How Did Sam & Alex Become Closer Relatives Than Lee & Morgan?

  • Thread starter nipwoni
  • Start date
  • Tags
    alex
In summary, Sam and Alex are first cousins who are more closely related to each other than their cousins Lee and Morgan. This is because Sam's mother's identical twin sister is also Alex's mother, and Sam's father's identical twin brother is also Alex's father. Lee and Morgan are fraternal twins, while Sam and Alex resulted from incest. However, there are other possible explanations for this genetic relationship.
  • #1
nipwoni
51
0
Sam and Alex are first cousins. Lee and Morgan are twins. But Sam and Alex are more closely related to each other than are Lee and Morgan, in terms of genetics. How did this happen?
Good luck! :-p
 
Physics news on Phys.org
  • #2
---->Lee and Morgan aren't each others' siblings?<----
 
Last edited by a moderator:
  • #3
Allex' mother and father are, respectively, Sam's mother's identical twin sister and Sam's father's identical twin brother. The twins are fraternal twins, by definition could have different fathers.
 
  • #4
Fraternal twins are Lee and Morgan. Sam and Alex resulted from incest where their father impregnated both of his twin sisters. Nevertheless, I'm assuming there is more than one answer to that riddle.
 
  • #5
That wasn't the one I was thinking of, but it works!
 
  • #6
It could happen without incest.
 
  • #7
20questions, that's the answer I meant. :biggrin:
 

Related to How Did Sam & Alex Become Closer Relatives Than Lee & Morgan?

**

1. How did Sam and Alex become closer relatives than Lee and Morgan?

This can be explained through the process of genetic inheritance. Sam and Alex may share more genetic similarities due to the passing down of genes from their common ancestors. On the other hand, Lee and Morgan may have inherited different sets of genes from their ancestors, resulting in less genetic similarities between them.

2. Is it possible for two individuals to become closer relatives than others?

Yes, it is possible for two individuals to become closer relatives than others. This is known as genetic relatedness and it is determined by the amount of shared genetic material between two individuals. The closer the genetic relatedness, the closer the individuals are considered as relatives.

3. Can environmental factors play a role in determining genetic relatedness?

Environmental factors do not directly affect genetic relatedness. However, environmental factors such as diet, lifestyle, and exposure to certain substances can influence gene expression and may result in different phenotypic traits, which can affect the perception of genetic relatedness.

4. Is there a specific percentage of genetic similarity that determines close relatives?

There is no specific percentage of genetic similarity that determines close relatives. Generally, individuals who share 50% or more of their genetic material are considered as close relatives. However, this can vary depending on the context and cultural beliefs.

5. Can genetic relatedness change over time?

Yes, genetic relatedness can change over time due to mutations, genetic drift, and natural selection. These processes can alter an individual's genetic makeup and affect their relatedness to others in the population. Additionally, changes in family structures and relationships can also impact genetic relatedness between individuals.

Similar threads

Replies
8
Views
2K
  • Special and General Relativity
Replies
20
Views
2K
  • Special and General Relativity
2
Replies
35
Views
859
  • Special and General Relativity
Replies
31
Views
2K
  • Sticky
  • General Discussion
Replies
0
Views
601
  • Biology and Medical
Replies
6
Views
3K
  • Special and General Relativity
Replies
15
Views
4K
  • Special and General Relativity
Replies
24
Views
2K
Replies
5
Views
9K
Replies
1
Views
1K
Back
Top