Search Results
Featured snippet from the web
There are four main characteristics of ethos:
Trustworthiness and respect.
Similarity to the audience.
Authority.
Expertise and reputation/history.
Ah, I'm not sure. I hope someone helps you!
nuclear envelope contains a double membrane in order to protect the nucleus.
Answer:
The correct answer is option C, that is, in the mother in meiosis II.
Explanation:
A nondisjunction in meiosis I produce all the aneuploid gametes, while nondisjunction at meiosis II produces 50 percent aneuploid gametes and the 50 percent normal gametes comprising haploid number of chromosomes.
As it is mentioned that one of the brothers possess normal number of chromosomes (46), the mother encounters nondisjunction at meiosis II resulting in the formation of one n+1 gamete exhibiting two copies of X chromosome. Fertilization of this n+1 gamete with sperm results in the creation of zygote (47, XXY).
