Which word describes the allele for green eyes?

B = alleles for brown eyes; g = alleles for green eyes

A. homozygous

B. dominant

C. heterozygous

D. recessive

For a given mass and constant temperature, an inverse relationship exists between the volume and pressure of a gas.

Which of the answer choices provided best defines the following statement?

A. Stefan-Boltzmann Law

B. Ideal Gas Law

C. Boyle's Law

D. Charles' Law

By which gland in the body is produced follicle-stimulating hormone (FSH), which is responsible for maturation of follicles in the ovary?

A. corpus luteum

B. ovary

C. anterior lobe of pituitary gland

D. posterior lobe of pituitary gland

Which of these make up a molecule of fat?

A. three molecules of fatty acid and one molecule of glycerol

B. one glycerol molecule and three stearic acid molecules

C. three molecules of glycerol and one molecule of fatty acid

D. one carbon, one hydrogen, and one oxygen molecule

What is the function of amylase in the body?

A. It breaks down proteins into amino acids.

B. It breaks down fat into fatty acids.

C. It breaks down starch into simpler sugars.

D. It breaks down fat into glycerol.

During inhalation, what changes occur in the diaphragm?

A. The diaphragm muscles relax, making it dome-shaped.

B. The diaphragm muscles contract or tighten and move upward.

C. The abdominal muscles contract, making the diaphragm move upward.

D. The diaphragm muscles contract or tighten and the diaphragm moves downward.

Simple covalent compounds show which of the following properties?

A. They are soluble in organic solvents e.g. ethanol.

B. They conduct electricity when molten or dissolved in water.

C. They are crystalline solids at room temperature.

D. They have high melting and boiling points.

The law of conservation of mass states that __________.

A. The total mass of all products of a chemical reaction is independent of the total mass of all the reactants. They are not related.

B. The total mass of all products of a chemical reaction is equal to the total mass of all the reactants.

C. The total mass of all products of a chemical reaction is more than the total mass of all the reactants.

D. The total mass of all products of a chemical reaction is less than the total mass of all the reactants, because some mass coverts to energy during reaction.

Gregor Mendel used pea plants to conduct experiments on genetics and heredity. He grew approximately 29,000 plants to study seven characteristics: flower color, seed texture, seed color, stem length, pod color, pod texture, and flower position. Mendel was able to demonstrate that these characteristics were passed from one generation to the next and that the offspring could inherit the characteristics from either one, or from both, of the parent plants.

Referring to the passage, tell why it was important that Gregor Mendel used a large number of plants in his experiments into genetics and heredity?

A. Pea plants are susceptible to disease, so he needed a lot of them to make sure enough would survive to adulthood to allow him to draw his conclusions.

B. With a large number of plants, he could demonstrate that the results didn't just happen by chance.

C. It wasn't important at all ?pea plants produce lots of seeds, so he planted them all to see what would happen.

D. Plants don't have as many genes as animals, so he needed more of them to study genetics properly.

Pea plants can self-pollinate (sperm and eggs both come from the same plant) or they can cross-pollinate (sperm and eggs come from different plants). Gregor Mendel used this to study heredity. He found that if he took a plant that only produced yellow peas and crossed it with a plant that only produced green peas, all the offspring would only produce yellow peas. On the other hand, if he left the offspring (all yellow pea plants) alone and let them self-pollinate, then the second generation had a ratio of 3:1 yellow to green pea plants. Thus, Mendel could demonstrate that some traits are "dominant" while others are "recessive."

Referring to this passage, what could Gregor Mendel conclude from the result of his experiment with green and yellow pea plants?

A. Green peas are a recessive trait.

B. Pea plants have carbohydrates, like starch, that are coded for by their DNA.

C. Inbreeding of pea plants causes mutations.

D. All traits come in pairs and there is always a dominant trait and a recessive trait.