arrons
arrons arrons
  • 21-08-2019
  • Biology
contestada

An extra copy of chromosome 21 in humans causes
Down syndrome
cystic fibrosis
HIV
none of the above

Respuesta :

connorkerstingowu1no
connorkerstingowu1no connorkerstingowu1no
  • 21-08-2019

Answer:

Down syndrome is when there is an extra copy of chromosome 21

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idonthaveaname18 idonthaveaname18
  • 21-08-2019
Down syndrome is the result of an extra copy of chromosome 21 in a human.
Answer Link

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