Match each term with its definition. Each term or definition is used only once c
ID: 516305 • Letter: M
Question
Match each term with its definition. Each term or definition is used only once
capable of ethyl- and methyl- group removal from guanine
alkyltransferase
used to assess mutagenic capability of a substance
Ames test
whose phenotypic expression is dependent upon environmental factors
conditional mutant
may result in gene conversion
inverted repeats
one allelic is converted to its homologue as a result of recombination and subsequent repair
DNA gap repair synthesis
genetically distinct groups of cells within the same organism
genetic mosaic
double stranded DNA containing mismatched bases along its length
heteroduplex
Holliday junction movement along a DNA duplex
branch migration
sterility phenotype resulting from mass transposition of genetic elements
gene conversion
characteristic of transposable element ends
selfish DNA
presence of an excisable transposable element creates a highly breakable chromosome site
mutable site
number of mutant genes/ total number of genes within a population
mutation frequency
light-dependent DNA repair enzyme specific for ultra violet damage
photolyase
chromosomal relocation results in an alteration of gene expression
position effect
from mutant to wild type
reversion
P elements are an example
hybrid dysgenesis
purine pyrimidine
transversion
an alteration, for example, between the keto and enol forms of the DNA nucleotides
tautomeric shift
catalyses the movement of a transposable element
transposase
non-self substances that are recognized by antibodies
antigen
15/20 please help?
Match each term with its definition. Each term or definition is used only once
Question Selected Matchcapable of ethyl- and methyl- group removal from guanine
J.alkyltransferase
used to assess mutagenic capability of a substance
F.Ames test
whose phenotypic expression is dependent upon environmental factors
A.conditional mutant
may result in gene conversion
O.inverted repeats
one allelic is converted to its homologue as a result of recombination and subsequent repair
D.DNA gap repair synthesis
genetically distinct groups of cells within the same organism
P.genetic mosaic
double stranded DNA containing mismatched bases along its length
M.heteroduplex
Holliday junction movement along a DNA duplex
C.branch migration
sterility phenotype resulting from mass transposition of genetic elements
H.gene conversion
characteristic of transposable element ends
S.selfish DNA
presence of an excisable transposable element creates a highly breakable chromosome site
N.mutable site
number of mutant genes/ total number of genes within a population
L.mutation frequency
light-dependent DNA repair enzyme specific for ultra violet damage
E.photolyase
chromosomal relocation results in an alteration of gene expression
I.position effect
from mutant to wild type
G.reversion
P elements are an example
Q.hybrid dysgenesis
purine pyrimidine
T.transversion
an alteration, for example, between the keto and enol forms of the DNA nucleotides
K.tautomeric shift
catalyses the movement of a transposable element
R.transposase
non-self substances that are recognized by antibodies
B.antigen
Explanation / Answer
15. The process of conversion of a mutant back into the wild type is called Reversion. Here, when the wild type is converted into a mutant by addition of a base then in the reversion process the mutant is converted into wild type again by the removal of the base.
20. The antibodies produced by the immune system recognizes the antigens and provides immunity to the body against specific diseases.
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