Question

While studying Arabidopisis a researcher isolates a gene mutation that produces a shorter stem-hight phenotype. Interestingly, when this gene is present (wild-type plant) and the seedling is germinated at the lower temperature of 12 degrees C, the same short-stem phenotype is replicated. This phenomenon is known as:

Answer 1

Conditional inheritance is the phenomenon where a gene mutation leads to the same phenotype even under different environmental conditions. In this case, the gene mutation results in a shorter stem height, and this phenotype is replicated even at a lower temperature.

Step-by-step explanation:

The phenomenon described, where the presence of a gene mutation leads to the same phenotype even when exposed to different environmental conditions, is known as conditional inheritance. In this case, the gene mutation produces a shorter stem height phenotype, and this phenotype is replicated even at a lower temperature of 12 degrees C. This demonstrates that the expression of the gene is influenced by temperature.