Practice Questions

TLS Online TPP Program

#Question id: 3675

Which describes the role of primase during replication?

#3. Fundamental Processes

It catalyzes the formation of phosphodiester bonds using NTPs as substrates.
It coordinates synthesis of the leading strand and the lagging strand.
It functions as a holoenzyme that polymerizes in the 3’→ 5’direction.
It uses an exonuclease activity to remove incorrect nucleotides.

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TLS Online TPP Program

#Question id: 21813

#12. Applied Biology

Which one of the following sensors measures acceleration and vibration?

TLS Online TPP Program

#Question id: 21814

#12. Applied Biology

A biosensor used for the detection of S-nitrosothiols have immobilized glutathione peroxidase enzyme containing selenocysteine residue that catalytically produces

TLS Online TPP Program

#Question id: 21815

#12. Applied Biology

A new biosensor is described for the detection of S-nitrosothiols based on their decomposition by immobilized _________enzyme containing selenocysteine residue.

TLS Online TPP Program

#Question id: 22937

#5. Developmental Biology

Gene for regulatory pathway that promotes flowering of Arabidopsis in long days:

TLS Online TPP Program

#Question id: 22938

#5. Developmental Biology

Genes that regulate flowering, have different transcription factors and functions:

Gene	Transcription Factor Family	Functions
1. CONSTANS (CO)	i- bHLH	P- Activates flowering in response to long photoperiods
2. FLOWERING D (FD)	ii- Zinc finger	Q- Receptor for florigen, activates flowering via AP1
3. PHYTOCHROME INTERACTING FACTOR4 (PIF4)	iii- bZIP	R- Activates florigen in response to high temperature
4. FLOWERING LOCUS C	iv- MADS	S- Floral repressor

Choose correct match:

TLS Online TPP Program

#Question id: 22939

#5. Developmental Biology

CO gene expression appears to be highest in the companion cells of the phloem of leaves and stems, the downstream target gene of CONSTANS is