Practice Questions

TLS Online TPP Program

#Question id: 801

Identify the type of DNA from the structures given below and match the correct form with its characteristics described.

#SCPH05 I Biotechnology

(ii) – The more compact A form of DNA has 11 bp per turn and shows a large tilt of the base pairs with respect to the helix axis.
(i) – The B form, which is observed at high humidity, most closely corresponds to the average structure of DNA under physiological conditions.
(iii) – Z DNA is a left-handed helix and has a zigzag (hence “Z”) appearance and has an anti-conformation of glycosyl bond.
(i) – The A form which is observed under low humidity has a structure similar to the structure that RNA adopts when double-helical.

More Questions

TLS Online TPP Program

#Question id: 756

#SCPH01 Biochemistry

The thermal denaturation of DNA may be reversed by cooling the solution. Rapid cooling allows:

TLS Online TPP Program

#Question id: 28006

#Research Methodology

A null hypothesis is

TLS Online TPP Program

#Question id: 20848

#SCPH01 Biochemistry

In which form does reduction was the major electron accepting process close to a groundwater hydrocarbon spill while methanogenesis predominated downgradient from the spill.

TLS Online TPP Program

#Question id: 14768

#SCPH01 Biochemistry

The information retrieval tool of NCBI GenBank is

TLS Online TPP Program

#Question id: 5083

#I Life Science/ Life Sciences Group – I-V

Which of the following correctly displays the sequence of developmental milestones?