Question
The most common gene for color blindness is located on the X chromosome only. Color blindness is more common in men than women.
Which justifies why men are more likely than women to inherit specific characteristics such as color blindness?
Men receive only an X chromosome from their dad.
Men receive only an X chromosome from their mom.
Men receive an extra X chromosome from their dad.
Men receive an extra X chromosome from their mom.
Which justifies why men are more likely than women to inherit specific characteristics such as color blindness?
Men receive only an X chromosome from their dad.
Men receive only an X chromosome from their mom.
Men receive an extra X chromosome from their dad.
Men receive an extra X chromosome from their mom.
Answers
GPT-4o mini
The correct justification for why men are more likely than women to inherit characteristics such as color blindness, which is linked to the X chromosome, is:
**Men receive only an X chromosome from their mom.**
Here's why:
- Men have one X and one Y chromosome (XY), while women have two X chromosomes (XX).
- Since color blindness is typically caused by a recessive allele on the X chromosome, a man only needs one copy of the allele (from his mother) to be color blind, while a woman needs two copies (one from each parent) to express the trait. This means that color blindness is more common in men due to the presence of just one X chromosome.
**Men receive only an X chromosome from their mom.**
Here's why:
- Men have one X and one Y chromosome (XY), while women have two X chromosomes (XX).
- Since color blindness is typically caused by a recessive allele on the X chromosome, a man only needs one copy of the allele (from his mother) to be color blind, while a woman needs two copies (one from each parent) to express the trait. This means that color blindness is more common in men due to the presence of just one X chromosome.