Male has sex chromosomes: One X + one Y
Female has sex chromosomes: Two X
So, Female must contribute by one X chromosome, but male can contribute either by X or Y, if he sends, X chromosome, then Female (Girl) will form, but if he sends Y chromosome, then Male (Boy) will form
Hope this helps!
<span>A higher developed organism will have a higher degree of specialization.</span>
Isotonic solution nothing happens to the cell it exists as it is.....in a hypotonic solution the cell will shrivel up and in hypertonic solution it will swell to the point of rupturing (aka cytolyse)
You can download answer here
tinyurl.com/wpazsebu
Carbo dioxide, water and sun's energy comes fron the outside.... energy and Oxygen molecule are produced
