Help me plz The family tree below shows the trait of having attached earlobes. Having
attached earlobes is recessive, and having detached earlobes is dominant.
People with attached earlobes are shaded in.
I.
A
II.
III.
D
a) Describe the sex and characteristics of the person labeled A. (1 point)

The correct answer is - male and have recessive genotype with the attached earlobe.

Explanation:

In this given pedigree of the family with the trait of the attached earlobe where attached earlobe a recessive trait shown as shaded in. In pedigree males are represented by a square and females are represented by a circle. Filled in square or circle represent that the individual has a particular trait.

The person labeled A is represented in a filled-in square box which means A is male with the trait of attached earlobes.

Person A is a male with attached earlobes.

Explanation:

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation