Question

one parent is heterozygous tall (tt) and the other is short (tt). question: what is the probability that their offspring will be tall? fill in the punnett square below to show the possible genotypes of the offspring. possible offspring genotypes a. tt--- % tt ---% b. tt --- % tt ---% c. tt---%-- tt, tt ---% d. tt---% analyze the results : which genotype(s) represent tall plants? ______ what is the probability that the offspring will be tall? ____

Explanation:

Step1: Set up Punnett square

The heterozygous tall parent (Tt) can produce two types of gametes: T and t. The short parent (tt) can only produce t - gametes. The Punnett - square will have 2 rows and 2 columns.

Step2: Fill in Punnett square

	t	t
t	tt	tt

Step3: Determine genotypes and probabilities

There are 2 Tt and 2 tt genotypes out of 4 possible offspring. So, the probability of Tt is $\frac{2}{4}=50\%$ and the probability of tt is $\frac{2}{4}=50\%$.

Step4: Identify tall - plant genotypes

Since the allele T is dominant for tallness, genotypes Tt and TT (not present in this cross but in general) represent tall plants. In this cross, the tall - plant genotype is Tt.

Step5: Calculate probability of tall offspring

The probability of an offspring being tall (genotype Tt) is 50%.

Answer:

Possible Offspring Genotypes:
A. Tt - 50%, tt - 50%
Analyze the Results:
Which genotype(s) represent tall plants? Tt
What is the probability that the offspring will be tall? 50%