will a pair(X/Y) of 47 chromosomes humans breed a normal child?

Answer 1

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There will not be normal synapsis during zygotene of meiosis because one chromosome will not have a mate. A child may be born but the chances are that it will not be normal at all. Probably abort before birth. This is for a 47 chromosome male, and a 47 chromosome female, when the extra chromosome is an autosome.

An XXY is called a Klienfelter syndrome, sperms are usually not produced, breast development is common, voice tend to be higher pitched. The phenotype is male because of the y chromosome. Homosexuality is not mentioned.

The XXX female is sometimes fertile and can mate with a fertile XY male. There is a possibility that this female can mate with a XYY fertile male. This represents one of the few times a 47 female may mate with a 47 male and have normal children.

Answer 2

No it won't. If the child has an extra chromosome which isn't an X or Y, then he/she will almost certainly die even before birth from massive abnormalities, or shortly afterward. The only exception is an extra chromosome number 21, which produces Down's Syndrome instead of killing. An extra X chromosome (or several extra X's) produces various serious problems too, though it doesn't normally kill. The Y chromosome seems to be the only one you can have extra copies of and still be normal. That's probably because the Y contains so few genes anyway, and those it does contain have to do with things that extra copies of a gene can't mess up- sex selection, sperm production, etc.,

Answer 3

47,XYY syndrome is characterized by an extra copy of the Y chromosome in each of a male's cells. Most often, this chromosomal change causes no unusual physical features or medical problems. Males with 47,XYY syndrome are sometimes taller than average and have an increased risk of learning disabilities and delayed speech and language skills. Developmental delays and behavioral problems are also possible, but these characteristics vary widely among affected boys and men. Most males with 47,XYY syndrome have normal sexual development and are able to conceive children.

BY THE WAY: No clear evidence exists that most homosexual behaviour is biologically caused or determined, although indications exist that it may be influenced by pathological development of the hypothalamus or other brain structures. It is also concluded that homosexuals as commonly defined are statistically infrequent, primarily homosexual behaviour exists, and the majority of individuals labelled homosexuals are more properly labelled bisexual.

Answer 4

i don't think you can have 47

Answer 5

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Answer 6

I think you should rephrase your question, it doesn't make sense

Answer 7

how could they. i don't think they can.

Answer 8

no..