The question is incomplete. The complete question is:
Indicate if the conditions described would result in the development of a male or a female individual. SRY is a gene on the Y chromosome that is involved in initiating the development of the male phenotype in humans.
a) Only one X chromosome Â
b) One X chromosome and a Y chromosome with the SRY gene deleted
c) One normal X chromosome and an X chromosome with an SRY gene insertion
d) Two X chromosomes and a Y chromosome
e) An individual with only one X chromosome and a Y chromosome with an SRY gene mutation
f) Four X chromosomes and a Y chromosome
g) One each of the X and Y chromosome
a) Only one X chromosome = FEMALE
b) One X chromosome and a Y chromosome with the SRY gene deleted = FEMALE
c) One normal X chromosome and an X chromosome with an SRY gene insertion = MALE
d) Two X chromosomes and a Y chromosome = MALE
e) An individual with only one X chromosome and a Y chromosome with an SRY gene mutation = FEMALE
f) Four X chromosomes and a Y chromosome = MALE
g) One each of the X and Y chromosome = MALE
Explanation:
The SRY gene is present on the Y chromosomes of human males and serves as one of the major determinants of sex in humans. The SRY gene regulates the development of testes in the fetus. The release of testosterone from developing testes then results in the development of other male characteristics. The absence of SRY genes or the presence of a nonfunctional SRY gene would result in the development of the fetus into a female child.
Therefore, human females have two X chromosomes as the sex chromosomes and the human males have functional SRY gene present on their Y chromosomes. Insertion of the functional SRY gene to the X chromosome of the fetus would result in its development into a male child irrespective of the absence of the Y chromosome in it.
