TLS Online TPP Program

#Question id: 6970


Neural crest cells will become:

#I Life Science/ Life Sciences Group – I-V
  1. neurons in the sympathetic ganglia of the autonomic nervous system
  2. neurons in the dorsal root ganglia of the peripheral nervous system
  3. pigment cells in the dermis
  4. all of the above are derived from neural crest cells
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TLS Online TPP Program

#Question id: 3265

#SCPH06 I Botany

If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?

TLS Online TPP Program

#Question id: 3265

#SCPH28 | Zoology

If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?

TLS Online TPP Program

#Question id: 3266

#SCPH06 I Botany

One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is

TLS Online TPP Program

#Question id: 3266

#SCPH28 | Zoology

One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is

TLS Online TPP Program

#Question id: 3267

#SCPH06 I Botany

In a typical Mendelian population, individuals carrying gene ‘a’ in homozygous condition suffer from phenylketonurea. Those with A in homozygous condition are normal. Others, who are heterozygotic with Aa, are carriers. If the frequency of ‘a’ in a population is 0.20, what is the percentage of normal individual in the population?

TLS Online TPP Program

#Question id: 3267

#SCPH28 | Zoology

In a typical Mendelian population, individuals carrying gene ‘a’ in homozygous condition suffer from phenylketonurea. Those with A in homozygous condition are normal. Others, who are heterozygotic with Aa, are carriers. If the frequency of ‘a’ in a population is 0.20, what is the percentage of normal individual in the population?