TLS Online TPP Program

#Question id: 11933


The excitatory or inhibitory action of a neurotransmitter is determined by which of the following?

#Part-A Aptitude & General Biotechnology
  1. Function of its postsynaptic receptor
  2. Molecular composition
  3. Shape of the synaptic vesicle in which it is contained
  4. Distance between the pre- and post-synaptic membranes
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TLS Online TPP Program

#Question id: 5715

#Part-B Specialized Branches in Biotechnology

Following some abnormality is due to Gene rearrangement on chromosome. 

A, Affecting the expression of gene

B. Disrupt the function of gene

C. Reduced recombination between gene present in inverted region

D. Cross over suppressor 

Which of the following above abnormality is may be associated with inversion?

TLS Online TPP Program

#Question id: 5716

#Part-B Specialized Branches in Biotechnology

Which of the meiotic pairing possibilities in tetraploids and their consequence is correct?

A-chromosomes pair as bivalents, segregate normally producing diploid gametes.

B- Chromosomes pair as quadrivalent, segregates normally producing tetraploid gametes.

C-Chromosome pair as Trivalents form, segregation leads to nonfunctional aneuploid gametes

 D- Chromosome pair as Trivalents form, segregation leads to producing diploid gametes

TLS Online TPP Program

#Question id: 5720

#Part-B Specialized Branches in Biotechnology

Which two of the following are the CORRECT statements ?

P. Nondisjunction in the parental meiosis is not essential to produce diploid organisms

Q. Nondisjunction in the parental meiosis is essential to produce aneuploid organisms

R. Nondisjunction in the parental meiosis is essential to produce hexaploid organism

S. Nondisjunction in the parental meiosis is essential to produce tetraploid organisms

TLS Online TPP Program

#Question id: 5721

#Part-B Specialized Branches in Biotechnology

There is paracentric inversion heterozygote ABCDEFG/ABFEDCG involved in double recombination during meiosis I within inverted region result in

A. dicentric and an acentric chromosome in meiosis I as the chiasmata get terminated.

B. appearance of deletion in both the cross over product

C. all gamete are viable

D. nonviable gametes from crossover products.

Which of the above statements are correct?

TLS Online TPP Program

#Question id: 5724

#Part-B Specialized Branches in Biotechnology

Species I is diploid (2n  = 8) with chromosomes

AABBCCDD; related species II is diploid (2n = 8) with chromosomes MMNNOOPP. Individuals with the following sets of chromosomes represent what types of chromosome mutations?

A-   AAABBCCDD        B-   AABBCCDDMNOP

C-   AAABBCCDDD

TLS Online TPP Program

#Question id: 5724

#Part-A Aptitude & General Biotechnology

Species I is diploid (2n  = 8) with chromosomes

AABBCCDD; related species II is diploid (2n = 8) with chromosomes MMNNOOPP. Individuals with the following sets of chromosomes represent what types of chromosome mutations?

A-   AAABBCCDD        B-   AABBCCDDMNOP

C-   AAABBCCDDD