Question

A biology teacher is grading a quiz that his or her students recently completed. Quiz question 8 reads, “Which parent determines the sex of the offspring?” The student’s response is, “The mother determines the sex of the child because she contains the X chromosome.” Write an appropriate teacher response to the student that addresses the misconception of the student and provides the correct answer.

Answer 1

teacher will say to student that he or she is wrong. Because father will be determine sex of the offspring because he contains both chromosomes X and Y. In most mammels including humans, have an XY sex-determination system: the Y chromosome carries factors responsible for triggering male development. In the absence of a Y chromosome, the fetus will undergo female development. This is because of the presence of the sex-determining region of the Y chromosome, also known as the SRY gene.[5] Thus, male mammals typically have an X and a Y chromosome (XY), while female mammals typically have two X chromosomes (XX). In humans.