The equation = B represents, which of the following?
All of these
Identify which one of the following is an example, of incomplete ecosystem?
Only one of the following four ways through which AIDS can spread?
Infected needles and syringes
Through mosquito bites
Looking after AIDS patient
Shaking hands, coughing, sneezing, hugging
Active immunity development is related to
natural killer cells
helper T cells
suppressor T cells
Filariasis is caused by
dead adult filariae
biting of filarial worm
presence of bacteria in filarial wall
Indicate, the inheritance of which of the following is controlled by multiple alleles?
Sickle cell anaemia
A particular gene has been found to occur in two alternative forms or allelomorphs. The existence of more than two allelic forms of a gene is called multiple allelism and the alleles as multiple alleles, eg, blood group in human.
Which of the following conditions is related to haemophilia?
A responsible recessive gene present in the X-chromosome
A responsible dominant gene presentin the X-chromosome
A responsible dominant gene present in the Y-chromosome
A responsible dominant gene present in the autosomal chromosome
The absence of which clotting factor leads to haemophilia-A?