T = tall, t = shortTt and tt produce an offspring.  What is the probablility that the offspring will be tall? a100% b75% c50% d25% e0%

The question is about genetics, specifically Mendelian inheritance.

Here's how to solve it:

1. Identify the genotypes of the parents. In this case, one parent has genotype Tt (tall) and the other has genotype tt (short).

2. Draw a Punnett square. This is a 2x2 grid used to predict the genotypes of offspring from a particular cross. Label the rows with the alleles (T and t) from one parent, and the columns with the alleles (t and t) from the other parent.

3. Fill in the Punnett square. Each cell represents a possible genotype for an offspring. The genotype in each cell is determined by the row and column that intersect at that cell. In this case, the possible genotypes are Tt and tt.

4. Determine the probability of each genotype. In this case, there are two cells with genotype Tt (tall) and two cells with genotype tt (short). So, the probability of an offspring being tall (genotype Tt) is 2 out of 4, or 50%.

So, the correct answer is c50%.