Describe the chromosomes need for an embryo to become a female and those needed for embryo to become a male

Gender or sex of an embryo (of a  human)  is determined and established at conception, that is the moment when an egg is fertilized by a sperm cell.  Gender is determined by the 23rd pair of  the chromosomes inherited as it is this pair that carries the X or Y chromosomes responsible for gender.

 All normal eggs from the mother have an X chromosome while usually half the sperm cells from the father have a Y (male) chromosome and the other half  have an X (female) chromosome and it is therefore  the father's sperm that dictates which gender the embryo will take.

If the egg is fertilized by a sperm with a Y chromosome then the embryo will be a genetic male due to XY chromosome combination.
If the egg is fertilized by a sperm with an X chromosome then of course the embryo will be a genetic female due to XX chromosome combination.

It starts with commitment. the health and safety policy is the commitment by the employer to provide and maintain a safe workplace. the commitment of the workforce is also a necessary component.when the workplace parties sit down to develop an ergonomic approach to patient handling, they will develop terms of reference that set forth how the health and safety committee will function in approaching this problem and reach its goal of reduced injuries.in general, a safe patient handling program will involve the following steps: management approval and commitment to develop and implement a patient handling program.perform a needs analysis.create and standardize patient assessment criteria.develop decision trees to standardize actions.determine which controls are needed to implement specific tasks or patient needs.institute a "no-lift" policy, where possible.