The male
human has a sperm cell and the female has an egg cell. The cells from the male
and female that combine to form a zygote are called gametes. The human sperm
and egg cells each contain 23 chromosomes. . A combination of gametes forms a
zygote with 46 chromosomes. The type of cell division that produces gametes
with half the normal chromosome number is the meiosis. Meiosis is the type of
cell division used in sexual reproduction. It will occur in the testes and
ovaries.<span>Chromosomes get
shuffled when eggs and sperm are made. Though most adult cells contain two sets
of chromosomes, sperm and egg cells are different. These special cells have
just one chromosome from each pair. Which chromosome they get from each pair is
random, making each sperm or egg cell unique. There is also a bit of mixing
before the chromosomes are sorted into individual sperm or egg cells.
Chromosomes from each pair in a mother or father, respectively, make contact
and exchange pieces of DNA, creating hybrid chromosomes. </span>
<span>DNA Paternity Testing is the most advanced and accurate method available for resolving parentage for medical, legal, or personal reasons.
Turnaround Time: With advanced DNA technology, paternity testing is accurate, rapid and affordable. Paternity can now be determined 3 to 5 business days after the samples arrive at the laboratory. Results are released immediately once the testing is completed.
Description: During a DNA paternity test, a buccal swab (mouth swab) specimen is collected from the child and the alleged father. Testing the mother is optional. The sample which is collected contains cells, and most of the cells in our body contain a full set of genetic information in the form of DNA (deoxyribonucleic acid). A person's DNA represents a "genetic blueprint" and like a fingerprint, is unique to each individual. At the laboratory, the DNA is extracted from the cell and specific regions of the DNA are amplified by a process known as PCR (polymerase chain reaction) for careful examination. The DNA pattern of the child is compared to that of the alleged father. Because the genetic information of a child is inherited from his/her biological parents, examination of the DNA of the child will conclusively determine whether the alleged father is the true biological father of the child.
Who should consider the Private Test option? The private home test kit option is suitable for individuals who wish to find out the truth about paternity before deciding on the next step. If a private test is ordered, a buccal swab (mouth) swab DNA kit is sent directly to the parties involved in the test for sample collection. The sample collection process is quick, easy and discreet and takes just minutes to complete. Once the laboratory receives the samples, testing is completed within 3 to 5 business days.</span>
Nzymes are highly selective catalysts, meaning that each enzyme only speeds up a specific reaction. The molecules that an enzyme works with are called substrates. The substrates bind to a region on the enzyme called the active site. There are two theories explaining the enzyme-substrate interaction.
Answer:
O A conclusion derived from evidence and logical robsoning
Explanation:
