(16)
Which one of the following annelids is commonly known as the sea mouse?
1
Aphrodite
2
Aplysia
3
Polynoe
4
Chaetopterus
(17)
The typhlosole of earthworm is related with
1
excretion
2
respiration
3
reproduction
4
absorption
(18)
Proboscis of butterfly is formed from
1
paraglossa
2
labrum
3
maxilla
4
mandible
(19)
The ophiopluteus larva of Echinodermata belongs to the class
1
Holothuroidea
2
Ophiuroidea
3
Echinoidea
4
Asteroidea
(20)
In pigeon, milk is secreted by both sexes through
1
liver
2
gizzard gland
3
crop gland
4
salivary gland
(21)
Which one of the following is a fish?
1
Sea cow
2
Sea cucumber
3
Sea horse
4
Sea urchin
View Answer
(22)
Petromyzon is not a true fish because of
1
absence of median fins
2
presence of gills
3
absence of paired fins and true jaws
4
absence of operculum
View Answer
Answer: absence of paired fins and true jaws
(23)
Desmosomes are concerned with
1
cell adherence
2
cell division
3
cellular excretion
4
cytolysis
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(24)
Spindle apparatus is made up of
1
endoplasmic reticulum
2
polysome
3
microtubule
4
spherosome
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(25)
Which of the following types of gametes are produced from an animal with RrYY genotype?
1
RY, Ry, rY, ry
2
RY, rY
3
RY, RY, Ry, rY
4
rY, ry, Ry, iy
View Answer
(26)
Frameshift mutation occurs, when
1
base is added
2
base is deleted
3
base is added or deleted
4
anticodons are not present
View Answer
Answer: base is added or deleted
(27)
The successive nucleotides of DNA are covalently linked through
1
peptide bond
2
hydrogen bond
3
glycosidic bond
4
phosphodiester bond
View Answer
Answer: phosphodiester bond
(28)
Wheel organ is found in
1
Ascidia
2
Balanoglossus
3
Amphioxus
4
Annelids
View Answer
(29)
In which one of the following fishes, male shows pareintal care?
1
Anabas
2
Labeo
3
Sea horse
4
Synaptula
View Answer
(30)
Bidder's organ in frog is attached to
1
liver
2
kidney
3
ovary
4
lung
View Answer
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