English Prepositions - For MCAT & ECAT Preparation 2013

 Note: Choose the best/appropriate preposition for the following blanks.01. She writes ______ a Pen.a) byb) toc) Fromd) With02. She gave me advice _______ my loan.a) with b) Toc) Fromd) about03. Please follow the ________ instructions.a) Throughb) abovec) beneathd) behind04. We are not allowed to watch television when we are _____ dinner.a) withb) inc) ond) at05. Try to learn one step ______ a time, rather than three or four _____ once.a) in , atb) at , atc) in , atd) at ,...

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Locomotion In Animalia

Locomotion in Animalia:      Locomotory organs of animals are built on a quite different plan than those of the protoctists. Instead of being appendages of a single cell, the locomotory organs of animals are far more developed and work by the co-ordinated action of muscles and skelet...

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Sex Limited Trait

A sex-limited trait is limited to only one sex due to anatomical differences. Such trait affects a structure or fuction of the body present in only males or only females. These traits may be controlled by sex-linked or autosomal genes. Genes for milk yield in dairy cattle affect only cows. Similarly beard growth in humans is limited to men. A woman does not grow a bread herself but she can pass the genes specifying heavy beard growth to her so...

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Genes and Alleles - Variation and Gene

Genes:      Gene (Or.genos = Birth,race) are the basic units of inheritance consisting of a sequence of DNA that occupies a specific position called locus on a chromosomes and is capable of a biological expression. It is the means by which one or more specific characteristics are passed on from parents to offspring.Alieles:      Gr. allelon = of one anothe): Any pf the possible alternative forms of the same gene, of which every individual inherits two (one from each parent), different combinations...

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Locomotion In Earthworm

Locomotion in Earthworm:      Earthworms, being terrestrial, are adapted to locomotion in soil. Their movement is brought about by the contraction of two sets of muscles and their body fluid, serving as a hydrostatic skeleton. Contraction of longitudinal muscles shortens the body and contraction of circular muscles lengthens (elongation) the body. As a result of interaction of muscles contractions and compressed body fluid an earthworms crawls.    ...

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Gene Pool

Gene Pool:    All the genes / alleles found in a breeding population at a given time are collectively called the gene pool. It is the total genetic information encoded in the genes in a breeding population existing at a given time.Explanation:      A population is any group of interbreeding organisms of the same species that exist in both time and space. Concept of 'Breeding Genetics'    If we imagine population not as a group of individuals, but as a group of individually segregating and randomly...

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