Which of the following most appropriately describes haemophilia?
(1) X-linked recessive gene disorder
(2) Choromosomal disorder
(3) dominant gene disorder
(4) Recessive gene disorder
In angiosperms, microsporogenesis and megasporogenesis
(1) occur in anther
(2) form gametes without further divisions
(3) involve meiosis
(4) occur in ovule
Destruction of the anterior horn cells of the spinal cord would result in loss of
(1) sensory impulses
(2) voluntary motor impulses
(3) commissural impulses
(4) integrating impulses
The cutting of DNA at specific locations became possible with the discovery of
(1) restriction enzymes
(2) probes
(3) selectable markets
(4) ligases
The enzyme that is not present in succus entericus is
(1) maltase
(2) nucleases
(3) nucleosidase
(4) lipase
In which of the following interactions both partners are adversely affected?
(1) Competition
(2) Predation
(3) Parasitism
(4) Mutualism
A. Saccharomyces cerevisiae | i. Production of immunosuppressive agents |
B. Monascus purpureus | ii. Ripening of Swiss Cheese |
C. Trichoderma polysporum | iii. Commercial production of ethanol |
D. Propionibacterium sharrmanii | iv. Production of blood-cholesterol lowering agents |
Codes
A | B | C | D | |
1. | iii | iv | i | ii |
2. | iv | iii | ii | i |
3. | iv | ii | i | iii |
4. | iii | i | iv | ii |
In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to
(1) Alkaline pH of the insect gut
(2) acidic pH of the insect gut
(3) action of gut microorganisms
(4) presence of conversion factors in insect gut
Fruit color in squash is an example of
(1) recessive epistatis
(2) dominant epistatis
(3) complementary genes
(4) inhibitory genes
A human female with turner's syndrome
(1) has 45 chromosomes with XO
(2) has one additional X-chromosome
(3) exhibits male characters
(4) is able to produce children with normal husband