Answer:
1/2.
Explanation:
The autosomal dominant trait may en defined as the trait that can express itself even in the heterozygous condition and in the homozygous dominant condition as well.
Let the B allele is responisble for the roll tongue and b is recessive allele. The woman can roll the tongue and she must have the genotype Bb because her one parents is normal. The woman married with a man with non roller ( bb). The Bb × bb cross results in the following progeny Dd, Dd ( roller), dd and dd ( non roller). The probability of the child being a roller is 1/2,
Thus, the answer is 1/2.
Both answers C. and D. are correct. Most marine animals live in pods like seals, whales, and walrus. A. is called a school of fish while B. is a colony of penguins. :(
<span>D) More pine trees would live to maturity, increasing lumber output. This is the right answer hope this helps</span>
