Can you determine DNA with one strand?

Answer 1

Yes!! This is a very rare trait, but it happened to Lydia Fairchild. It starts in the mother's womb when two fertilized eggs fuse, also known as chimera. Its an odd sort of twin, and you cannot visibly see the twin at all. If the fusion didn't happen the result would be fraternal twins. Basically a person who has two DNA strands is their own twin!

Answer 2

Yes it is possible. the name of the condition is known as chimera, which is the Greek word for part goat-part lion-part snake. An article of this, explaining the genetic possibility and other questions are dealt with there

http://www.thetech.org/genetics/ask.php?id=172

Answer 3

I am not certain what it is that you are asking.

The two strands of DNA that are a part of the double helix are not the same; they are complementary. Each purine is matched with a pyrimidine (A to T, G to C).

Each cell of one individual (with few exceptions) contains the same DNA, all 46 chromosomes worth, but different genes are active depending on what type of cell it is. Your skin does not use the gene that codes for amylase, an enzyme found in saliva, even though somewhere in the nucleus of a skin cell that same gene can be found.

Some 90+% or so of human DNA is the same between members of the same species, but in a single human body--We have two copies of each chromosome, two copies of every gene, and it is possible to have two copies of the same allele. The likelihood of this is not something I am prepared to preach about; however, I am certain that it varies depending on what gene you're looking at (and even what you define as a gene...).

For instance, to have type A blood, you would have either two copies of the "A" gene, or "A" and "O." "O" is recessive and is not expressed in the presence of a different allele. The former is a case in which some of the DNA may be the same, as the cistron produces the same type of protein. But this is only a possibility. Because there are often several different combinations that code for a single amino acid, there is more than one way to produce the same protein. So, even in this instance the DNA may not be "the same."

All this is dependent, of course, on what was intended by the question.

Answer 4

DNA consist of two helical strands bonded with bases