For an offspring to dominate a recessive trait, both parents must have at least one dominant allele in their genotype.
Explanation:
The sun heats the air leading to warm air. the warm air rises thus makes the cooler air from the surroundings to replace it. This leads to creating wind . This same process applies for ocean currents.
The sun heats water which make warm water come to the surface of the ocean thus replacing it with cooler water leading to ocean currents.
The answer is sex cells or gametes
