practice final exam Flashcards
What is DNA isolation?
the extraction of DNA from viruses or cells
Ethanol is used in the DNA isolation process because
it allows the precipitate to form.
The monomers that make up DNA molecules are called
nucleotides
Detergent is used in the DNA isolation process because
it facilitates homogenization.
The first step in DNA isolation is called ________. It refers to the process of releasing DNA from the cells.
homogenization
The complex formed by DNA and its associated proteins is called a
chromatin.
In the DNA isolation process, detergent was used to
emulsify cellular and nuclear membranes.
What is the definition of phenotype?
a characteristic of an individual that can be observed or measured
The probability of obtaining a dominant phenotype from self-fertilization of a heterozygous individual is
3/4.
If an individual is homozygous for a particular trait
each parent contributed the same allele for that trait.
The most common phenotype or allele for a gene in a population is referred to as
the wild type.
Which of the following is NOT a product of the light reaction?
carbon dioxide
Of the visible light spectrum, the rate of photosynthesis is greatest under which color light?
blue
Which best explains the role of plant pigments in photosynthesis?
absorbs light energy
The oxygen produced by a plant comes most directly from
water.
Photosynthesis is
divided into two major steps, light dependent reactions and light independent reactions.
The reactants of photosynthesis are
water and carbon dioxide.
Which of the following represents a reactant or input for the light reaction of photosynthesis?
water
Among the different forms of electromagnetic radiation emitted by the sun, which form is absorbed by plants for photosynthesis?
visible light
All of the following are required for the Calvin cycle except
water
In order to prevent the DNA from breaking, the glass rod should be spun
in one direction.
