The number of daughter paramecia produced following conjugation is
8 from one conjugant
8 from two conjugants
16 from two conjugants
8-16 from two conjugants
Correct Answer :
B. 8 from two conjugants
Related Questions
Which of the following organelles are associated with defence in Protozoans ?
Nematocysts
Statocysts
Trichocysts
Otocysts
Nitrogenous wastes in Amoeba are expelled through
plasmalemma
pseudopodia
hyaline cap
contractile vacuole
When kerosene is sprayed on the stagnant water wherein the larvae of Anopheles develop, it
burns the body wall of the larvae
diffuses through the body wall and kills them
suffocates them to death
prevents contact of spiracles with air
Erythrocytic cycle of Plasmodium produces
schizonts
sporozoites
merozoites
metacryptomerozoites;
Under unfavourable conditions, the Amoeba reproduces by
binary fission
conjugation
encystment
endomixis
Attack of malaria occurs every fourth day when patient is infected by
Plasmodium ovale
Plasmodium malariae
Plasmodium falciparum
Plasmodium vivax
A liver biopsy of a patient suffering from amoebic hepatic abscess would demonstrate the presence of
trophozoites
cysts
precystic stages
sporozoites
Treatment of the infection by malarial parasite in the principal host is studied under
chemo-therapy
chemo-diagnosis
chemo-prophy laxis
prophylaxis
Incubation period of Plasmodium vwax is about
6-8 weeks
10-12 days
15-20 days
20-40 days
Sporogony of malaria parasite occurs in
liver of man
RBC of man
stomach wall of mosquito
salivary glands of mosquito
The pseudopodia ar formed in Amoeba
when it comes in contact with food particles
by movement of surrounding water
by exchange of salts with the medium
by sol-gel transformation of cytoplasm
Trophozoites of E.histolytica reproduced by
binary fission
conjugation
autogamy
budding
In Plasmodium, gametocytes are formed by j the trophozoites in the RBS of man. They do not develop fully in RBC because of
antibodies present in blood
antigens present in blood
higher temperautre of blood
lower temeprature of blood
The life cycle of Plasmodium in human blood is called
schizogony
syngamy
exo-erythro cytic schizogony
sporogony
The catabolic wastes in Amoeba consist of
water and CO2
water, CO2 and minerals
Water, CO2, minerals and urea
all of these
African sleeping sickness or Gambiense fever is caused by
Entamoeba
Trypanosma
Leishmania
Trichomonas
Trypanosoma is transmitted by
contamination
kissing
contagination
inoculation
The zoological name of giant amoeba is
Amoeba proteus
Arcella sp.
Chaos chaos
Ovale sp.
A food vacuole develops in Paramecium at the distal end of
cytopharynx
oral grove
cytostome
oesophagus
Which day is celebrated as Malaria day ?
20th August
15th August
26th Janurary
5th June
Benign tertian malaria is caused by
P. falciparum
P. vivax
P. malariae
P. ovale
In the life cycle of Plasmodium, man is the
primary host
intermediate host
secondary host
alternative host
Characters that are more useful in classification of animals are
morphological features
homologous features
analogous features
none of these
Vector can be defined as
disease transmitting host
natural reservoir of disease causing organism
pathogenic organism
any kind of disease transmitting organism
Sleeping sickness in man is caused by Trypanosoma by the bite of the infective
female Tsetse fly
male Tsetse fly
both male and female Tsetse flies
male and female aedes mosquito
The mode of life of Plasmodium in man and mosquito respectively is
intracellular in both
intercellular in both
intracellular and intercellular
intercellular and intracellular
The micronucleus in Paramecium is concerried with
vegetative function of the body
all the functions of the body
reproductive function of the body
locomotion
If a fresh water Amoeba for some reason in unable to form contractile vacuole, it will
stop forming pseudopodia
stop manufacturing metabolic water
burst consequent to osmotic swelling
become static for some time
The disease caused by Trypanosoma cruzi is
sleeping sickness
chaga's disease
kala azar
oriental sore
The process of reconstitution of macro-nulceus in Paramecium without any change in micro-nucleus is called
Cytogamy
Hemimixis
Endomixis
Autogamy