The three nucleotide sequence on RNA is called a: 1) tRNA 2) codon 3) triplet 4) gene
Which of the following takes the genetic code to the cytoplasm: 1) DNA 2) deoxyribose 3) tRNA 4) mRNA
The twisted ladder shape of DNA is called a: 1) hydrogen twist 2) deoxyribose flip 3) double helix 4) double membrane
A gene is: 1) a segment of DNA that codes for a protein 2) a set of homologous chromosomes 3) a molecule within DNA 4) a type of pants
The process by which DNA makes a copy of itself is called: 1) synthesis 2) replication 3) transcription 4) translation
The DNA molecule is held together by: 1) magnetism 2) glucose 3) glue 4) hydrogen bonds
Adenine always pairs with: 1) thymine 2) cytosine 3) guanine 4) ribose
Under favourable conditions of binary fission, a bacterial cell divides into two after every 20 minutes. How many approximate bacterial cells may survive after 2 hours?
1) 64 2) 6
3) 8 4) 63
Which of the following belongs to the order Perissodactyla? 1) zebra 2) horse 3) rhino 4) all of these
Which of the following is a true moss?
1) Wolf moss 2) Florida moss
3) Spanish moss 4) None of these
Hair is used primarily for: 1) defense 2) coloration 3) insulation 4) sensation
Which of the following animals have incisors that continue to grow its entire life? 1) elephant 2) walrus 3) hamster 4) lion
Which of the following is the largest group of mammals? 1) rodentia 2) chiroptera 3) carnivora 4) insectivora
Which of the following groups contains mammals that lay eggs? 1) marsupial 2) monotreme 3) chiroptera 4) rodentia
What feature(s) do bats and whales share? 1) mammary glands 2) placenta 3) echolocation 4) all of these
Meiosis results in _____ 1) 2 haploid daughter cells 2) 4 haploid daughter cells 3) 2 diploid daughter cells 4) 4 diploid daughter cells
Which of the following cells undergo meiosis? 1) sperm cells 2) liver cells 3) unicellular organisms 4) all of these
Crossing-over occurs during: 1) anaphase 1 2) metaphase 1 3) prophase 1 4) prophase 2
Meiosis is a type of cell division that produces: 1) zygotes 2) chromosomes 3) DNA 4) gametes
Which of the following distinguishes prophase 1 of meiosis from prophase of mitosis? 1) homologous chromosomes pair up 2) spindle forms 3) nuclear membrane breaks down 4) chromosomes become visible
The process by which RNA is made from DNA: 1) synthesis 2) translation 3) transcription 4) replication
Incomplete dominance, codominance and multiple alleles are which type of gene interaction?
1) Intragenic interaction 2) Intergenic interaction
3) Interallelic interaction 4) Both 1) and 3)
The Coronary thrombosis leads to 1) Stroke 2) Heart block 3) Heart failure 4) Heart attack
The vitamins that help to counteract the deleterious effects of corticosteroids on wound healing is
1) Vitamin A 2) Vitamin B2
3) Vitamin C 4) Vitamin E
Vaginal bleeding in a new born female infant is due to
1) Trauma 2) Infection
3) Haemorrhagic disease 4) Estrogen withdrawal
Sugar in the urine of pregnant lady may indicate
1) Lactosuria 2) Benign renal glycosuria
3) Diabetes mellitus 4) All of these
Howship lacunae occurs in
1) Spleen 2) Liver
3) Bone 4) Cartilage
Mystagmus is sex linked disease
1) Long hairy growth on the pinna
2) Involuntary oscillation of eye ball
3) Abnormality of the mitral valve
4) Degenaration of optic nerve
In which stage of developmental form of fasciola showing polyembrony?
1) Sporocyst 2) Metacercaria
3) Redia 4) Both 1) and 3)
Hypokinetic Hypoxia concerned to
1) Reduced blood flow rate
2) Low O2– content in blood
3) Low O2 in artery
4) Low oxygen content in venous blood
Peacetime deaths concern to
1) Effect of poison on stomach
2) Food poisoning
3) Gaseous poisoning
4) Snake venom cause agglutination of R.B.Cs
Spiral valve of Heister is present in
1) cystic duct 2) Hepto-pancreatic duct
3) Pancreatic duct 4) Bile duct
DNA is called the "blueprint of life" because: 1) it is like a fingerprint 2) it has a blue color 3) it contains the plans for building an organism 4) it can relay messages to other molecules
Repititive DNA is not met with in
1) Yeast 2) Prokaryotes
3) Both 1) and 2) 4) Eukaryotes
The philedelphia chromosome is usually related to person suffering from
1) Chronic lymphatic leukemia
2) Acute lymphatic leukemia
3) Chronic myelocytic leukemia
4) Osteosarcoma
In which of the following layers of the atmosphere, temperature decreases with height?
1) Stratosphere 2) Mesosphere
3) Thermosphere 4) All of these
During radioactive pollution oysters deposite
1) 65Zn 2) 55Fe
3) 90Sr 4) All of these
CAZRI is situated at
1) Nagpur 2) Jodhpur
3) Palampur 4) Bilaspur
The type of fruit found in jack fruit and monkey fruit is
1) Sorosis
2) Syconus
3) Sorosis and suyconus, respectively
4) Syconus and sorosis, respectively
Tissue between xylem and phloem strands in monocot stem is
1) Intrafascicular cambium 2) Interfascicular cambium
3) Conjunctive tissue 4) None
The phyllotaxy found in guava is
1) Alternate 2) Opposite superposed
3) Opposite decussate 4) Both 2) and 3)
Which of the following insectivorous plants is called Cobra lily?
1) Heliamphora 2) Darlingtonia
3) Genlisea 4) Cephalotus
The difference between the redox potentials of Cytochrome b6 and cytochrome f in Z-scheme amounts to
1) 0.03 v 2) 0.36
3) 0.33 4) 0.23
Which of the following phytohormones brings about the negative gravitropism of roots and the positive gravitropism in stem?
1) GA 2) ABA
3) IAA 4) None
In which of the following lysosome occurs?
1) Aspergillus 2) Penicillium
3) Neurospora 4) All of these
