practice final exam

Question 1

What is DNA isolation?

Answer 1

the extraction of DNA from viruses or cells

Question 2

Ethanol is used in the DNA isolation process because

Answer 2

it allows the precipitate to form.

Question 3

The monomers that make up DNA molecules are called

Answer 3

nucleotides

Question 4

Detergent is used in the DNA isolation process because

Answer 4

it facilitates homogenization.

Question 5

The first step in DNA isolation is called ________. It refers to the process of releasing DNA from the cells.

Answer 5

homogenization

Question 6

The complex formed by DNA and its associated proteins is called a

Answer 6

chromatin.

Question 7

In the DNA isolation process, detergent was used to

Answer 7

emulsify cellular and nuclear membranes.

Question 8

What is the definition of phenotype?

Answer 8

a characteristic of an individual that can be observed or measured

Question 9

The probability of obtaining a dominant phenotype from self-fertilization of a heterozygous individual is

Answer 9

3/4.

Question 10

If an individual is homozygous for a particular trait

Answer 10

each parent contributed the same allele for that trait.

Question 11

The most common phenotype or allele for a gene in a population is referred to as

Answer 11

the wild type.

Question 12

Which of the following is NOT a product of the light reaction?

Answer 12

carbon dioxide

Question 13

Of the visible light spectrum, the rate of photosynthesis is greatest under which color light?

Answer 13

blue

Question 14

Which best explains the role of plant pigments in photosynthesis?

Answer 14

absorbs light energy

Question 15

The oxygen produced by a plant comes most directly from

Answer 15

water.

Question 16

Photosynthesis is

Answer 16

divided into two major steps, light dependent reactions and light independent reactions.

Question 17

The reactants of photosynthesis are

Answer 17

water and carbon dioxide.

Question 18

Which of the following represents a reactant or input for the light reaction of photosynthesis?

Answer 18

water

Question 19

Among the different forms of electromagnetic radiation emitted by the sun, which form is absorbed by plants for photosynthesis?

Answer 19

visible light

Question 20

All of the following are required for the Calvin cycle except

Answer 20

water

Question 21

In order to prevent the DNA from breaking, the glass rod should be spun

Answer 21

in one direction.