After Reading the Paragraphs Below, Answer the Questions That Follow

question 31

Multiple Choice

After reading the paragraphs below, answer the questions that follow.
Mr. and Mrs. Smith have three sons in elementary school. Two of their children are progressing normally, but their youngest son, Charles, has been much slower than his siblings in developing speech and language skills. His parents are concerned that he has a learning disability and decide to investigate further. Since some learning disabilities can be genetically based, their pediatrician recommends a chromosomal analysis.
The results show that Charles has a trisomy of the sex chromosomes, diagnosed as XYY, which is caused by nondisjunction in the formation of the father's sperm. The nondisjunction resulted in an extra copy of the Y chromosome. The extra copy was passed on to Charles during fertilization. Most often, this chromosomal change causes no unusual physical features or medical problems, but those with trisomy of the sex chromosomes do have a higher than normal risk of delays in learning development.
-During which stage of meiosis could this nondisjunction have occurred?

• A)telophase I
• B)prophase I
• C)anaphase II
• D)telophase II

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Definitions:

Data Labels

In charting and graphing, data labels are small pieces of text used to represent the value of a data point, slice, or bar in a chart or graph, making the data easier to understand at a glance.

Numerical Values

Data expressed in numbers, representing quantities, measurements, or statistical information.

Chart

A visual representation of data designed to make information easily understandable at a glance.

Demote Button

A feature in hierarchical or structured applications, such as outlining or presentation software, allowing users to lower the rank or level of a selected item in a list or structure.