34. With a microscope, you examine some somatic cells from a woman and notice that each nucleus has two Barr bodies. What can you infer about the in this individual?
a. She is XXb. She is XXY but the Y chromosome lacks the SRY genec. She is XXXXd. She is XXXe. None of the above
35. Gene A is normally found on chromosome number 15 in humans. If amniocentesis reveals fetal cells containing gene A on chromosome 17, but not 15, the best explanation would be that:
36. It is proposed that a certain disorder affecting the inner ear is caused by mitochondrial DNA. Which of the following observations would be the most decisive evidence against this idea?
37.38. A sample of DNA is composed of 14% Cytosine. How much Thymine is present in the sample?