Monohybrid cross :- Monohybrid is the cross involves one character and single gene pair.It leads to monohybrid offspring in F₁ generation. Mendel proposed that in a true breeding, tall or dwarf pea variety the allelic pair of genes for height are identical or homozygous, TT and tt respectively. TT and tt are called genotype of […]

It is a cross which involves two characters and two gene pair. it leads to dihybrid F₁ offspring. Mendel worked with and crossed pea plants that differed in two characters, as is seen in the cross between a pea plant that has seeds with yellow colour and round shape, one that had seeds of green

Allele or Allelomorph :- Genes which code for a pair of contrasting traits are known as alleles, i.e. They are slightly different forms of the same gene. Example – In case of the character of height, T is used for the tall trait and t for the dwarf, T and t are alleles of each

Genetics :- Genetics is the branch of biology concerned with the study of genes, genetic variation and heredity in organisms. Heredity :- It is the passing on of traits from parents to their offspring, either through asexual reproduction or sexual reproduction. The traits or characters are called hereditary characters. Gene :- A gene is the

RNA and its structure :- RNA molecules are single stranded nucleic acids composed of nucleotides. Fig. 1. Structure of ( a ) DNA and ( b ) RNA. RNA molecules are polymer of nucleotides joined to one another by covalent bonds between the phosphate of one nucleotides and the sugar of another. These linkages are