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TLS Online TPP Program

#Question id: 11134

Which of the following statements concerning synaptic transmission is correct?

#Part-B Specialized Branches in Biotechnology
  1. When a specific population of synaptic terminals is spread over the considerable surface of a neuron, their collective effects cannot spatially summate and lead to initiation of an action potential
  2. Even if the successive discharges of an excitatory synapse occur sufficiently close in time, they cannot temporally summate and initiate an action potential
  3. A neuron is “facilitated” when its membrane potential is moved in the less negative or depolarizing direction
  4. Even when rapidly stimulated by excitatory synaptic input for a prolonged period of time, neurons typically do not exhibit synaptic fatigue
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TLS Online TPP Program

#Question id: 12486

#Part-B Specialized Branches in Biotechnology

Which of the following process occur in prometaphase?
TLS Online TPP Program

#Question id: 12487

#Part-A Aptitude & General Biotechnology

Neurofibromatosis type 1 is one of the most common autosomal dominant disorders. A woman with neurofibromatosis type 1 has an unaffected partner. Which of the following is correct regarding their children?
TLS Online TPP Program

#Question id: 12487

#Part-B Specialized Branches in Biotechnology

Neurofibromatosis type 1 is one of the most common autosomal dominant disorders. A woman with neurofibromatosis type 1 has an unaffected partner. Which of the following is correct regarding their children?
TLS Online TPP Program

#Question id: 12488

#Part-A Aptitude & General Biotechnology

Retinoblastoma usually occurs as a sporadic event but in around 10% of cases there is a positive family history due to autosomal dominant inheritance. In these families the penetrance is approximately 80% (= 0.8). A woman with retinoblastoma, whose father and grandfather were also affected, has an unaffected partner with no relevant family history. Which of the following is correct regarding their children?
TLS Online TPP Program

#Question id: 12489

#Part-A Aptitude & General Biotechnology

Achondroplasia shows autosomal dominant inheritance with complete penetrance. A man with achondroplasia has an unaffected partner of normal height. Their first two children are not affected. Which of the following is correct?
TLS Online TPP Program

#Question id: 12490

#Part-A Aptitude & General Biotechnology

Tay-Sachs disease shows autosomal recessive inheritance. Parents of a newly diagnosed affected child are referred for genetic counselling. It would be correct to tell them that: