3SQ2 Flashcards

1
Q

What should a modern genetic counselor possess? Select all

A
  • Should have a Master’s degree in genetic counselling
  • Should have good psychosocial skills foundation
  • Should be able to interpret results of genetic analysis
  • Should be able to advise patients regarding genetic testing
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2
Q

A female patient fears having the BRCA1 gene, which of the following is the reason for genetic testing?

A

Family history of cancer

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3
Q

A male patient has a pre-diabetic status, which is the reason for genetic testing from the following?

A

Family history of multifactorial disease

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4
Q

Which does not belong to the group: Prenatal FISH, Pedigree construction, Family history assessment, Karyotyping

A

None of the above

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5
Q

BONUS: Amniocentesis is performed between _______ weeks into the pregnancy. By around this time, the developing baby is suspended in about 130ml of amniotic fluid, which the baby constantly swallows and excretes.

A

15 to 20

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6
Q

This individual (adopted) may be better used to see if _____ affects the expression of traits of siblings, except?

A

genetic inheritance

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7
Q

BONUS: In real pedigrees, further complications can arise due to i____e p______ (including age of onset) and v______ e______ of disease alleles.

A

Incomplete penetrance, variable expressivity

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8
Q

Identify the meaning of this symbol in pedigree analysis

A

No answer (deceased female)

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9
Q

Who among these physically experiences the following symbol? (Miscarriage)

A

Mother

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10
Q

Which is true of this symbol in pedigree analysis?

A
  • Symbol is seen in X-linked recessive inheritance
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11
Q

This symbol (stillbirth) represents:

A

A fetus carried to term but died before or during childbirth

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12
Q

These individuals have progeny (symbol for no children)

A

False

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13
Q

In pedigree, this individual is called (Male with arrow)

A

Proposito

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14
Q

True of the relationship here: (Consanguinity)

A
  • Increases the risk of inheritance of a recessive trait
  • Involves mating between second cousins
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15
Q

Select the proper terms for the following:

A

1) marriage line
2) line of descent
3) sibling line
4) generation number

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16
Q

Identify the mode of inheritance shown in pedigree

A

Autosomal recessive

17
Q

What is the genotype of individual 12?

A

Autosomal heterozygote (Half shaded)

18
Q

What is an example of the mode of inheritance you have previously answered?

A

Cystic Fibrosis

19
Q

Which is an example of a condition inherited in this pattern? (Mitochondrial)

A

LHON

20
Q

Which concept is correlated with the inheritance seen previously? (Mitochondrial)

A

Heteroplasmy

21
Q

C_____ m_____ increases the risk of seeing recessive trait in the family line.

A

Consanguineous Marriage

22
Q

If ____ are considerably more similar than _____ (which is found for most traits), this implies that genes play an important role in these traits more than sex or environment.

A

1-Y (monozygotic), 2-X (dizygotic)

23
Q

This kind of inheritance above (Y-linked)

A

Holandric

24
Q

Newborn screening is important in early diagnosis of i______ ____ __ m____

A

inborn errors of metabolism

25
Q

BONUS: Congenital ______ hyperplasia, a condition of affecting the walnut organs above the kidney that encompasses a group of autosomal recessive disorders, each of which involves a deficiency of an enzyme involved in the synthesis of cortisol, aldosterone, or both.

A

Adrenal

26
Q

Classical p________ which is an autosomal recessive disorder, caused by mutations in both alleles of the gene for Phenylalanine hydroxyalse (PAH), found on chromosome 12.

A

Phenylketonuria

27
Q

This autosomal disease has penetrance and is dependent on replication of CAG repeats.

A

Huntington’s Disease

28
Q

This x-linked recessive disease shows up as deep tissue bleeds after accidents and is due to absent factor 9.

A

Hemophilia B