Child development
Read the article than answer these 3 questions.
here’s the link to the article.
http://www.apa.org/monitor/apr04/second.aspx
What is the possible flaw in the assumption made by twin research that identical and fraternal twins who are raised in the same home have the same environment?
Despite the limitations of twin research, how are twin studies useful?
Which type of genetic study is expected to add to what we learn from twin studies in
the future?
Understanding Chromosomal Abnormalities
Please review the following link and article at the March of Dimes website, then answer the following 4 questions.
http://www.marchofdimes.com/Baby/birthdefects_chromosomal.html
How many children in the United States are born with a chromosomal abnormality?
What causes chromosomal abnormalities, and what happens to most embryos with the
wrong number of chromosomes?
Do all children with the same chromosomal abnormality have the same
characteristics?
If one of your children has a chromosomal abnormality, will all of your other children
have the same condition?
Sample Solution
Child development
Twin studies are studies conducted on identical or fraternal twins and they aim to reveal the importance of environmental and genetic influences for traits, phenotypes, and disorders. Twin studies fail to separate the effects of genes and the prenatal environment. This failure casts doubt on claims of the relative effects of genes and environment on intelligence, psychiatric disorders, personality and other psychological variables, and other conditions. Twin studies allow researchers to examine the overall role of genes in the development of a trait or disorder. It allows disentanglement of the shared genetic and environmental factors for the trait of interest. Researchers can estimate the proportion of variances in a trait attributed to genetic variation versus the proportion that is due to shared environment or unshared environment.
