Can anyone answer these...?

Question

1) Whatis CO2 poisioning and how much time does it take to develop.
2) How can a DNA of a child determine his parents.

Answer 1

1] it is called hypercapnia. This occurs when the CO2 level exceeds the normal concentration, above 0.1 atm. Causes can be: being in a tightly enclosed chamber where there is no air flow or deliberate exposure to high CO2 content, such as dry ice. The most obvious symptom is redness of the skin

2] Use DNA typing, aka DNA fingerprinting. DNA fragments are compared between parents and child. Each specific fragment of an DNA of a child is at least exhibited by one of the parent IF the child the offspring of the parents.

Answer 2

1) CO2 Poisoning
Hypercapnia (from the Greek hyper = "above" and kapnos = "smoke") is a condition where there is too much carbon dioxide (CO2) in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs. Deep sea divers are subject to CO2 poisoning if they resurface too quickly or have faulty scubber equipment.
Causes
Hypercapnia is generally caused by hypoventilation, lung disease, or diminished consciousness. It may also be caused by exposure to environments containing abnormally high concentrations of carbon dioxide (usually due to volcanic or geothermal causes), or by rebreathing exhaled carbon dioxide.
It is difficult to say exactly how much time it takes one to expire. A victim can be effected by panic, blood pressure, hyperventilation, convulsions which can lead to unconsciousness.

2)Deternining ones parents, use of DNA testing...A paternity test is conducted to prove paternity, that is, whether a man is the biological father of another individual. This may be relevant in view of rights and duties of the father. Similarly, a maternity test can be carried out. This is less common, because at least during childbirth, except in the case of a pregnancy involving embryo transfer or egg donation, it is obvious who the mother is.

This can be achieved by DNA analysis of the three individuals, although older methods have included ABO blood group typing, analysis of various other proteins and enzymes, or using HLA antigens. The current techniques for paternity testing are using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). For the most part however, DNA has all but taken over all the other forms of testing.

The DNA of an individual is almost exactly the same in each and every somatic cell. Sexual reproduction brings the DNA of both parents together randomly to create a unique combination of genetic material in a new cell, so the genetic material of an individual is derived from the genetic material of their parents. This genetic material is known as the nuclear genome of the individual, because it is found in the nucleus.

Comparing the DNA sequence of an individual to that of another individual can show if one of them was derived from the other or not. Specific sequences are usually looked at to see if they were copied verbatim from one of the individual's genome to the other. If that was the case, then this proves that the genetic material of one individual could have been derived from that of the other (i.e.: one is the parent of the other). Besides the nuclear DNA in the nucleus, the mitochondria in the cells also have their own genetic material termed the mitochondrial genome. Mitochondrial DNA comes only from the mother, without any shuffling.

Proving a relationship based on comparison of the mitochondrial genome is much easier than that based on the nuclear genome. However, testing the mitochondrial genome can only prove if two individuals are related by common descent through maternal lines only from a common ancestor and is thus of limited value (for instance, it could not be used to test for paternity).

Answer 3

1)Try this http://en.wikipedia.org/wiki/Hypercapnia hypercapnia is it's technical name.
2)23 chromosomes from each parent, so half each. However, the male determines whether it is male or female.

Answer 4

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