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TLS Online TPP Program

#Question id: 19681

By reacting with which of the following, primary amines can be separated from secondary and tertiary amines?

#XL - P Chemistry
  1. Chloroform alone
  2. Methyl iodide
  3. Chloroform and alcoholic KOH
  4. Zinc dust
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TLS Online TPP Program

#Question id: 9276

#XL - R Botany

The carotenoid b-carotene, whose structure and absorption spectrum at,
TLS Online TPP Program

#Question id: 27293

#XL - U Food Technology

Which of the following is also known as invert sugar?
TLS Online TPP Program

#Question id: 6964

#XL - T Zoology

If embryos are disaggregated with chemicals or proteases, and the individual cells are mixed together in culture, what will happen?
TLS Online TPP Program

#Question id: 4605

#XL - S Microbiology

Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?
TLS Online TPP Program

#Question id: 12725

#XL - S Microbiology

Match the following

DNA form

Helix Direction

Number of bases per helix turn

1. B

a. Left Handed

i. 10

2.  A

b. Right Handed

ii. 12

3.  C

c. Left Handed

iii. 14

4. Z

d. Right Handed

iv. 9