If you loosen the valve too much you wont be able to determine your blood pressure because it will give a false reading
Mrna because it is the duplicate of DNA which is the main blueprint of genetic code.
The Texture And Look Of A Microscopic Object
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!