Which of the following led thomas hunt morgan to conclude that crossing over occurs?
genes on the same chromosome are sometimes inherited separately.

dominant linked genes often express codominance.

genes on the same chromosome are linked and inherited together.

all of the above are correct.

The answer is Genes on the same chromosome are sometimes inherited disparately.  I had the exact same question and that was the answer hope this helped! Have a good day!

Genes on the same chromosome are sometimes inherited separately.

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.

There would be one bar shorter than the bar for peaches.