DNA is Deoxyribose nucleic acid. It occurs in chromosomes (nuclear reticulum). DNA h…
According to Conservative estimate there are thousands of genes in four pairs of chrom…
It is the manipulation of genetic material of any organism. Genetic engineering usua…
The sum total of all the hereditary units or genes which an organism contains are toge…
--> All the physical appearances by which recognize an individual are together k…
The factors for contrasting characters remain associated in pairs in the somatic cel…
Tall plants produce in F2 generation may either have TT or Tt genotypes. Mendel devise…
The term test cross is often used interchangeably with back cross. However two are not…
A gene for a trait having three or more allelic forms are called multiple alleles. A w…
It may be described as phenomenon of inheritance in which both alleles of a contrastin…
According to theory of evolution organisms living today have arisen from earlier typ…
Term variation means the differences in characteristics shown by organisms belonging…
Evolution means development of life with time. Evolution means that living things ch…
DOMINANCE If two different alleles of the same gene (T and t) come together by fus…
--> Plant breeding techniques are as under: (1) Selection …
--> MUTATION Genes along with their chromosomes are fairly stable and trans…
GENETIC ENGINEERING: It is the manipulation of genetic material of any organism. G…
--> Conjugation and Recombination: J. Lederberg and E. L. Tatum discovered …
The hereditary apparatus of the body works in much the same way as that of most prim…
Translation: The Mechanism of Protein synthesis: Translation is the final stage of…
It has been Commonly observed that: (1) In EuKaryotes, DNA the genetic mat…
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