Pyrethrum is extracted from | Biology Questions a.Chrysanthemum b.Cinchona c.Catharanthus d.Cola Nitida

Answers 2

Option a Chrysanthemum

Answer:

Overview. Pyrethrum is a plant (Chrysanthemum cinerariifolium). Pyrethrum is also the name of the crude extract obtained from flowers of this plant.

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The hormone inhibin is produced by a.Leydig cell b.Sertoli cells c.Graffian follicle d.Corpous luteum

Answer:

Inhibin is a protein secreted by the Sertoli cells in men and by the granulosa cells in women. It inhibits the synthesis and release of the follicle-stimulating hormone in the pituitary gland and reduces the hypothalamic LH - releasing hormone content.

Jaundice is the disorder of | Biology Questions a.Circulatory system. b.Excretory system. c.Skin and eyes. d.Digestive system.

Answer:

It is a disorder of the digestive system. The colour of skin and eyes depend on the levels of bilirubin present. Conditions that can cause jaundice: - Inflammation of the bile duct: Inflammation of bile duct prevents the secretion of bile and removal of bilirubin.

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AB blood group was discovered by a.Decastello and Sturli b.Karl Landsteiner c.William Harvey d.Wallace Alfred

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immunologist Karl Landsteiner

The A, B, and O blood groups were first identified by Austrian immunologist Karl Landsteiner in 1901.

Test cross in plants or in Drosophila involves crossing a.Between two genotypes with recessive trait b.Between two F 1 hybrids c.The F 1 hybrid with a double recessive genotype d.Between two genotypes with dominant trait

Answer:

correct answer is d.

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