The origin of replication is responsible for initiating replication.
Author: Dr. Karuna Sharma
Ph.D. Environmental sciences, M.Sc. Zoology, Gold medalist, Goa University Topper. Conduct classes for NEET and NET Life Sciences
In Ramu ‘s field , at Amona , small birds were often seen sitting on the backs of grazing cattle and pecking . Identify the type of interaction : a) Commensalism b) Mutualism c) Parasitism d) Predation
Mutualism.
Choose the correct alternative and rewrite: A. Restriction enzymes belong to a class of enzymes called : a) Proteases b) Chitinases c) Nucleases d) Cellulases
c) Nucleases
In an experiment on monohybrid cross a geneticist crossed dominant homozygous white mice with homozygous black mice . Using the punnet square , work out F1 & F2 generations and derive the phenotypic and genotypic ratio
Phenotypic ratio : All White, All Genotypic ratio : All Ww
A child has blood group O. If father has blood group A and mother blood group B, work out the genotypes of the parents and the possible genotypes of the other offsprings. Identify the type of inheritance.
Therefore the genotype of the parents is IA i & I B i The other offsprings will be – AB, B, A, O. Read More …
Differentiate between grazing food chain and detritus food chain.
Grazing food chain 1.depicted as grass —goat — man 2.Begins with producers / autotrophs. All animals depend on plants for their food Read More …
Differentiate between an upright and inverted pyramid.
Upright pyramid 1. Producers are more in numbers than the herbivores and herbivores more in number than carnivores. 2. Pyramid of energy is Read More …
Describe the process of transcription in bacteria.
RNA polymerase binds to the promoter and initiates transcription (initiation). It uses nucleosides triphosphates as substrate and polymerises in a template dependent fashion following Read More …
Which disease there is point mutation , where there is single base pair change in betaglobulin chain of haemoglobin?
Sickle cell anaemia
The sex determination mechanism in grasshopper is : a) XY type b)XO type c)d)ZW type ZZ type
insects it is XO type , so b)
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