2023mediumHuman heart is made up of how many chambers?(a)Only four(b)Only one(c)Only three(d)Only twoShow answer Save Listen ShareOpen ↗
2018mediumDouble-helical structure of DNA was given by whom?(a)Jacob and Monod(b)Watson and Crick(c)H.G. Khorana(d)None of the above UP PCS (Pre)-2018Show answer Save Listen ShareOpen ↗
2012mediumWho had proposed for the first time the double helix model of DNA?(a)Watson and Crick(b)Fischer and Haldane(c)Lamarck and Darwin(d)Hugo de VriesShow answer Save Listen ShareOpen ↗
2012mediumJames D. Watson and Francis Crick are associated with the discovery of:(a)Vaccine(b)Structure of DNA(c)Anti-malarial drugs(d)PenicillinShow answer Save Listen ShareOpen ↗
1995mediumWhich chromosome determines the male sex in humans?(a)X-Chromosome(b)Y-Chromosome(c)W-Chromosome(d)Z-ChromosomeShow answer Save Listen ShareOpen ↗
1994mediumChromosome is composed of:(a)Protein only(b)DNA and protein(c)DNA, RNA and Histone(d)DNA, RNA, Histone and Non-histoneShow answer Save Listen ShareOpen ↗
1991mediumThe number of chromosome in human body is-(a)23(b)46(c)44(d)42Show answer Save Listen ShareOpen ↗