# data[].attributes.body
a random error in gene replication that leads to a change

# data[].attributes.body
1. Molecular Genetics research can provide genetic tests that can reveal specific diseases or disabilities in unborn embryos.
2. All offspring that survive are most likely to pass their genes to other generations resulting in a population change over time.
3. The adaptive flexibility of humans and other animals in different environments contributes to the ability to survive and reproduce.

# data[].attributes.body
What is the promise of molecular genetics research?

The promise and goal of molecular genetics research and tests is to find genes that influence traits, such as sexual orientation, body weight, and extraversion, and to further inspect the mechanisms that dictate gene expression.

# data[].attributes.body
How do evolutionary psychologists use natural selection to explain behavior tendencies?

1. Organisms' varied offspring compete for survival.
2. Certain biological and behavioral variations increase their reproductive and survival chances in their environment.
3. Offspring that survive are more likely to pass their genes to ensuring generations.
4. Thus, over time, population characteristics may change.

# data[].attributes.body
the subfield of biology that studies molecular structure and function of genes

# data[].attributes.body
the study of the evolution of behavior and the mind, using principles of natural selection

# data[].attributes.body
the principal that, among the range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed on to succeeding generations