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cytogen > non mendelian and pattern of inheritance > Flashcards

non mendelian and pattern of inheritance Flashcards

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1
Q

affected by several loci

A

non mendelians

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2
Q

do not follow simple dominance

A

non mendelian

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3
Q

Describes the inheritance of traits linked to single genes on chromosome in nucleus

A

non mendelian

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4
Q

Describes the inheritance of traits linked to single genes on chromosome in nucleus

A

non mendelian

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5
Q

blending of trait

A

inc dominance

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6
Q

A condition when during the heterozygous condition the dominant allele does not completely
overpower the recessive allele

A

codominance / inc dominance

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7
Q

Neither allele is dominant or recessive

A

codominance

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8
Q

not blending

A

codominance

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9
Q

1:2:1

A

inc dominance

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10
Q

Dominant allele only partially mask the presence of
recessive trait

A

inc dominance

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11
Q

recessive/dominant: A

A

dominant

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12
Q

recessive/dominant: B

A

dominant

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13
Q

recessive/dominant: O

A

recessive

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14
Q

4 phenotype of abo system

A

a, b, ab, o

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15
Q

give the genotype: A

A

AA or AO

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16
Q

give the genotype: B

A

BB or BO

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17
Q

give the genotype: AB

A

AB

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18
Q

give the genotype: O

A

OO

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19
Q

amorph gene or the silent gene

A

O phenotype (does not produce any antigen)

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20
Q

Inheritance pattern for traits that are
controlled by more than one gene

A

POLYGENIC
INHERITANCE

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21
Q

There is a phenotype gradient

A

POLYGENIC
INHERITANCE

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22
Q

controlled by multiple genes

A

POLYGENIC
INHERITANCE

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23
Q

Multiple genes affects the inheritance of 1 trait

A

POLYGENIC
INHERITANCE

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24
Q

Genes capable of causing death of organism carrying them

A

lethal genes

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25
The effect on phenotype is profoundly negative and causes the organism to exhibit many disadvantageous characteristics which can lead to death
lethal genes
26
Death from genetic disease can occur at any stage of development or life.
lethal genes
27
very true in homozygous condition
lethal genes
28
disease destroying nerve cell
huntingtons disease (lethal genes)
29
associated with death
lethal genes
30
achondroplasia is an example of ?
lethal genes
31
having both achondroplasia parent, what is the chances that the offspring will die as embryos?
1:4 or 25%
32
among the survivors offspring of both achondroplasia parents, what are the chances of them having a normal height offspring
1:3 or 33%
33
among the survivors offspring of both achondroplasia parents, what are the chances of them having a achondroplasia offspring
2:3 or 67%
34
charts are used to display family relationships
pedigrees
35
depict which relatives have specific phenotypes and sometimes genotypes
pedigrees
36
under pedigrees: filled shapes
person expresses trait
37
half filled shapes
carriers
38
sex unspecified
diamond
39
roman numerals meaning
number of generation
40
arabic numerals
number of individual in a generation
41
arrow
person who prompted pedigree analysis (proband)
42
vertical broken lines
adoption
43
Interaction between alleles in heterozygotes
patterns of inheritance
44
one allele controls the phenotype
dominant
45
one parent must have the trait
dominant
46
does not skip generation
dominant
47
not expressed in heterozygotes
recessive
48
neither parent is required to have the trait since they can be heterozygous
recessive
49
autosomal ratio
If it is 50/50 ratio between men and women
50
the gene in question is located on one of the numbered chromosome or nonsex chromosome
AUTOSOMAL
51
X-Linked transmission
Transmission of traits depends on the genes in sex chromosome
52
male to male transmission is not observed
x -linked
53
One mutated copy of the gene in each cell is sufficient for a person to be affected
autosomal dominant
54
autosomal dominant transmission
MALE & FEMALE can transmit the trait to their offspring
55
in autosomal dom, if 1 affected parent how many offspring will be affected
1/2
56
autosomal dominant: both parent are affected then?
Homozygote for the dominant condition -> severe condition
57
Need 2 mutated copies of gene for it to manifest
autosomal recessive
58
Appears in MALE = FEMALE
autosomal dominant and recessive
59
in autosomal recessive, affected person can have unaffected parents (t or f )
true
60
percentage of the progeny that will be affected in autosomal recessive
25%
61
Show fewer affected individual
AUTOSOMAL RECESSIVE
62
Skipping of generation
AUTOSOMAL RECESSIVE
63
Unaffected individual can have affected offspring
AUTOSOMAL RECESSIVE
64
autosomal recessive diseases
Ex: Cystic fibrosis, Albinism
65
more common in female than male
x linked dominant
66
in x linked dom, affected father will affect (daughter or son)?
daughters
67
in x linked dom, affected mother will affect (daughter or son)?
son and daughter (50:50)
68
xlinked dominance: Severe effect in male because there is no other allele to mask its effects (t or f)
true
69
more common on males than females
x linked recessive
70
always expressed in males
x linked recessive
71
affected sons are born to affected or unaffected mother? (x linked recessive)
affected
72
male to male transmission in x -linked recessive (t or f)
false
73
some of daughters of affected father will become carrier ( tor F)
false (ALL daughters)
74
EX: Hemophilia A and G6PD
x linked recessive
75
HOLANDRIC Inheritance
y linked recessive
76
only males are affected
y linked recessive
77
it is passed from father to all sons under y linked recessive (t or f)
true
78
in y linked recessive, it does not skip generations ( true or false)
true (even though it is recessive)
79
Mutations in mitochondrial DNA
mitochondrial inheritance
80
maternal inheritance
mitochondrial inherti
81
only daughters can pass it to their children
mitochondrial
82
affect both m and f
mitochondrial

cytogen (1 decks)

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