TLS Online TPP Program

#Question id: 10985


What is the membrane potential (threshold level) at which the S-A node discharges?

#SCPH28 | Zoology
  1. −40 mV
  2. −55 mV
  3. −65 mV
  4. −85 mV
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TLS Online TPP Program

#Question id: 5218

#SCPH28 | Zoology

Several of the different globin genes are expressed in humans, but at different times in development. What mechanism could allow for this?

TLS Online TPP Program

#Question id: 5219

#SCPH06 I Botany

What is it that can be duplicated in a genome?

TLS Online TPP Program

#Question id: 5219

#SCPH28 | Zoology

What is it that can be duplicated in a genome?

TLS Online TPP Program

#Question id: 5220

#SCPH06 I Botany

In comparing the genomes of humans and those of other higher primates, it is seen that humans have a large metacentric pair we call chromosome #2 among our 46 chromosomes, while the other primates of this group have 48 chromosomes and any pair like the human #2 pair is not present; instead the primate groups each have two pairs of midsize acrocentric chromosomes. What is the most likely explanation?

TLS Online TPP Program

#Question id: 5220

#SCPH28 | Zoology

In comparing the genomes of humans and those of other higher primates, it is seen that humans have a large metacentric pair we call chromosome #2 among our 46 chromosomes, while the other primates of this group have 48 chromosomes and any pair like the human #2 pair is not present; instead the primate groups each have two pairs of midsize acrocentric chromosomes. What is the most likely explanation?

TLS Online TPP Program

#Question id: 5221

#SCPH06 I Botany

Unequal crossing over during Prophase I can result in one sister chromosome with a deletion and another with a duplication. A mutated form of hemoglobin, known as hemoglobin Lepore, is known in the human population. Hemoglobin Lepore has a deleted set of amino acids. If it was caused by unequal crossing over, what would be an expected consequence?