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Biology > Test 2 BT's Version A > Flashcards

Test 2 BT's Version A Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q
  1. Trisomy 21 causes:
A

Down syndrome

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2
Q
  1. Among extraembryonic membranes as the first one c…
A

Right answer -> Chorion (outermost Layer)

Yolk sac

Allantois

Amnion- (innermost layer)

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3
Q
  1. In the notochord formation, the neuroenteric canal …
A

Is the transition between the amniotic and yolk sac cavities.

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4
Q
  1. Achondroplasia is inherited as:
A

Autosomal dominant trait

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5
Q
  1. Cell migration and differentiation in the process
A

FGF8

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6
Q
  1. Somites develop from:
A

Paraxial mesoderm

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7
Q
  1. Tetrasomy 48, XXXY causes:
A

Klinefelter syndrome

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8
Q
  1. All of the foregut endoderm has the potential to exp… differentiate into the liver tissue, but this expression is i… surrounding tissues. The action of these inhibitors is blocked by:
A

Hepatocyte nuclear transcription factors (HNF3 and 4)

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9
Q
  1. Is the kidney development the process of branching and gro.. stimulated by:
A

GDNF

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10
Q
  1. A critical role in regulating HOX genes expressions is brain dev…
A

Retinoic acid

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11
Q
  1. Indicate the transcription factor specifying the duodenum
A

PDX1

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12
Q
  1. Development of the hypothalamus is regulated by:
A

DAX1

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13
Q
  1. Mesoderm will be ventralized to contribute to kidneys, b.. the presence of:
A

BMP4

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14
Q
  1. The enamel of the teeth develops from:
A

Ectoderm

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15
Q
  1. Listed below cells are neural crest derivation, expect:
A

Hepalocytes

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16
Q
  1. Indicate the repressor for left-sided gene expression o…
A

SSH

17
Q
  1. A group of anomalies occurring together that have… called:
A

Syndrome

18
Q
  1. Indicate natural inhibitors of heart development:
A

NKX25

19
Q
  1. In the diagram are shown changes in the hormone.. menstrual cycle. This hormone is:
A

Estragiol is highest before ovulation, in the follecular phase

Progestorone is highest in luteal phase which is after ovulation

LH is highest in ovulation while SFH is lowest

20
Q
  1. Indicate a primary brain vesicle
A

Prosencephalon

21
Q
  1. In the scheme of primary ovary follicle with the arrow indicated
A

Theca externa

22
Q
  1. Dorsal/ventral pattering of the neural tube is controlled by:
A

BMP4 and 7

23
Q
  1. In the process of somite differentiation expression of the muscle specific.. induced by:
A

FGF

24
Q
  1. Taking into consideration chemical structure of estrogens you count… among:
A

Steroids

25
Q
  1. Marfan syndrome is caused by mutations in the gene encoding:
A

Fibryllin (FBN1)

26
Q
  1. Indicate the gene important for designating the forebrain and midbrain.
A

OTX2

27
Q
  1. Tetralogy of Fallot is caused by mutations in the gene:
A

NKX25

Biology (6 decks)

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