State True of False
(i) Hetrozygous female for haemophilia may transmit the disease to sons
(ii) Affected individuals with phenylketonuna lack an enzyme that converts the amino acid phenylalanine into phenylpyruvic acid
(iii) Klinefelter's syndrome is caused due to the presence of an additional copy of X-chromosome resulting into a karyotype of `47//XXX`
(iv) Failure of segregation of homologous pair of chromosomes during cell division cyclic results in Turner's syndrome.

Explanation

### Step-by-Step Solution:

**(i) Heterozygous female for hemophilia may transmit the disease to sons.**

- Hemophilia is an X-linked recessive disorder.
- A heterozygous female for hemophilia has one normal X chromosome (X) and one hemophilic X chromosome (Xh), represented as X Xh.
- When this female has children with a normal male (XY), the possible combinations of offspring are:
- XX (healthy female)
...