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TLS Online TPP Program

#Question id: 802

A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which is a possible sequence and structure for this DNA molecule?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. If the single-stranded molecule has the sequence 5’-(ATGC)10, then its double- stranded form could assume a Z-DNA structure.

  2. If the single-stranded molecule has the sequence 5’-(GATC)10, then its double-stranded form could assume an H-DNA structure.

  3. If the single-stranded molecule has the sequence 5’-(CTGA)10, then its double-stranded form could assume a hairpin structure.

  4. If the single-stranded molecule has the sequence 5’-(TGAC)10, then its double-stranded form could assume a cruciform structure.

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TLS Online TPP Program

#Question id: 35

#Unit 1. Molecules and their Interaction Relevant to Biology

Arrange the following molecular components of an E. coli cell in terms of their percentage of total weight cell.
TLS Online TPP Program

#Question id: 12656

#Unit 6. System Physiology – Plant

Which one of the following lipases is activated on the plasma membrane, during octadecanoid pathway leads to the activation of jasmonic acid?
TLS Online TPP Program

#Question id: 8856

#Unit 9. Diversity of Life Forms

Which of these can be observed in the mesohyl of various undisturbed sponges at one time or another?

1. amoebocytes

2. spicules

3. spongin

4. zygotes

5. choanocytes
TLS Online TPP Program

#Question id: 4661

#Unit 3. Fundamental Processes

In bacteria two components regulatory systems contain a domain can have function such as controlling the direction in which the bacterium swims in response to a concentration gradient of nutrients is known as
TLS Online TPP Program

#Question id: 19700

#Unit 13. Methods in Biology

Different leads are used to record ECG of humans, these leads can be either bipolar or unipolar. Which one of the following is NOT unipolar leads?