Need help with Bio questions..thanks : )
2007-06-02 13:51:38 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Yes, in some genetic disorders people have extra chromosomes. If you have Down's syndrome, you have an extra chromosome # 21, so you have 47 total. If you have Klinefelter's syndrome you have an extra X chromosome, so 47 total. If you had both Down's syndrome and Klinefelter's, for example, you would have 48. Also,some individuals with Klinefelter's have 3 X chromosomes and one Y, giving them 48 total. This is extremely rare, however.
2007-06-02 13:54:31 · answer #1 · answered by karana 4 · 4⤊ 0⤋
Yes. In fact it is possible for them to have 47 chromosomes as well. Down's Syndrome suffers, for example, have three copies of chromosome 21. Another fairly common disorder is Patau Syndrome, or Trisomy 13. There are others with two X and one Y chromosome as well. So someone suffering from two of these or similar disorders would have 48 chromosomes. However, it is unlikely that that person would live long.
2007-06-02 14:00:41 · answer #2 · answered by biologist1968 2 · 2⤊ 0⤋
Yes, it is possible, but rare. Multiples of the X chromosome occur, without causing any disorders in females, but causing Kleinfelter syndrome in males. There can be 2 or 3 extra X chromosomes, resulting in 47,48 or 49 chromosomes etc. In females they are just deactivated (lionisation), leaving only one X active, as in normal 46 chromosome females.
2007-06-02 14:20:18 · answer #3 · answered by Labsci 7 · 1⤊ 0⤋
The evolution is merely an thought. specific maximum individuals have 40 six chromosomes, some have 40 seven (ends up in down syndrome), some have 40 8 and don't resemble monkeys or apes from now on than you or I. Its called xxyy syndrome. That being pronounced in our worldwide something that makes you diverse is commonly labled a affliction, and so on. possibly many "themes" are merely evolutionary tries, many have unique and suitable attrubutes..merely isn't perfected yet. notwithstanding in case you do not have self belief in evolution, you may locate all of us adapt to our environments to proceed to exist, Prokaryotic and Eukaryotic cells alike. different foodstuff for concept: vegetation have an identical cellular inner workings as us, with the addition of two unique to them.
2016-11-03 11:31:06 · answer #4 · answered by ? 4 · 0⤊ 0⤋
yes it can happen as it's a genetic disorder named down syndrome. human without disorder have 46 chromosome in this disorder parent has 21st extra chromosome ,passed to progeny if one parent has this disorder then the progeny has 47 chromosome but if other parent has this disorder too then progeny got 48 chromosomes.
2007-06-03 06:26:27 · answer #5 · answered by scorpion 2 · 0⤊ 0⤋
Yes, I think so. Down's syndrome people have an extra copy of one of the chromosomes, and there are a few people (who usually turn out to be criminals) with an XYY configuration, so if you could find someone with both conditions, there's the 48.
2007-06-02 13:56:03 · answer #6 · answered by TitoBob 7 · 2⤊ 1⤋
No, it's not possible. All body cells except for sex cells, have 46 chromosomes. Sex cells have 23 chromosomes.
2007-06-02 13:55:44 · answer #7 · answered by me 2 · 0⤊ 5⤋
yep...but they have genetic disorders...
i think down syndrome is one of them.
2007-06-02 14:36:34 · answer #8 · answered by Anonymous · 0⤊ 0⤋
no it is not plain and simple no there is apossibility where there are missing cromoznes and an extra one with an extra 18 cromozne i think u get down syndrem witch people commnly call *excuse my language* retarded
2007-06-02 13:55:30 · answer #9 · answered by feet 1 · 0⤊ 5⤋