The ability to roll the tongue is determined by dominant gene while the recessive gene results in the inability to roll the tongue.
a man and his wife can both roll their tongues and are surprised to find there son cannot. explain this by showing the genotype of all three persons.

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2

What is the correct trna sequence that would match the following mrna sequence.gcgaua