Is there the same exact DNA sequence in every sperm cell?

Question

Does anyone know if the dna that a sperm carries differs or is it the same dna the sperm(s) carry everytime? by differing i mean eye color, height, etc.

Answer 1

it is different!!!!

Answer 2

No.  Each chromosome in a somatic cell (all cells other than gametes, which are sperm and eggs) contains two copies of each gene.  During meiosis a single parent cell results in four genetically distinct cells, each with half the genetic information of the parent cell.  The process is someone convoluted, but the end result are gametes—sperm and eggs (ova)—each containing half of the parent's genetic information.  When a sperm and an egg come together they each contribute one copy of each gene.  In other words, you get half your genome from your mom and half from your dad.  Additionally, because the placement of one gene is not affected by the placement of others, there are more than two possible DNA sequences.  Of the billions of sperm that are produced in the lifetime of a human male, you probably could, theoretically, find two identical sperm but the odds of any two sperm from the same individual having identical DNA sequences is almost zero.

Answer 3

No.  Each normal cell essentially has 2 'copies' of everything.  Those 'copies' are not always exactly the same (that's why I'm putting the word 'copies' in quotes).  Sperm (and egg) cells are haploid, meaning they only have one copy of everything.

In the process of becoming haploid (called meiosis) all the copies get redistributed in a process called recombination, so that millions of different combinations of the single copies can occur.  This results in sperm in which few if any are ever exactly the same.

Answer 4

By DNA, you mean traits that the sperm's DNA code for. That said, no, they are different. During certain phase(s) of Meiotic division, from synapsis, the chromosomes tend to "stick together" and transfer chromosomal segments to other chromosomes, in a process called Crossing Over. When the final meiotic division is complete, forming four undeveloped sperm (before they mature ie...no flagella), each sperm, do to Crossing Over and a few other unique processes (disjunction...nondisjunction ect...) posses amazing genetic differences, adding to the variation of sexual  reproduction!

Answer 5

no of course not. every person has different dna, but even in the same person every sperm is different. you will notice that guys who have more than one kid, the kids arent exactly the same every time.

make it a good day.

Answer 6

No, because when the crosing over is happen, the DNA of partenel and maternel is exchange. At the anaphase 2, the chromosomes is split out randomly, so that the DNA that carry by the sperm is different.

Answer 7

No, they are not the same. DNA code is a sequence of chemicals that form information that control how humans are made and how they work. It is a digital code but it is not binary, but quaternary with 4 distinct items.

Every person has 46 chromasomes, 23 from the father, 23 from the mother. But the father has 46 chromasomes and so does the mother. Each sperm cell in the father gets 23 chromasomes, and similarly an egg cell gets 23 chromasomes from the mother's set of 46. For each autosome 1..22, the gamete (sperm or egg) gets one of the chromasomes, randomly, without regard to which grandparent the chromasome originally came from. For the s*x chromasomes, the egg cell gets one of the mother's X chromasomes, and the sperm gets either the X or Y from the father's chromasomes.

Chromasomes: These 6 billion odd base pairs are split amongst 46 chromasomes. Each person gets 2 pairs of chromasomes, 23 from each parent, to total 46 chromasomes per human cell. A chromasome is the largest form of a DNA molecule, with a large sequence of DNA codes, of differing lengths, usually hundreds of millions of base pairs in each chromasome. Chromasomes are independent molecules of DNA, with the typical double-helix, a start and end, but no cycles. Chromasomes are physically large enough to be seen on high power microscopes.

Answer 8

No. s*x cells are a split for of regular cells; which in turn splits the DNA but at a random sequence. So almost no sperm cell DNA are the same.