Deck 22 (421 - 440)

Question 1

421. Which chemical element is typically only for living organisms:

a. oxygen
b. iron
c. carbon
d. none of the above

Answer 1

c. carbon

Question 2

422. In monohybrid cross of two heterozygotes and complete dominance, we get the ratio of:

a. 3:1 phenotypic and 1:1 genotypic
b. 1:2:1 phenotypic and 3:1 genotypic
c. 3:1 phenotypic and 1:2:1 genotypic
d. 9:3:3:1 phenotypic

Answer 2

b. 1:2:1 phenotypic and 3:1 genotypic

Question 3

423. Oxytocin in man:

a. regulates the activity of the front lobe of hypophysis
b. acts on smooth muscles of lactiferous ducts
c. influences ripening of follicles
d. accelerates the transformation of nutrients

Answer 3

b. acts on smooth muscles of lactiferous ducts

Question 4

424. Bacteria causing severe diarrhoeal diseases do NOT include:

a. Escherichia
b. Salmonella
c. Shigella
d. Klebsiella

Answer 4

d. Klebsiella

Question 5

425. Vitamins are:

a. microelements
b. macroelements
c. important for information
d. active parts of some enzymes

Answer 5

d. active parts of some enzymes

Question 6

426. In complete dominance by cross of the heterozygote with the recessive homozygote we obtain:

a. phenotypic cleavage ratio 3:1
b. 50% heterozygotes and 50% recessive homozygotes
c. genotypically different, but phenotypically identical progeny
d. 50% heterozygotes and 50% dominant homozygotes

Answer 6

50% heterozygotes and 50% recessive homozygotes

Question 7

427. Antidiuretic hormone and oxytocin in man are formed in the:

a. in the thalamus
b. in the epiphysis
c. in the hypothalamus
d. on the stimulus of the growth hormone

Answer 7

in the hypothalamus

Question 8

428. The main causative agent of venereal diseases belongs to the genus:

a. Shigella
b. Mycobacterium
c. Treponema
d. Vibrio

Answer 8

c. Treponema

Question 9

429. The process, by which substances penetrate from the gastrointestinal tract into the body is called ?

Answer 9

resorption

Question 10

430. In cross of the recessive homozygote with the heterozygote (aa x Aa) and complete dominance:

a. we find the phenotypic ratio of 1:1
b. the progeny are identical with one of the parents
c. the progeny are uniform
d. 50% of progeny have the intermediary phenotype

Answer 10

a. we find the phenotypic ratio of 1:1

Question 11

431. Antidiuretic hormone influences in the human kidneys:

a. back resorption of potassium
b. back resorption of glucose
c. walls of arterioles, where it decreases the pressure
d. back resorption of water

Answer 11

back resorption of water

Question 12

432. Mucor mucedo belongs to:
     a. Zygomycetes
     b. Ascomycetes
     c. Sacharomycetales
     d. Eurofiales

Answer 12

a. Zygomycetes

Question 13

433. The main organ of resorption is the …

Answer 13

small intestine

Question 14

434. In eukaryotic cells, most molecules of mRNA are synthesised in …

Answer 14

nucleus

Question 15

435. Production of hormones of the thyroid gland in man depends mainly on the supply of ?

Answer 15

iodine

Question 16

436. Ascomycetes are:

a. Zygomycetes
b. Lichens
c. Ascomycota or sac fungi
d. Basidiomycota or higher fungi

Answer 16

c. Ascomycota or sac fungi

Question 17

437. To animals with a stable body temperature belong:

a. reptiles, birds and mammals
b. birds and mammals
c. only mammals
d. none of the above

Answer 17

b. birds and mammals

Question 18

438. In the progeny of two heterozygotes in monohybrid cross and complete dominance, the dominant homozygotes produce:

a. 50% progeny
b. 75% progeny
c. 25% progeny
d. 2/3 of individuals with the dominant trait

Answer 18

c. 25% progeny

Question 19

439. Thyroxin in man is produced by:

a. hypophysis
b. adenohypophysis
c. thyroid gland
d. hypothalamus-hypophysis system

Answer 19

thyroid gland

Question 20

440. Beer yeast belongs to:

a. Zygomycetes
b. Ascomycetes
c. Basiomycetes
d. Eurotiales

Answer 20

b. Ascomycetes