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TLS Online TPP Program

#Question id: 784

Which is not a difference between B-DNA and A-DNA?

#XL - T Zoology

  1. A-DNA forms under more dehydrating conditions than B-DNA.

  2. For polynucleotide strands containing the same number of nucleotides, the A-DNA strand will be shorter from end-to-end than the corresponding B-DNA

  3. Both are helical, but B-DNA is right-handed and A-DNA is left-handed.

  4. The planes of the nitrogenous bases are not perpendicular to the helix axis in A-DNA.

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TLS Online TPP Program

#Question id: 2147

#XL - S Microbiology

Movement of water across membranes is facilitated by proteins called:
TLS Online TPP Program

#Question id: 15728

#XL - S Microbiology

Single cells can be cultured using the following techniques:
(1) Filter paper raft-nurse tissue technique
(2) Microchamber technique
(3) Microdrop method
(4) Bergman's plating technique
(5) Thin layer liquid medium
Select the option with correct choices.
TLS Online TPP Program

#Question id: 11280

#XL - R Botany

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?
TLS Online TPP Program

#Question id: 3615

#XL - R Botany

What are alleles?
TLS Online TPP Program

#Question id: 9603

#XL - S Microbiology

The scientific discipline concerned with naming organisms is called