Calcium is important in skeletal muscle contraction because it Option 1 : Activates the myosin ATPase by binding to it.Option 2 : Detaches the myosin head from the actin filament.Option 3 : Prevents the formation of bonds between the myosin cross bridges and the actin filament.Option 4 : Binds to troponin to remove the masking […]
Calcium is important in skeletal muscle contraction because it Read More »
Which of the following is an occupational respiratory disorder? Option 1 : BotulismOption 2 : AnthracisOption 3 : EmphysemaOption 4 : Silicosis
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All of the following are part of an operon except Option 1 : An operatorOption 2 : An enhancerOption 3 : Structural genesOption 4 : A promoter
All of the following are part of an operon except Read More »
AGGTATCGCAT is a sequence form the coding strand of a gene. What will be the corre- sponding sequence of the transcribed mRNA? Option 1 : AGGUAUCGCAUOption 2 : ACCUAUGCGAUOption 3 : UGGTUTCGCATOption 4 : UCCAUAGCGUA
According to Hugo de Vries, the mechanism of evolution is Option 1 : Minor mutationsOption 2 : Multiple step mutationsOption 3 : Phenotypic variationsOption 4 : Saltation
According to Hugo de Vries, the mechanism of evolution is Read More »
Which of the following terms describe human dentition? Option 1 : Pleurodont, Monophyodont, HomodontOption 2 : Thecodont, Diphyodont, HomodontOption 3 : Pleurodont, Diphyodont, HeterodontOption 4 : Thecodont, Diphyodont, Heterodont
Which of the following terms describe human dentition? Read More »
Many ribosomes may associate with a single mRNA to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as Option 1 : NucleosomeOption 2 : PolysomeOption 3 : PlastidomeOption 4 : Polyhedral bodies
Nissl bodies are mainly composed of Option 1 : Proteins and lipidsOption 2 : Nucleic acids and SEROption 3 : Free ribosomes and REROption 4 : DNA and RNA
Column I Column II (a) Tricuspid valve (i) Between left atrium and left ventricle (b) Bicuspid valve (ii) Between right ventricle and pulmonary artery (c) Semilunar valve (iii) Between right atrium and right ventricle Options: (a) (b) (c)(a) (iii) (i) (ii)(b) (i) (ii) (iii)(c) (i) (iii) (ii)(d) (ii) (i) (iii)
Which of the following events does not occur in rough endoplasmic reticulum? Option 1 : Protein glycosylationOption 2 : Protein foldingOption 3 : Cleavage of signal peptideOption 4 : Phospholipid synthesis Correct answer are both Option 1 and 4.
Which of the following events does not occur in rough endoplasmic reticulum? Read More »
