Biology Spring FE Review

A cloned animal is.

• raised in a test tube.
• genetically identical to its foster mother.
• genetically identical to the animal from which the original cell was taken.
• a transgenic organism.

The Genetic Information Nondiscrimination Act of 2008 prevents

• insurers or employers from discriminating against a person based on genetic information.
• the U.S. military from collecting DNA samples from military personnel.
• individuals from having access to their own genetic information.
• scientists from using sensitive genetic information in their research.

Which of the following statements describes the effect of GM foods on human health?

• Consuming GM foods increases a person's likelihood of getting cancer.
• Consuming GM foods decreases a person's ability to fight disease.
• Consuming GM foods leads to higher rates of obesity.
• There is no evidence to support the idea that GM foods negatively impact human health.

There is alot of money that can be made in the field of biotechnology.

• True
• False

The total chromosome number of a human male is often written as

• 23,XY.
• 46,YY.
• 46,XY.
• 46,XX.

Sex-linked recessive traits occur

• because of genes on autosomes.
• because of X-chromosome inactivation.
• more often in females than in males.
• more often in males than in females.

A set of photographs of chromosomes grouped in order in pairs is called a(an)

• genome.
• karyotype.
• autosome.
• pedigree.

The Y chromosome is

• shorter than the X chromosome because it has only half the number of genes.
• identical in size to the X chromosome.
• shorter than the X chromosome because it has only about 140 genes.
• longer than the X chromosome because it has more than 1200 genes.

In female cells, most of the genes in one of the X chromosomes are randomly switched off, forming a dense region in the nucleus called a(n)

• Barr body.
• pedigree.
• sex-linked gene.
• autosome.

What is the central dogma of molecular biology?

• RNA-->DNA-->Protein
• Protein-->RNA-->DNA
• DNA-->Protein-->RNA
• DNA-->RNA-->Protein