Question

The genotype of the height of an organism is written as Tt. What conclusion may be drawn? 

A. The allele for height has at least two different genes 

B. There are at least two different alleles for the gene for height 

C. There are two different genes for height, each having a single allele 

D. There is one allele for height with two different forms

Answer 1

Allele are different forms of same gene. If genotype is showing Tt, it means that there are at least 2 allele for the gene of height. 

'T 'for tall height & 't ' for short height.