Exam 2: Heredity and the Environment

A procedure used to detect genetic abnormalities in a fetus by extracting fetal cells from the amniotic fluid is called

Scientists have completed their mapping and positioning of the order of 3 billion pairs of nucleotide bases in the human genome.

Amniocentesis can be conducted after

Trisomy 21 is another name for

In Waddington's "landscape," ______________ influences the particular path that is taken during development.

Pleiotropic genes, a specific gene or group of genes, affect

The doctor explains to Rita that at her next appointment a technician will use an instrument that sends sounds waves through the abdomen to produce an image of internal structures. This technique is referred to as

Nonshared environment means

One of the primary reasons that behavior geneticists study identical twins is because they are

Twin studies make comparisons between the measurements of

During infancy, genes primarily operate in a(n) ________ manner.

Sperm can be collected and frozen and are still viable, even if thawed several years later.

The sex of the offspring depends on

Which of the following cognitive skills has the highest heritability estimate?

________ is the type of cell division that occurs when chromosomes are copied into each new cell.

The purpose of the __________________ is to map the order of every nucleotide base and locate the position of every gene in the human genome.

Which of the following laws was passed in 2008 to protect the genetic privacy of citizens?

Behavior geneticists generally estimate the heritability of IQ is about

The process of fertilization creates one cell with

All of the following traits are dominant traits EXCEPT