Deck 18 (341 - 360)

Question 1

341. The basic genetic characteristic of homozygotes is/are:

a. they have identical karyotype
b. they inherited identical alleles of a given gene from their parents
c. that have identical genotype
d. they form gametes with different alleles of the homozygous gene

Answer 1

b. they inherited identical alleles of a given gene from their parents

Question 2

342. The most ancient of living birds is the …

Answer 2

ostrich

Question 3

343. Cerebral cortex is best developed in …

Answer 3

elephants and dolphins

Question 4

344. Thallobionta are:

a. vessel plants
b. seed plants
c. thallus plants
d. higher plants

Answer 4

c. thallus plants

Question 5

345. The following is/are the basic characteristic of heterozygotes:

a. they have different alleles on the gene locus
b. they have different genotype and phenotype
c. they do not have identical gene pool
d. they came into being by crossing the phenotypically different parents

Answer 5

a. they have different alleles on the gene locus

Question 6

346. More than half of all vertebrates are …

Answer 6

fish

Question 7

347. Cerebellum:

a. controls the body balance and coordinates movement
b. is a centre of breathing
c. is a centre of sneezing
d. is a centre of reflex movements

Answer 7

controls the body balance and coordinates movement

Question 8

348. The oldest autotrophic organisms include:

a. bacteria
b. viruses
c. cyanobacteria
d. algae

Answer 8

c. cyanobacteria

Question 9

349. Which of the following genetic schemas expresses the cross of two heterozygotes:

a. AABB x AABb
b. AaBb x AaBb
c. AaBbCC x AaBbCc
d. aa x AA

Answer 9

b. AaBb x AaBb

Question 10

350. The early amphibian, Ichthyostega, breathed by ?

Answer 10

mouth alteration

Question 11

351. The following is the superior part of the nerve regulating the internal organs:

a. thalamus
b. hypothalamus
c. medulla oblongata
d. forebrain

Answer 11

b. hypothalamus

Question 12

352. The most widespread group of lower plants are ?

Answer 12

algae

Question 13

353. Which of the following recordings do not contravene the Mendel’s laws (parents - progeny):

a. AA x aa - AA, Aa, aa
b. aaBB x AAbb - AaBb, AAbb, aaBB
c. aa x aa - aa
d. aa x aa - aa, Aa, AA

Answer 13

c. aa x aa - aa

Question 14

354. Sharks must constantly swim because they lack ?

Answer 14

swim bladder

Question 15

355. Epiphysis:

a. produces hormone, which activates the formation of sexual hormones
b. is a functional part of hypophysis
c. produces growth hormone
d. reacts to the intensity of light

Answer 15

reacts to the intensity of light

Question 16

356. Batrachospermum moniliform belongs to ?

Answer 16

red algae

Question 17

357. Back cross:

a. is a synonym for reciprocal cross
b. is cross of two recessive homozygotes
c. is employed in the breeding practice
d. is also employed in the genetics of man

Answer 17

c. is employed in the breeding practice

Question 18

358. Which of the following is not a characteristic of the first cells:

a. genome composed of RNA
b. single-celled
c. anaerobic
d. heterotrophy

Answer 18

a. genome composed of RNA

Question 19

359. Hormones of the thyroid gland:

a. are building substances
b. don’t influence the activity of myocardium
c. are formed in the hypophysis
d. regulate eg. metamorphosis of amphibians

Answer 19

d. regulate eg. metamorphosis of amphibians

Question 20

360. To the division of Chlorophyta does not belong:

a. Phaeophyceae
b. Chlorophyceae
c. Conjugatophyceae
d. Charophyceae

Answer 20

a. Phaeophyceae