis. This axis extends from the anterior, which is the front or head of the organism, to the posterior, representing the rear or tail. Animal bodies, including those of mice, have three primary axes for symmetry: lateral-medial (left-right), dorsal-ventral (back-belly), and antero-posterior (head-feet). The antero-posterior axis controls the development of body plan and symmetry, which is demonstrated by the arrangement of genes in the genome in both fruit flies and vertebrates.