SEX-LINKED TRAITS
1+ 145 ViewsSEX-LINKED TRAITS Sex–linked traits are characteristics whose genes are carried on the X chromosome of the sex chromosomes…
CHROMOSOME: THE BASIS OF HEREDITARY
1+ 138 ViewsCHROMOSOME: THE BASIS OF HEREDITARY LOCATION AND STRUCTURE OF CHROMOSOMES Chromatin granules (thread – like structures) found in…
DETERMINATION OF THE GENOTYPE OF A DOMINANT PHENOTYPE
1+ 117 ViewsDETERMINATION OF THE GENOTYPE OF A DOMINANT PHENOTYPE A dominant phenotype has the genotypic patterns RR, Rr. The…
DIHYBRID INHERITANCE
0 113 ViewsDIHYBRID INHERITANCE Gregor Mendel crossed plants which differ in two pairs of contrasting characteristics e.g. seed shape (round…
MENDELS WORK IN GENETICS
0 90 ViewsMENDELS WORK IN GENETICS In the study of genetics, Gregor Mendel (1866) worked with the garden pea (Pisumsativum) …
HEREDITARY VARIATION AND CAUSES
0 92 ViewsHEREDITARY VARIATION AND CAUSES Hereditary variation is the differences among individuals which can be passed from the parents…
BIOLOGY OF HEREDITARY AND VARIATION
1+ 128 ViewsBIOLOGY OF HEREDITARY AND VARIATION (GENETICS) DEFINITIONS OF GENETIC TERMS Genetics is the scientific study of heredity and…
THEORIES OF EVOLUTION
0 118 ViewsTHEORIES OF EVOLUTION ORGANIC EVOLUTION Organic evolution is the sum total of adaptive changes from pre–existing or old…
SOCIAL ANIMALS
0 140 ViewsSOCIAL ANIMALS Social animals are those in which individuals of the same species live together cooperatively in organized…
ADAPTIVE COLOURATION AND BEHAVIOURAL ADAPTATION
1+ 192 ViewsADAPTIVE COLOURATION AND BEHAVIOURAL ADAPTATION ADAPTIVE COLOURATION This is the possession by an organism of a colour which…