During the process of isolation of DNA, chilled ethanol is added to
Options
(a) Remove proteins such as histones (b) Precipitate DNA (c) Break open the cell to release DNA (d) Facilitate action […]
Which of the following statements about enzymes is wrong?
Options
(a) Enzymes require optimum pH and temperature for maximum activity (b) Enzymes are denatured at high temperatures (c) Enzymes are mostly proteins but some […]
The largest tiger reserve in India is
Options
(a) Nagarhole (b) Valmiki (c) Nagarjunsagar-Srisailam (d) Periyar
Correct Answer:
Nagarjunsagar-Srisailam
Explanation:
Nagarjunsagar-srisailam Tiger Reserve is the largest Tiger reserve In India and the only Tiger […]
Which organization publishes the Red Data Book?
Options
(a) GEF (b) IUCN (c) UNEP (d) WWF
Correct Answer:
IUCN
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Which one of the following is not a parasitic adaptation?
Options
(a) Loss of unnecessary sense organs (b) Development of adhesive organs (c) Loss of digestive organs (d) Loss of reproductive capacity
Correct […]
The second commitment period for Kyoto Protocol was decided at
Options
(a) Cancun (b) Durban (c) Bali (d) Doha
Correct Answer:
Doha
Explanation:
The Kyoto Protocol is an international agreement linked to the United […]
Which one of the following is a primary consumer in maize field ecosystem?
Options
(a) Lion (b) Grasshopper (c) Wolf (d) Phytoplankton
Correct Answer:
Grasshopper
Explanation:
No explanation available. Be the first to […]
When man eats fish which feeds on zooplankton which have eaten small plants, the producer in the chain is
Options
(a) Zooplankton (b) Small plants (c) Fish (d) Man
Correct Answer:
Small plants
In which of the folowing pair both the species have sp³ hybridization?
Options
(a) H₂S, BF₃ (b) SiF₄, BeH₂ (c) NF₃, H₂O (d) NF₃, BF₃
Correct Answer:
NF₃, H₂O
Explanation:
Applying VSEPR theory, […]
The pair of species that has the same bond order in the following is:
Options
(a) O₂, B₂ (b) CO, NO⁺ (c) NO⁻, CN⁻ (d) O₂, N₂
Correct Answer:
CO, NO⁺
Explanation:
No. […]
2017 Copyright Doctor Dreams Training Academy