do they carry one extra crotozome the the white folks?
2006-09-07 06:36:02 · 8 answers · asked by kimberly d 1 in Education & Reference ➔ Higher Education (University +)
I'd bet the people telling you that have white skin? Maybe even shaved heads? A few brain cells short?
This is sad...
(you get my drift, no offense to bald white people in general !!)
2006-09-07 06:52:34 · answer #1 · answered by mama_bears_den 4 · 0⤊ 0⤋
No
The genetic diseases are divided into two categories: chromosomal abnormalities and gene abnormalities. Chromosomal abnormalities are caused by cells that have extra or missing chromosomes or parts of chromosomes. Gene abnormalities (gene mutations) occur when the genetic instructions stored in the DNA are altered so that the protein product coded for by the gene is less functional or nonfunctional.
Cells that have extra chromosomes or chromosomes missing are aneuploid. Two types of aneuploidy are discussed below.
Monosomy refers to a condition in which there is one chromosome is missing. It is abbreviated 2N - 1. For example, monosomy X is a condition in which cells have only one X chromosome.
A trisomy has one extra chromosome and is abbreviated 2N + 1. Trisomy 21 is an example of a trisomy in which cells have an extra chromosome 21.
Monosomies and trisomies usually result from nondisjunction during meiosis but can also occur in mitosis. They are more common in meiosis 1 than meiosis 2.
They are generally lethal except monosomy X (female with one X chromosome) and trisomy 21 (Down’s Syndrome).
Affected indivisuals have a distinctive set of physical and mental characteristics called a syndrome. For example, trisomy 21 is Down syndrome.
Oogenesis is more likely to continue than spermatogenesis when a chromosomal abnormality occurs. As a result, 80% to 90% of aneuploid (extra chromosomes or chromosomes missing) fetuses are due to errors in meiosis I of the female.
Trisomy 13 produces mental and physical retardation, skull and facial abnormalities, and defects in all organ systems. It is also associated with a cleft lip, a large, triangular nose, and extra digits.
One half die in first month; the mean survival time is 6 months.
2006-09-07 06:40:28 · answer #2 · answered by god knows and sees else Yahoo 6 · 1⤊ 1⤋
The short and simple answer to this is...
Genetically, Black ppl and white ppl are the same. You heard wrong.
Diseases like Downs Syndrome are cause by having extra chromosomes, or parts of chromosomes.
2006-09-07 06:44:55 · answer #3 · answered by Octal040 4 · 1⤊ 0⤋
What's a crotozome?
The nucleus of most human cells contains two sets of chromosomes, one set given by each parent. Each set has 23 single chromosomes--22 autosomes and an X or Y sex chromosome. A normal female will have a pair of X chromosomes; a male will have an X and Y pair.
2006-09-07 06:37:42 · answer #4 · answered by kja63 7 · 1⤊ 2⤋
what's a crotozome??? u mean chromosome.
NO. where did u hear something so absurd. carrying an extra chromosome is called Down's Syndrome, and it leads to mental & physical retardation. WHy would a black person have it? from ur question, U seem to have it!
Don't be discriminatory towards another ethnic group. U could have to face it one day.
For more on Down's Syndrome, try
http://en.wikipedia.org/wiki/Down%27s_syndrome
2006-09-07 06:42:39 · answer #5 · answered by sushobhan 6 · 1⤊ 2⤋
Nothing like that.. don't you worry.. what african americans carry extra.. is one big.... thing... that's it...
2006-09-07 07:03:51 · answer #6 · answered by juljulabie 3 · 1⤊ 1⤋
You are obviously hopelessly ignorant. Maybe you are missing a chromosome or two.
2006-09-07 06:39:43 · answer #7 · answered by notyou311 7 · 1⤊ 3⤋
Do you mean Chromosone?
2006-09-07 06:38:04 · answer #8 · answered by swtstrbry9 3 · 0⤊ 3⤋