Q51) The ________ brings about dilation of blood vessels? 1. Histamine 2. Gastrin 3. Elastin 4. Heparin

Home » Q51) The ________ brings about dilation of blood vessels? 1. Histamine 2. Gastrin 3. Elastin 4. Heparin

Correct option: 1

Explanation: when histamine is released from its granules it causes dilation of blood vessels, which increases the permeability and the blood pressure is lowered.

i

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More Material

Q80) Eukaryotic cells do not possess ________ . a. Ribosomes b. Mesosomes c. Fimbriae d. Mitochondria 1. Only b 2. b and c 3. a and b 4. only d

Q79) Sexual reproduction is absent in the membranes of _________ . 1. Deuteromycetes 2. Phycomycetes 3. Basidiomycetes 4. Ascomycetes

Q78) The enzymes needed for Krebs cycle are located in ______ . 1. Oxysomes of mitochondria 2. Matrix of mitochondria 3. Cytoplasm of cell 4. Outer membrane of mitochondria

Q77) Damage to VI cranial nerve in human, may affect the movements of ________ . 1. Neck 2. Jaw 3. Tongue 4. Eye

Q76) The size of genome of Methanococcus jannaschii is ______ . 1. 1830 kb 2. 1660 kb 3. 569 kb 4. 12,500 kb

Q75) In Morgan’s experiment on Drosophilia cross between yellow bodied, white eyed female with wild type male gives ______ % of parental gene combination in F2 generation. 1. 37% 2. 1.3% 3. 62.8% 4. 98.7%

Q74) A man working in a furnace room suffered from asphyxiation. What should be the main reason? 1. More O2 level in the furnace room. 2. CO poisoning due to high CO level in the furnace room. 3. More O2 as well as fumes in the furnace room. 4. Less O2 level in the furnace room.

Q73) In plant breeding, biofortification is a method ______ . 1. To increase the nutritional value of crop plants. 2. To make the crop plants disease resistant. 3. To improve the yield of the crop plant.

Q72) Genetic material present in prokaryotes _______ is 1. Nucleosome 2. Nucleus 3. Nucleolus 4. Nucleoid

Q71) Norman Borlaug developed semi-dwarf varieties of wheat in _____ . 1. Mexico 2. USA 3. Philippines 4. India

Q70) The number of phenotypic and genotypic individuals produced during a typical Mendelian monohybrid cross will be __ and _ respectively. 1. 2 and 2 2. 3 and 2 3. 2 and 3 4. 3 and 3

Q69) Select the incorrect statement 1. Hisardale is an example of cross-breeding experiment. 2. Genetic mother in MOET technique serves for multiple ovulation. 3. Apis mellifera and Apis florea domesticated species of honey bee. 4. Layers management includes processes like culling and debeaking.

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