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.

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#Question id: 8911

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

The larvae of some insects are merely small versions of the adult, whereas the larvae of other insects look completely different from adults, eat different foods, and may live in different habitats. Which of the following most directly favors the evolution of the latter, more radical, kind of metamorphosis?

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#Question id: 6958

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

Vg-1 and wnt are used in both frogs and chicks to establish a body axis, although in chicks this is the antero-posterior axis instead of the dorso-ventral axis. What is the region of the chick embryo that is thus analogous to the Nieuwkoop center?

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#Question id: 15269

#SCPH28 | Zoology

The protein concentration in DNA extraction sample measured by

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#Question id: 5074

#SCPH06 I Botany

The "mid-blastula transition" is the point in development when:

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#Question id: 352

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

One mole (mol) of glucose (molecular mass = 180 daltons) is ________.