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TLS Online TPP Program

#Question id: 11195

Action potentials move along axons ________.

#I Life Science/ Life Sciences Group – I-V
  1. more slowly in axons of large than in small diameter
  2. by activating the sodium-potassium "pump" at each point along the axonal membrane
  3. more rapidly in myelinated than in unmyelinated axons
  4. by reversing the concentration gradients for sodium and potassium ions
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TLS Online TPP Program

#Question id: 11989

#SCPH28 | Zoology

If mayflies lay eggs on roads instead of in water, this behavior could involve which of the following? 
TLS Online TPP Program

#Question id: 12686

#SCPH05 I Biotechnology

The two polynucleotide chains in DNA are usually found in the shape of_____
TLS Online TPP Program

#Question id: 4742

#SCPH28 | Zoology

In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?
TLS Online TPP Program

#Question id: 5340

#SCPH28 | Zoology

Which of the following above pedigree show mode of inheritance?
TLS Online TPP Program

#Question id: 2620

#SCPH28 | Zoology

Which option is correct about catabolite activator protein binds as