Platelets and Duplication (Different questions)

[SKaminski]

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So, i'm confused about two things that just need really simple answer:

EK says thats Platelets do not contain organelles, but they do contain mitochondria. So, if an MCAT question asks me it Platelets contain mitochondria my answer is? Yes?

Also, my understanding of Chromosomal Duplication from Exam Krackers is that a segment of chromosome breaks off from a chromosome (aka: deletion) and then attaches to another chromosome. My question is... doesn't duplication imply there would be two copies of the gene/segment of chromosome? Am i understanding this concept wrong?

Thanks!

 

[Francium87]

1) yes according to http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3049467/

2) there is chromosomal deletion and chromosomal duplication
chromosomal deletion: chunk of the chromosome get removed and added to a different chromosome
chromosomal duplication: replicate a segment of the chromosome and paste it somewhere else (copy and paste)

 

[SKaminski]

1) yes according to http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3049467/

2) there is chromosomal deletion and chromosomal duplication
chromosomal deletion: chunk of the chromosome get removed and added to a different chromosome
chromosomal duplication: replicate a segment of the chromosome and paste it somewhere else (copy and paste)

Thank you. I realize i completely mistyped question number 1. If i'm explicitly asked if platelets contain organelles, i'm assuming the answer is yes. Thanks for answering!