Can two people have the same genetic traits?

Can two people have the same genetic traits?

For many traits, it is possible for you and others to share phenotypes that are based on different genotypes. Many factors are involved in this. Each parent contributes one allele for each gene. With some traits, the phenotype is simply based on dominance.

Do offspring have the same traits?

The phenomenon of dominant phenotypes arising from the allele interactions exhibited in this cross is known as the principle of uniformity, which states that all of the offspring from a cross where the parents differ by only one trait will appear identical.

Why would two siblings be born with different traits when they have the same parents?

The answer has to do with the fact that each parent actually has two different sets of genes. And that each parent passes only half of their genes to their child. And that the half that gets passed down is random. All of this together ensures that each child ends up with a different, unique set of genes.

What is a variation of a trait?

Individuals of a species have similar characteristics but they are rarely identical, the difference between them is called variation. Genetic variation is a result of subtle differences in our DNA?.

Is a difference in the same trait and is why siblings don’t look exactly alike?

Your genes play a big role in making you who you are. But brothers and sisters don’t look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.

Do babies look more like mom or dad?

However, several studies since then have shown that most infants resemble both parents equally. One study even suggests that in the first three days of life, the baby looks more like the mother—but she will tend to say the opposite, emphasizing the child’s resemblance to the father.

What are the personality traits of the second child?

Birth Order Personalities – The Second Child. The second born, who can also be categorized as a middle child, has many of the same personality traits of a middle child. For instance, they are both very independent and, with the more relaxed attitude of the parents, they may be a bit more adventurous.

What makes a second born different from a first born?

While the first born, who is a female, may develop traits usually associated with the second born, such as feeling the need to be more aggressive or competitive with her younger sibling in order to gain the approval of her parents.

Can a second born child feel insecure?

The middle or second born child often have a feeling of not belonging to the group. Being in the middle can make the second child feel insecure. They may lack the drive and motivation that is so prevalent in the first born. The second child may instead look to the first born for direction.

Can a second born be more aggressive than a first born?

Sibling rivalry may be more intense between the first born and second born, especially if they are close in age. Second born children, especially in larger families, may be more aggressive and even a bit more rebellious. Exceptions to the birth order theory can be made when the first born and second born are different genders. Here’s an example:

https://www.youtube.com/watch?v=CjfI3GPHQTo