Ans.
The genotype represents genetic makeup of an organism. At the time of sexual reproduction, female produces haploid gametes or ova, while male produces sperm.
According to given punnet square, female is forming two types of ova with genotype T and t. Hence, the genotype of female is Tt.
In given punnet square, T and t are showing two different alleles (alternative form) of a particular gene. An organism with two different alleles for a particular gene is called as heterozygous. Hence, according to the punnet square, the female is heterozygous.
Thus, the options). 'Tt' and 'heterozygous' are correct.