Test 2 BT's Version C

Question 1

1. Listed below cells are nerual crest derivative, except:

Answer 1

Chondrocytes

Question 2

2. The midportion of the dorsal epithelium of the somite is directed to form dermis by

Answer 2

Neurotrophin-3

Question 3

3. In cardiac development, significant role in the process of heart septation plays

Answer 3

TBX5

Question 4

4. Trisomy 13 causes

Answer 4

Patau Syndrome

Question 5

5. If the neural tube closure fails anywhere from the cervical region caudally, the defect is called

Answer 5

Spinia Bifida

Question 6

6. In lower vertebrates as reservoir for excretory products of the renal system serves

Answer 6

Allantois

Question 7

7. Duchenne muscular dystrophy is inherited as

Answer 7

X-linked recessive trait

Question 8

8. Indicate the main source of progesterone

Answer 8

Corpus Luteum

Question 9

9. The hormone causing ovulation is released into the blood from

Answer 9

Hypothalamus (via the hypothalamo-hypophyseal portal venous system and the anterior hypophysis)

Question 10

10. The protein Smoothened is involved in

Answer 10

SHH signaling pathway

Question 11

11. Indicate the amorphous substance enveloping an oocyte in mammals

Answer 11

Zona pellucida

Question 12

12. The diagram shows alterations of hormone concentrations in peripheral blood during the menstrual cycle. With the arrow is indicated

Answer 12

LH

Question 13

13. Mesothelial membranes develop from

Answer 13

Lateral plate mesoderm

Question 14

14. The vitelline duct connects the yolk sac with

Answer 14

Midgut

Question 15

15. Indicate the gene responsible for initiation and maintenance of the primitive streak

Answer 15

Nodal

Question 16

16. Indicate the gene regulating the dorsal mesoderm formation in the middle and caudal regions of the embryo

Answer 16

Neurotrophin-3

Question 17

17. Most familial cases of Hirschsprung disease (congenital megacolon) are caused by mutations in the gene

Answer 17

RET

Question 18

18. Development of the telencephalon (cerebral hemispheres) is regulated by

Answer 18

FOXG1

Question 19

19. Indicate disease being an example of trinucleotide repeat disorders

Answer 19

Myotonic Dystrophy

Question 20

20. Indicate a primary brain vesicle

Answer 20

Rhombencephalon

Question 21

21. Achondroplasia is caused by mutations in the gene

Answer 21

FGFR3

Question 22

22. Indicate the transcription factor specifying the large intestine and rectum(inducing development of the large intestine and rectum)

Answer 22

CDXA

Question 23

23. In the kidney development, conversion of the mesenchyme to an epithelium for nephron formation is regulated by

Answer 23

Nodal

Question 24

24. Indicate receptors for proteins of the hedgehog family

Answer 24

Patched

Question 25

25. In the process of spermatogenesis, as the result of meiosis 2 are formed

Answer 25

secondary spermatocytes

Question 26

26. Disruption of crest cell development may lead to

Answer 26

Treacher Collins Syndrome

Question 27

27. Some forms of holoprosencephaly are caused by mutations in the gene

Answer 27

Notch

Question 28

28. Indicate the inhibitor of BMP in the process of neural induction

Answer 28

Noggin

Question 29

29. Taking into consideration chemical structure of estrogens you count these hormones among

Answer 29

Steroids

Question 30

30. Indicate the cause of Turner Syndrome

Answer 30

Monosomy X