Good evening Qpet and thank you for the question.
According to Dr. John Bock in his class “Introduction to Biological
Anthropology” the number of unique individuals that can be produced is
70,368,744,177,664.
“Humans have 23 chromosome pairs. For any individual there are 2*23
possible combinations. Two parents can produce 70,368,744,177,664
genetically unique offspring.”
Cal State Fullerton: Anthropology 101
http://anthro.fullerton.edu/jbock/anth101/101Lecture3.htm
Generally the number is calculated in approximately 64 trillion
possible combinations of unique individuals.
Fertilization:
“The number of possible combinations of 23 maternal paternal
homologues that can result from independent assortment is 2*23, about
8 million (this leaves out variations caused by mutations or crossing
over). Fertilization brings two gametes produced in two different
individuals, which combines the variability of two different gametes.
This means that for a particular man and woman, the number of unique
combinations of genes that could occur in their offspring is 8 million
times 8 million (about 64 trillion), not counting variation caused by
crossing over and mutation.
These causes of genetic variation that result from mutations, meiosis,
and fertilization cause the phenomenon with which we are all familiar:
even in very large populations, such as the human population, every
individual is genetically unique.”
Human Biology: Lecture 32
http://www.uwyo.edu/bio1000skh/lecture32.htm
“The ovum has 8 million possible chromosome combinations, so does the
sperm cell. 8 million x 8 million = 64 trillion possible combinations.
(..)
In other words, you're unique (...just like everyone else.....)”
http://www.biology.iupui.edu/biocourses/N100H/ch9meiosis.html
Search Criteria:
23 chromosomes unique individuals +combinations
I hope you find this helpful!
Best Regards,
Bobbie7-ga |
