First, you introduce to the parents the importance of karyotype test, by describing its ability to detect two broad categories of abnormalities in chromosomes, (1) and (2). You provide a few examples of genetic disorders that can be caused by chromosomal abnormalities, such as (3) and (4). Some parents would like to know what is the main cause of these genetic disorders. Without going into too much detail, you explain to them that chromosomal abnormalities are usually caused by (5) in meiosis I and meiosis II, when the homologous chromosomes or sister chromatids fail to separate during meiotic cell division.

Abnormalities in Chromosomes

1. Numerical

2. Structural

3. Down Syndrome

4. Turner Syndrome

5. Disorder or Error

Explanation:

Numerical chromosome abnormalities occur due to extra or missing chromosomes.  Structural chromosome abnormalities occur due to the irregular formation or rearrangement of the chromosomal DNA, normally called translocation.  Down syndrome occurs with extra chromosomes, more than 46. Turnover syndrome results from partial or missing X chromosomes, less than 46.

answer; ///i believe the answer is (antioxidant);

i believe it is c: genes for body color and wing size are inherited separately from each parent.