Answer :
Answer: Charlie is XY, 46chromosome, 23 pairs
Explanation: Charlie has a normal male karyotype 46XY
48XXYY is an abnormal syndrome associated with tall stature but intellectual disability, developmental delays and other problems
Charlie, with a normal karyotype, has 23 chromosome pairs including one X and one Y chromosome, totaling 46 chromosomes. The normal karyotype does not include a combination of two X chromosomes and two Y chromosomes.
Charlie has a normal karyotype. The correct answers to the question are as follows:
- A. He has one X chromosome and one Y chromosome -- this is characteristic of a normal male karyotype.
- B. 23 chromosome pairs -- this is the total number of chromosome pairs in a normal human karyotype.
- C. 46 chromosomes -- this is the total number of chromosomes in a normal human karyotype.
The incorrect answer is:
- D. Two X chromosomes and two Y chromosomes -- this configuration does not represent a normal human karyotype as it contains too many sex chromosomes.
A normal human karyotype consists of 22 pairs of autosomes and 1 pair of sex chromosomes. For males, the sex chromosomes are one X and one Y (XY), while for females, they are two X chromosomes (XX).
The correct question is:
Charlle has a normal karyotype. (Choose all the answers that apply)
A. He has one x chromosome one y chromosome
B. 23 chromosome pairs
C. 46 chromosomes
D. two x chromosomes two Y chromosomes​
