Exam 3: Heredity and Environment

Which of the following women is most likely to conceive dizygotic twins?

If the 23rd pair of chromosomes is a(n) _____, the individual will be male.

Epigenetics means that a trait _____.

Oliver has inherited genes that put him at risk for developing diabetes, but he never develops diabetes due to a healthy diet and exercise. This example demonstrates that human characteristics, including diabetes, are _____.

Which mother is at greatest risk of having a child with a chromosomal abnormality?

If the 23rd pair of chromosomes contains one X chromosome and one Y chromosome, then the individual is male.

Which of the following women is most likely to have dizygotic twins?

The name of the full set of genes that provides the instructions for making living organisms is the _____.

An individual's genetic inheritance is called a(n) "_____."

Dizygotic twins originate from the same zygote; therefore, they have the same genotype.

Chris learned in her high school science class that a male has a(n) _____ on the 23rd pair of chromosomes.

Which of the following statements is true about alcoholism?

Genes, culture, and age all affect vision.

Oliver has inherited genes that put him at risk for developing diabetes. However, Oliver never develops diabetes due to a healthy diet and exercise. This example demonstrates that human characteristics, including diabetes, are _____.

Explain how nature and nurture can interact to result in alcoholism.

Within hours after conception, the first 23 pairs of chromosomes within the zygote _____, forming two complete sets of the genome.

After about the eight-cell stage within the zygote, cells start to _____, meaning that they take different forms and reproduce at various rates, depending on where they are located.

Most recessive genetic disorders are _____.

Research indicates that alcoholism is caused by _____.

Dr. Garcia studies how environmental factors affect gene expression-enhancing, halting, shaping, or altering the expression of genes. Dr. Garcia studies _____.