Human Heredity Principles and Issues 11th Edition
Cummings Test Bank Chapters 1 -19
mutation rate - Correct answer-the number of events that produce mutated alleles per locus per
generation
trinucleotide repeats - Correct answer-a form of mutation associated with the expansion in copy
number of a nucleotide triplet in or near a gene
mutagens - Correct answer-physical or chemical agents that cause mutations
tautomeric shift - Correct answer-spontaneously occurring reversible shifts in conformation with
nucleotide bases that may result in mutation
radiation - Correct answer-the process by which electromagnetic energy travels through space or a
medium such as air
background radiation - Correct answer-radiation in the environment that contributes to radiation
exposure
rem - Correct answer-the unit of radiation exposure used to measure radiation damage in humans. it is
the amount of ionizing radiation that has the same effect as a standard amount of x rays
, millirem - Correct answer-a rem is a measure of radiation dose equal to 1000 millirems
base analogs - Correct answer-a purine or pyrimidine that differs in chemical structure from those
normally found in dna or rna
nucleotide substitutions - Correct answer-mutations that involve replacement of one or more
nucleotides in a dna molecule with other nucleotides
How many chromosomes do humans have? - Correct answer-46 (23 pairs)
How many chromosomes do male and female gametes have? - Correct answer-23
What does meiosis produce and what does it do? - Correct answer-It produces gametes and is
responsible for reducing the number of chromosomes in sex cells.
What does meiosis yield? - Correct answer-haploid gametes, that is gametes with half the number of
chromosomes of a normal diploid body cell.
How many cell divisions does meiosis have? - Correct answer-2 cell divisions
what are the phases of meiosis - Correct answer-Prophase I, Metaphase I, Anaphase I, Telophase I,
Prophase II, Metaphase II, Anaphase II, Telophase II
When do chromosomes duplicate? - Correct answer-During interphase
What happens in prophase meiosis? - Correct answer-Chromosomes condense
Nuclear membrane disintegrates
Cummings Test Bank Chapters 1 -19
mutation rate - Correct answer-the number of events that produce mutated alleles per locus per
generation
trinucleotide repeats - Correct answer-a form of mutation associated with the expansion in copy
number of a nucleotide triplet in or near a gene
mutagens - Correct answer-physical or chemical agents that cause mutations
tautomeric shift - Correct answer-spontaneously occurring reversible shifts in conformation with
nucleotide bases that may result in mutation
radiation - Correct answer-the process by which electromagnetic energy travels through space or a
medium such as air
background radiation - Correct answer-radiation in the environment that contributes to radiation
exposure
rem - Correct answer-the unit of radiation exposure used to measure radiation damage in humans. it is
the amount of ionizing radiation that has the same effect as a standard amount of x rays
, millirem - Correct answer-a rem is a measure of radiation dose equal to 1000 millirems
base analogs - Correct answer-a purine or pyrimidine that differs in chemical structure from those
normally found in dna or rna
nucleotide substitutions - Correct answer-mutations that involve replacement of one or more
nucleotides in a dna molecule with other nucleotides
How many chromosomes do humans have? - Correct answer-46 (23 pairs)
How many chromosomes do male and female gametes have? - Correct answer-23
What does meiosis produce and what does it do? - Correct answer-It produces gametes and is
responsible for reducing the number of chromosomes in sex cells.
What does meiosis yield? - Correct answer-haploid gametes, that is gametes with half the number of
chromosomes of a normal diploid body cell.
How many cell divisions does meiosis have? - Correct answer-2 cell divisions
what are the phases of meiosis - Correct answer-Prophase I, Metaphase I, Anaphase I, Telophase I,
Prophase II, Metaphase II, Anaphase II, Telophase II
When do chromosomes duplicate? - Correct answer-During interphase
What happens in prophase meiosis? - Correct answer-Chromosomes condense
Nuclear membrane disintegrates
