Answer:
Autosomal Recessive mode of inheritance
Explanation:
If both parents can roll their tongue and their child cannot, it means they are both heterozygote for the trait and since this trait skipped a generation, it can be said to be an autosomal recessive mode of inheritance and not an autosomal dominant mode of inheritance as the later does not skip generations.
Answer:
24
Explanation:
24 mating pairs are illustrated in Model 1 .
Salt water is denser than cold water because fresh water sinks when it is in salt water.