|
Author Question: If the 23rd chromosomal pair is XY, the zygote is female; if it is YY, the zygote is male. ... (Read 105 times) |
Did you know?
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.
Did you know?
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Did you know?
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.