Biology

The amnion of mammalian embryo is derived from Option 1 : Ectoderm and mesodermOption 2 : Endoderm and mesodermOption 3 : Mesoderm and trophoblastOption 4 : Ectoderm and endoderm

The contraceptive ‘SAHELI’ Option 1 : Is an IUDOption 2 : Blocks estrogen receptors in the uterus, preventing eggs from getting implanted.Option 3 : Increases the concentration of estrogen and prevents ovulation in females.Option 4 : Is a post-coital contraceptive.

Hormones secreted by the placenta to maintain pregnancy are Option 1 : hCG, hPL, progestogens, estrogensOption 2 : hCG, hPL, progestogens, prolactinOption 3 : hCG, hPL, estrogens, relaxin, oxytocinOption 4 : hCG,progestogens, estrogens, glucocorticoids

Which part of poppy plant is used to obtain the drug “Smack”? Option 1 : FlowersOption 2 : RootsOption 3 : LatexOption 4 : Leaves

In a growing population of a country, Option 1 : Reproductive individuals are less than the post-reproductive individuals.Option 2 : Pre-reproductive individuals are more than the reproductive individuals.Option 3 : Reproductive and pre-reproductive individuals are equal in number.Option 4 : Pre-reproductive individuals are less than the reproductive individuals.

All of the following are included in ‘Ex-situ conservation’ except Option 1 : Wildlife safari parksOption 2 : Botanical gardensOption 3 : Sacred grovesOption 4 : Seed banks

The similarity of bone structure in the forelimbs of many vertebrates is an example of Option 1 : HomologyOption 2 : Convergent evolutionOption 3 : AnalogyOption 4 : Adaptive radiation

Which one of the following population interactions is widely used in medical science for the production of antibiotics? Option 1 : ParasitismOption 2 : AmensalismOption 3 : CommensalismOption 4 : Mutualism

Conversion of milk to curd improves its nutritional value by increasing the amount of Option 1 : Vitamin B12Option 2 : Vitamin AOption 3 : Vitamin EOption 4 : Vitamin D

Option 1 : ElephantiasisOption 2 : Ringworm diseaseOption 3 : AscariasisOption 4 : Amoebiasis