One similarity and one difference between the alkaline earth metals and the transition metals

Difference ;

1. The akali metals are softer than other metals. The akaline earth elements are mettalic elements found in the second group of periodic table. While transition elements don't exhibit variable oxidation states, and their velence electrons are only present in their outer shell.

Similarities:

1. They all have  one electron in their outer shell

Explanation:

the correct answer is sex-linked recessive.

i just took the test