Air sacs in most of the birds are
1.6
2.11
3.9
4.12
Air spaces in leaf comprises total volume of
1.40%
2.45%
3.50%
4.55%
All are paired facial bones except
1.maxilla
2.nasal
3.lacrimal
4.mandible
All are the deformities of skeleton caused by nutritional deficiencies except
1.osteomalacia
2.rickets
3.microcephaly
4.none of them
Antibiotic that can cause allergic reactions
1.tetracycline
2.streptomycin
3.penicillin
4.terramycin
Bony fishes have brain with how many pair of cranial nerves?
1.10
2.11
3.14
4.12
Capsid of herpes virus contain number of capsomers
1.162
2.252
3.165
4.152
Cohesion tension theory is given by
1.Morgan
2.Dixon
3.Robert
4.Sacks
Colour blindness is
1.x-linked recessive trait
2.y-linked recessive
3.y-linked dominant
4.x-linked dominant
Energy trapped by producers in the ecosystem is
1.1%
2.99%
3.75%
4.65%
Female reproductive cycle is completed in
1.27 days
2.28 days
3.26 days
4.29 days
First complete seed appears in
1.cenozoic era
2.jurassic era
3.devonian era
4.carboniferous era
Genetic information is transmitted from DNA to
1.the sites of protein synthesis
2.proteins
3.amino acids
4.digestive enzymes
Hepatitis A virus is
1.RNA enveloped
2.RNA non-enveloped
3.DNA envelope
4.DNA non-envelope
In bud condition the upper surface of leaf shows more growth than lower surface in
1.epinasty
2.hyponasty
3.nutation
4.circumnutation
In class crustacea of phylum arthropoda sexes are
1.separate
2.hermaphrodite
3.separate and hermaphrodite both
4.none of them
Kelps belong to which phylum?
1.rhodophyta
2.chlorophyta
3.phaeophyta
4.pyrrophyta
Major cause of chlorosis in plants is shortage of
1.magnesium
2.sulphur
3.nitrogen
4.iron
Most cells lacking a cell wall also lack
1.mitochandria
2.chloroplasts
3.a vacuole
4.a Golgi complex
New cells were formed by division of previously existing living cells, statement given by
1.Pasteur
2.Lorenz oken
3.Robert hooke
4.Rudolph virchow
Nicotine causes all of the following effects except
1.increase blood pressure
2.increase heart beat
3.increae digestive mobility
4.increase the action of acetylcholine
Paraphyses is a character of class
1.anthocerotae
2.hepaticopsida
3.bryopsida
4.psilopsida
Percentage of photosynthesis carried out by terrestrial plants
1.11%
2.10%
3.20%
4.70%
Phytoplanktons include all except
1.protista
2.bacteria
3.algae
4.crustaceans
Red Blood Cells are produced by the
1.kidneys
2.Lungs
3.Bone Marrow
4.Lymph
Ringworm and athletes foot are superficial fungal infection caused by certain
1.zygomycota
2.ascomycota
3.basidiomycota
4.deuteromycota
Super blue green algae or expensive pond scum contain __________ protein.
1.55%
2.75%
3.45%
4.60%
The anti-diuretic hormone acts on which part of nephron to cause re-absorption of water?
1.proximal convoluted tubule
2.loop of henle
3.collecting duct
4.distal convoluted tubule
The duration of G-2 phase is
1.10 hrs
2.30 min
3.9 hrs
4.4.5 hrs
The family Solanaceae include all except
1.sweet pea
2.potato
3.tobacco
4.tomato
The Hardy-Weinberg principle applies to
1.locomotion
2.population genetics
3.blood transportation
4.the cell theory
The initiation codon is
1.AGU
2.UAA
3.UAG
4.AUG
The lifespan of platelets is ___ days.
1.5
2.6
3.100
4.120
The maximum speed of nerve impulse recorded in human is
1.80 m/s
2.100 m/s
3.120 m/s
4.140 m/s
The most common rust fungi species are
1.ustilago
2.puccinia
3.aspergillus
4.penicillium
The number of chromosome in mouse is
1.20
2.26
3.40
4.32
The number of thoracic vertebrae
1.7
2.12
3.9
4.5
The part of brain which is responsible for long term memory and learning is
1.hippocampus
2.medulla
3.amygdala
4.hypothalamus
The pH concentrations at which maltase is least effective are
1.1 and 7
2.1 and 14
3.7.5 and 14
4.10 and 14
The salt and water balance of the body fluid is maintain by the
1.Kidneys
2.Urinary bladder
3.Lymph
4.Chloroplasts
The small intestine consists of
1.duodenum, jejunum and ileum
2.duodenum, caecum and ileum
3.duodenum, jejunum and rectum
4.caecum, colon and rectum
When a single gene has multiple phenotypic effects the phenomena is called
1.pleiotropy
2.codominance
3.over dominance
4.epistasis
Whic from the following is the correct classification?
1.Kingdom → Order → Class → Family
2.Kingdom → Phylum → Class → Order
3.Kingdom → Class → Species → Family
4.Kingdom → Class → Phylum → Family
Which from the following is NOT the function of Enzymes?
1.speed up chemical reaction
2.digest food substances
3.involved in cellular respiration
4.maintain healthy epithelial tissues
Which is used as pollution indicator
1.kelp
2.spirogira
3.oscillatoria
4.aspergillus
Which is used to lower blood cholesterol
1.cyclosporine
2.lovastatin
3.ergotine
4.penicillin
Which of the following is not an endotherm
1.bird
2.mammals
3.amphibian
4.insects
Which of the following is not sex-linked recessive
1.colour blindness
2.haemophilia
3.tfm syndrome
4.hypophosphatemic ricket
Which one of the following is not a neurotransmitter
1.acetylcholine
2.histine
3.adrenaline
4.serotonin
Which thing in the gall bladder precipiatate to form gall stones
1.bile salts
2.bile acids
3.protein
4.cholesterol