Suppose T is dominant to t. T confers tall plant height. In a cross between a parent of unknown genotype and a Tt individual, 50% of the progeny are tall. What is the genotype of the unknown parent?
A.Tt
B.TT
C.tt
D.impossible to tell
Number of amino acid in human body?
(2zt - z² + 5t²) + (z² - 3zt + t²)
