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What is Triploidy?

What is Triploidy?. Born with 69 chromosomes 3 of every chromosome 69, +1 thru 23, XXX. How Do You Get Triploidy?. Random 3 Ways 1) 2 sperm (each with 23 chromosomes) fertilize one egg (23 chromosomes) 2) Sperm with 46 chromosomes fertilizes egg with 23 chromosomes

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What is Triploidy?

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  1. What is Triploidy? • Born with 69 chromosomes • 3 of every chromosome • 69, +1 thru 23, XXX

  2. How Do You Get Triploidy? • Random • 3 Ways • 1) 2 sperm (each with 23 chromosomes) fertilize one egg (23 chromosomes) • 2) Sperm with 46 chromosomes fertilizes egg with 23 chromosomes • 3) Sperm with 23 chromosomes fertilizes egg with 46 chromosomes

  3. Medical Problems and Features • Cleft Lip • Enlarged head • Incomplete brain development • Failure of the spinal column to close completely • Webbed fingers

  4. Treatments • None • 100% death rate • Most are naturally miscarried (99.9%) • 0.1 % are born • Death usually in a few hours

  5. Conclusion • Lethal • Random • 69 chromosomes • Most are naturally aborted (miscarried)

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