How many alleles does a human have?

Answer 1

An allele is an alternative form of a gene (one member of a pair) that is located at a specific position on a specific chromosome. Different chromosomes contain different numbers of genes on them, and different organisms contain different numbers of chromosomes.

But for any specific gene on a specific individual organism, it will have only two alleles for each gene: one from its mother and one from its father.

Answer 2

Nobody knows yet exactly how many genes there are on any human chromosome.

Here are some recent figures:

X chromosome 1529 genes (155 million base pairs)

Y chromosome 344 genes (57 million base pairs).

However, these should be regarded as approximate while scientists work towards higher resolution sequencing and more complete interpretation.

Answer 3

Alleles are variations of a trait and there is no set number of alleles in general, however on a chromosome pairs you get one version from mon and another from dad so--- two as long as it is not a multiple allele trait.

Answer 4

The nucleus of each human cell contains 46 chromosomes.

Answer 5

46 and 23 pairs

Answer 6

Two

Answer 7

Thousands