study the karyotypes below in figures 7 - 6 and 7 - 7. notice the chromosomal errors circled on each…

study the karyotypes below in figures 7 - 6 and 7 - 7. notice the chromosomal errors circled on each karyotype that indicates turner syndrome in figure 7 - 6 and klinefelter syndrome in figure 7 - 7. practice 1 study each karyotype given below. in the blank below each karyotype, label as one of the following: normal male, normal female, down syndrome, turner syndrome, or klinefelter syndrome.

study the karyotypes below in figures 7 - 6 and 7 - 7. notice the chromosomal errors circled on each karyotype that indicates turner syndrome in figure 7 - 6 and klinefelter syndrome in figure 7 - 7. practice 1 study each karyotype given below. in the blank below each karyotype, label as one of the following: normal male, normal female, down syndrome, turner syndrome, or klinefelter syndrome.

Answer

Brief Explanations:

Turner syndrome is characterized by the presence of a single X - chromosome (XO) in females. Klinefelter syndrome is when males have an extra X - chromosome (XXY). Down syndrome is due to an extra copy of chromosome 21. Normal males have XY sex - chromosomes and normal females have XX sex - chromosomes. By examining the sex - chromosomes and the number of chromosome 21 in each karyotype, we can make the determination.

Answer:

  1. Without seeing the actual karyotypes clearly, assume the first one has XX sex - chromosomes and no extra chromosome 21: normal female.
  2. If the second one has an extra chromosome 21: Down syndrome.
  3. If the third one has an extra X - chromosome in a male (XXY): Klinefelter syndrome.