PCR efficiency is influenced by several factors, the efficiency declines due to

a) efficiency of amplification declines with an increase in the length of the target sequence.

b) Efficiency of PCR is affected by primer length; it declines if the primers used for PCR arc too long.

c) a temperature higher than the ideal annealing temperature reduces PCR efficiency.

d)  primers used for PCR have complementary regions, dimers will be formed, and PCR efficiency will decline.

#Question id: 10976

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

In a resting adult, the typical ventricular ejection fraction has what value?

#Question id: 2944

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

DNA replication at each origin occurs only once during the cell cycle because of:

#Question id: 4591

#SCPH05 I Biotechnology

Which of the following factors could cause a surge in population size?

#Question id: 7308

#SCPH28 | Zoology

In Arabidopsis thaliana, the transition to flowering involves multiple factors, pathways and meristem identity genes. Following statements regarding to the mechanism and function of meristem identity genes.

 A. FT mRNA is expressed in companion cells of the leaf vein in response to multiple signals, including day length, light quality, and temperature.

 B. The FT–FD complex activates AP1 in the inflorescence meristem and SOC1 in the floral meristem, which triggers LFY gene expression.

 C. LFY and AP1 trigger expression of the floral homeotic genes.

 D. FLC acts as a negative regulator of SOC1 in the meristem and as a negative regulator of FT in the leaves.

 Which of the following is incorrect?

#Question id: 18593

#SCPH28 | Zoology