AP BIOLOGY

HEREDITY

NONDISJUNCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following can a karyotype not tell you?
A
Whether someone has Down syndrome
B
Whether someone has a monosomy
C
What gender someone is
D
Whether someone has Tay-Sachs
Explanation: 

Detailed explanation-1: -Examples of conditions that cannot be detected by karyotyping include: Cystic fibrosis. Tay-Sachs disease. Sickle cell disease.

Detailed explanation-2: -A karyotype test is a type of genetic testing. It looks at the size, shape, and number of chromosomes in a sample of cells from your body.

Detailed explanation-3: -The blood test checks the levels of hexosaminidase A enzyme in the blood. The levels are low or absent in Tay-Sachs disease. Genetic testing. This test can examine the HEXA gene to identify whether there are changes that indicate Tay-Sachs disease.

Detailed explanation-4: -What aspects of the genome can and cannot be determined through karyotyping? Karyotyping can give information on a person’s sex and chromosomal disorders. It cannot give information on a person’s traits and how severe a disorder is.

There is 1 question to complete.