Genetics Quiz #2 (Gene Mutations and DNA
Repair) UPDATED ACTUAL Exam
Questions and CORRECT Answers
mutation - CORRECT ANSWER - A ______________ is a heritable change in the genetic
material - a change in the nucleotide sequence.
anywhere - CORRECT ANSWER - Mutations can and do occur ____________ on a DNA
molecule.
protein coding region - CORRECT ANSWER - If a mutation occurs in a _________________
, it can alter AA sequence, structure, and function of protein.
genetic variation - CORRECT ANSWER - Mutations are the basis of ____________ in
populations and therefore are essential to evolution.
evolve - CORRECT ANSWER - Without genetic variation, a population cannot
___________.
function of a gene - CORRECT ANSWER - Mutations can be deleterioius, advantageous, or
neutral with respect to the _______________.
loss of function - CORRECT ANSWER - Mutations in protein coding regions of genes
usually reduce or eliminate the function of the protein encoding by that gene; this type of
mutation is called a __________________ mutation.
alleles - CORRECT ANSWER - Mutations can create new ___________ and new genes, most
of which will be non-functional, but some of which may be advantageous to an organism.
germline cells - CORRECT ANSWER - ______________ are reproductive cells that give rise
to sperm and eggs.
, somatic cells - CORRECT ANSWER - _____________ are non-reproductive cells.
somatic mutations - CORRECT ANSWER - ___________ are passed on to daughter cells, but
not progeny.
germline mutations - CORRECT ANSWER - ____________ are passed on to progeny.
point mutation - CORRECT ANSWER - A __________________ is a mutation that changes
one or a few adjacent base pairs at a single location on a DNA molecule.
single gene - CORRECT ANSWER - If a point mutation occurs in a gene, then only that
______________ will be affected.
transition mutation - CORRECT ANSWER - A _______________ is a base pair substitution
from a purine to a purine or a pyramidine to a pyramindine.
transversion mutation - CORRECT ANSWER - A ________________ is a base pair
substitution from a purine to a pyramidine or a pyramindine to a purine.
base pair substitutions - CORRECT ANSWER - Transition and transversion mutations are
_______________________.
anywhere - CORRECT ANSWER - Transition and transversion mutations can a do occur
___________ in a DNA molecule.
synonymous - CORRECT ANSWER - ____________ mutations are mutations in which the
mutant codon codes for the same amino acid as the wild-type codon.
Repair) UPDATED ACTUAL Exam
Questions and CORRECT Answers
mutation - CORRECT ANSWER - A ______________ is a heritable change in the genetic
material - a change in the nucleotide sequence.
anywhere - CORRECT ANSWER - Mutations can and do occur ____________ on a DNA
molecule.
protein coding region - CORRECT ANSWER - If a mutation occurs in a _________________
, it can alter AA sequence, structure, and function of protein.
genetic variation - CORRECT ANSWER - Mutations are the basis of ____________ in
populations and therefore are essential to evolution.
evolve - CORRECT ANSWER - Without genetic variation, a population cannot
___________.
function of a gene - CORRECT ANSWER - Mutations can be deleterioius, advantageous, or
neutral with respect to the _______________.
loss of function - CORRECT ANSWER - Mutations in protein coding regions of genes
usually reduce or eliminate the function of the protein encoding by that gene; this type of
mutation is called a __________________ mutation.
alleles - CORRECT ANSWER - Mutations can create new ___________ and new genes, most
of which will be non-functional, but some of which may be advantageous to an organism.
germline cells - CORRECT ANSWER - ______________ are reproductive cells that give rise
to sperm and eggs.
, somatic cells - CORRECT ANSWER - _____________ are non-reproductive cells.
somatic mutations - CORRECT ANSWER - ___________ are passed on to daughter cells, but
not progeny.
germline mutations - CORRECT ANSWER - ____________ are passed on to progeny.
point mutation - CORRECT ANSWER - A __________________ is a mutation that changes
one or a few adjacent base pairs at a single location on a DNA molecule.
single gene - CORRECT ANSWER - If a point mutation occurs in a gene, then only that
______________ will be affected.
transition mutation - CORRECT ANSWER - A _______________ is a base pair substitution
from a purine to a purine or a pyramidine to a pyramindine.
transversion mutation - CORRECT ANSWER - A ________________ is a base pair
substitution from a purine to a pyramidine or a pyramindine to a purine.
base pair substitutions - CORRECT ANSWER - Transition and transversion mutations are
_______________________.
anywhere - CORRECT ANSWER - Transition and transversion mutations can a do occur
___________ in a DNA molecule.
synonymous - CORRECT ANSWER - ____________ mutations are mutations in which the
mutant codon codes for the same amino acid as the wild-type codon.
