Question
If a tall plant (TT) is crossed with a short plant (tt), what percentage of the offspring will be short?
0%
25%
75%
100%
0%
25%
75%
100%
Answers
GPT-4o mini
In a typical Mendelian inheritance scenario, if we assume that tall (T) is dominant and short (t) is recessive, a cross between a homozygous tall plant (TT) and a homozygous short plant (tt) can be represented as follows:
- Parental genotypes: TT (tall) x tt (short)
When you perform the Punnett square for this cross, all offspring will inherit one T allele from the tall parent and one t allele from the short parent. Therefore, the genotype of all offspring will be Tt (tall).
Since T is dominant, the phenotype of all the offspring will be tall.
Thus, the percentage of the offspring that will be short is **0%**.
- Parental genotypes: TT (tall) x tt (short)
When you perform the Punnett square for this cross, all offspring will inherit one T allele from the tall parent and one t allele from the short parent. Therefore, the genotype of all offspring will be Tt (tall).
Since T is dominant, the phenotype of all the offspring will be tall.
Thus, the percentage of the offspring that will be short is **0%**.