Exams

1. According of fluid mosaic model, plasma membrane is composed of (a) phospholipids and oligosaccharides (b) phospholipids and hemicellulose(c) phospholipids...

1. Reabsorption of useful substances from glomerular filtrate occurs in(a) Collecting tube(b) Loop of Henle(c) Proximal convoluted tubule(d) Distal convoluted...

1. MSH of pars intermedia of middle pituitary is responsible for(a) darkening of skin in lower vertebrates(b) light colouration of...

1. Pyramid of numbers in a grassland/true ecosystem is(a) always inverted(b) always upright(c) both A and B(d) spindle-shaped 2. Food...

1. Meiosis I is reductional division. Meiosis II is equational division due to(a) pairing of homologous chromosomes(b) crossing over(c) separation...

1. Skin is an accessory organ of respiration in(a) humans(b) frog(c) rabbit(d) lizard 2. The alveolar epithelium in the lungs...

1. RBC do not occur in(a) frog(b) cow(c) camel(d) cockroach2. Breakdown product of haemoglobin is(a) Bilirubin(b) Iron(c) Biliverdin(d) Calcium3. Child...

1. Introduction of food plants developed by genetic engineering is not desirable because(a) economy of developing countries may suffer(b) these...

Biotechnology and Its application 1. Genetically engineered bacteria have been successfully used in the commercial production of(a) human insulin(b) testosterone(c)...

1. In double helix of DNA, the two DNA strands are(a) coiled around a common axis(b) coiled around each other(c)...