Question

8. When a heterozygous tall plant (TL) is self fertilised, the resulting phenotypic and genotypic ratio will
respectively,
a) 3:1& 1:21
b) 1:2:1 & 3:1 c) 3:1 & 2:1 d) 1:1 ​

Answer 1

Answer:

In a cross between heterozygous tall plants (Tt) and a homozygous dwarf plant (tt), the ratio in the offspring shall be 1 tall : 1 dwarf. This is because the heterozygous plant will make two types of gametes, one type having T allele and the other having t allele. Hence, the correct answer is ‘1 tall : 1 dwarf’

Answer 2

The answer is 3:1

hope this answer is right