Exam 3: Genetic Bases of Child Development

A researcher conducts an adoption study to estimate the heritability of intelligence. If intelligence is primarily influenced by the environment, the researcher will find that

In 2004, the Canadian Assisted Human Reproduction Act specified all of the following except

Which phenotype is not associated with a single pair of genes?

Autosomal chromosomes

Gina has a genotype for average sociability. If she is in an environment where sociability is discouraged, she is likely to be below average in sociability. If she is in an environment where sociability is encouraged, she may be above average in sociability. The fact that Gina's genotype can lead to different phenotypes depending on the environment is a phenomenon referred to as

Whose opinion is best supported by the results of twin and adoption studies?

Alleles

Who is most likely to have sickle-cell anemia?

Which disorder is the least common?

The extra 21st chromosome that causes Down syndrome is

Each group of nucleotide bases that provides a specific set of biochemical instructions is called a

A passive gene-environment relation is best exemplified by

What was the source of the prenatal maternal stress examined by Quebec researchers Suzanne King and David Laplante in 2005?

Organic structures in the nucleus of a cell that contain genetic material are called

Sex chromosomes

Aletha and Frank are worried about their one-year-old baby. His eyes are almond-shaped (unlike theirs), his head seems small, and his development is slower than average-he's just now starting to sit up by himself. Which of the following disorders would you suspect their baby has?

________ are gene mutations that result in faulty instructions for protein production.

An individual who is heterozygous for eye colour would have

________ is an inherited disorder caused by an extra 21st chromosome which results in mental retardation.

Chromosomes consist of