Tag: GATE Life Science Previous Year Papers with Solutions

Q.78 A woman with blood group A gave birth to a baby with blood group AB. The blood group of the father would be (A) only AB (B) only B […]

Q.77 One of the most remarkable features of evolution is the formation of amnion and allantoin. This appeared for the “first time” in evolutionary time scale in (A) reptiles (B) […]

Q.76 The characteristic feature of deuterostomes is depicted by (A) coelom formed by the hollowing out of a previously solid cord of mesodermal cells (B) spiral and determinate cleavage (C) […]

Q.75 The minimal inhibitory concentration (MIC) of an antibiotic X against Clostridium tetani, Staphylococcus sp., Shigella sp., and Streptococcus sp. is 𝟐𝟓, 𝟏𝟓, 𝟐 and 𝟏𝝁 𝐠/𝐦𝐥, respectively. Assuming that […]

Q.74 Assume that a bacterial culture has a mean generation time of 2 hours. If the number of bacteria present after 24 hours of culture are 𝟒. 𝟏 × 𝟏𝟎𝟕 […]

Q.73 Assume that the average DNA content of a single microbial cell is 4 femtogram. A soil sample analyzed for its microbial community DNA is found to contain 𝟎. 𝟑𝟐𝝁 […]

Q.72 The transformation efficiency of competent cells prepared in a laboratory is 𝟏𝟎4 𝐂𝐅𝐔/𝝁𝐠 of plasmid DNA. If 𝟎. 𝟎𝟏𝝁 𝐠 of this plasmid is used to transform these competent […]

Q.71 One-ml sample of a bacterial culture was serially diluted to 𝟏𝟎𝟓 times, and 46 colonies were obtained after plating this diluted sample on an agar medium. The number of […]

Q.70 Match the terms given in Group I with the descriptions from Group II. Group I (P) Photoautotrophs (Q) Chemoautotrophs (R) Photoheterotrophs (S) Chemoheterotrophs Group II (I) Use inorganic chemical […]

Q.69 Match the enzymes given in Group I with the events from Group II. Group I (P) UvrABC endonuclease (Q) Reverse transcriptase (R) AP endonuclease (S) ATP sulfurylase Group II […]