30 C
Lagos
Tuesday, February 25, 2020
Advertisement

Do Identical Twins Have The Same DNA?

Featured

How to Choose the Best HGH Supplements?

HGH supplements are the most sought out one when it comes to the body energy needs. Markets are nowadays loaded with many brands offering...

Tips to Avoid Wrinkles on Your Skin and Make it Look Graceful

The formation of wrinkles is something which comes with age. They can be noticed mainly on your face, hands, and neck. Before we get...

Trichomoniasis (Trich): Symptoms, Causes and Prevention

Many people are familiar with sexually transmitted infections, but they may not have heard of trichomoniasis also known as trich. This sexually transmitted infection...

When and How Often Should You Take CBD?

CBD can be an intricate subject, from claims to dosage, it’s easy to get overwhelmed. There are many frequently asked questions by newcomers and...

Coronary Artery Disease: Causes, Symptoms and Treatment Options

Arteries are blood vessels which carry oxygenated blood from the heart to the body tissues. Coronary artery or clogged arteries is caused when plaques...

5 Reasons Why Plastic Surgery is on the Rise

Every year more and more people undergo plastic surgery to achieve the body they dream of. While some preach body positivity and talk about...

5 Things You Need to Know About Life

A wise person once said that we only get to live once and this is why we should make the most of it. Life...

3 Dangerous Mosquito-borne Diseases and How to Protect Yourself From Them?

Mosquitos are one of the most dangerous pests in the world. This is because they're capable of spreading a variety of deadly diseases through...

5 Essential Nutrients Most People Lack in Their Diets

With more people becoming aware of the dangers of processed foods and preservatives that are commonly found in most food items, it's becoming more...

How to Protect Your Wonderful Smile While Wearing Braces?

Wearing braces can go a very long way in helping improve your smile even more. Having a perfectly aligned set of teeth helps in: ...
Avatar
Guest
This post was written by a Guest Author. Please see their details in the post above. If you'd like to Contribute towards the growth of Healthtian, please check our Contributor Page for details about how YOU can share your tips with our growing community.

There are two major ways in which twinning can result. These two ways are what gives rise to the terms, identical and non-identical twins.

Advertisement

Fraternal Twinning

For the non-identical twins, a woman produces two eggs which are each fertilized differently by different sperm from the man. Each of these fertilized eggs then continues to grow into a separate baby.

Since each of these babies started with a different egg and sperm, they have different DNA. This type of twinning is regarded as non-identical or fraternal twinning.

Each of them is just like every other person just that they shared the same womb and are born at the same time.

Identical Twinning

For the identical twins, the mother produces only one egg and it is fertilized by only one sperm. Normally this fertilized egg should continue to grow and form only one baby.

However, for reasons still being researched the fertilized egg can split into two and each half of the division continues to grow separately each into a baby.

So, the two babies are produced from one egg that is fertilized by one sperm. The babies produced by this union are known as monozygotic twins or identical twins.

A common question often asked is whether identical twins have the same deoxyribonucleic acid, DNA.

What Is DNA?

Deoxyribonucleic acid is a molecule composed of two chains that coil around each other to form a double helix carrying the genetic instructions used in the growth, development, functioning, and reproduction of all known organisms.

The genetic information in the DNA determines everything about humans, from our physical appearance as well as personality traits.

Advertisement

A Look At Monozygotic Twins

“Monozygotic twins” is the medical term for identical twins. Mono refers to one while zygote means a cell that’s formed by the fertilization of a human egg by the sperm.

So, identical twins are created when a single zygote splits into two. These two entities, each continue to divide and grow. This process is technically considered a malfunction of the normal process of development.

The two separate babies formed in this way share the same DNA, however, they aren’t exactly alike. That’s why every mother can tell her identical twin babies apart because each of them develops separately, and lives a separate life.

Are Identical Twins Completely Identical?

Identical Twins

They are not completely identical because the DNA is essentially like instructions for building the body, how each person builds that is different. It explains why identical twins have similar, but not identical fingerprints.

A lot of factors play a role in the appearance and behavior of every person, including identical twins. The environment in which each one is raised can influence a person’s physical appearance and personality.

Furthermore, as twins grow, epigenetic factors create differences between them. The epigenome describes chemical changes within DNA as individual ages.

Hence, identical twins can have different temperament, appearance, and personality.

How To Determine If Twins Are Identical?

The chances of having identical twins are about 3 in 1,000 and about one-third of all twins are monozygotic. The majority of twins are fraternal, produced when two separate sperm fertilize two different eggs.

The only way to find out if a pair of twins are identical is to perform a DNA test. DNA testing is carried out on the two people. Collecting DNA sample is quick and painless. The sample is obtained by swabbing the inside of each twin’s cheek, and then the samples are sent for analysis.

Advertisement

Thereafter, the DNA results from each individual are compared. If they are monozygotic twins, the DNA test result will be 99.99 percent similar. However, a DNA test result from non-identical twins will generally be about 50 percent to 75 percent similar.

Can Identical Twins Get Away With Crime?

Because identical twins have similar DNA, it may be nearly impossible to distinguish between these individuals when analyzing DNA in crime situations.

However, a more old-fashioned model in crime investigation actually can be used to distinguish between twins. Fingerprint evidence can help identify the criminal, even if they are identical twins. That’s because even identical twins have unique fingerprints. So, identical twin may not be able to get away with a crime.

Conclusion

Identical twins are formed from the splitting of a zygote formed from one egg and one sperm. Although they share similar DNA, it is not completely the same. The only way to identify if a pair is identical twins is to carry out DNA testing on the two of them.

Author Bio:

Guest article by Dr. Charles-Davies, a medical doctor at Brookside Medical Practice, a clinic in Lagos that specializes in family medicine and DNA testing.

More articles

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Trending now

Eating Vaginal Discharge and It’s Health Benefits

For many people, vaginal discharge is a sign that a woman is ready and willing to have sex. Vaginal fluid is a whitish fluid...

Genital Warts: Do They Go Away Naturally? What to Expect?

Human Papilloma Virus is the causative organism for genital warts. The virus is available in various strains, and it can be contacted by many...

Coronavirus – Facts, Types and Symptoms

Coronaviruses are a type of virus that mainly affects the respiratory tract of humans and other mammals. These viruses are associated with pneumonia, common...

Kinky Sex Punishment Ideas You Should Try

Is your submissive being a spoilt little brat? Are you noticing some unwanted behaviour? Do not be dismayed. Sometimes subs can be naughty, and...

Anklet Charms and Hot Wives What Do They Mean?

Women all over the world love to accessorise. From putting on necklaces to wearing makeup and buying the latest trending clothes, women are ready...

Photos of Women’s Orgasm Faces Show True Female Desire Is Nothing Like Porn

A photographer has captured women’s faces before, during and after they orgasm to lift the lid on real female sexuality. Brazilian photographer Marcos Alberti said...

How to Increase Appetite in Children Naturally?

Poor appetite is the leading cause of malnutrition in children; every child pass through this phase at a point in their lives, others make...

Skin Rashes: Causes, Symptoms and Effective Home Remedies

Skin rashes are common skin problems experienced by millions of people worldwide; it is characterized by a visible change in the color and texture...

Short Haircuts for Men in 2020

Shorts hairstyles for men are among the most popular looks because these styles are fashionable, easy to wear and appropriate for both work and...

Is Zobo Drink Healthy for Pregnant Women?

Zobo drink is a popular drink in Nigeria and it is loved by many; this common drink is made with hibiscus flower and it...

Friends