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TLS Online TPP Program

#Question id: 11205

What would probably happen if a long neuron had one continuous myelin sheath down the length of the axon with no nodes of Ranvier?

#Part-B Specialized Branches in Biotechnology
  1. The action potential would be propagated nearly instantaneously to the synapse.
  2. There could be no action potential generated at the axon hillock.

  3. The signal would fade because it is not renewed by the opening of more sodium channels.

  4. Only potassium could move across the membrane, but not sodium.
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TLS Online TPP Program

#Question id: 3515

#Part-A Aptitude & General Biotechnology

What proportional of F2 round seeded plant would produce all round plant after self fertilization?
TLS Online TPP Program

#Question id: 3516

#Part-A Aptitude & General Biotechnology

Cross allowed between pure line tall plant with pure line dwarf plant , all F1 having tall phenotype were allowed to self to produced  200 plant The number of F2 plant having pure line tall phenotype?
TLS Online TPP Program

#Question id: 3517

#Part-A Aptitude & General Biotechnology

The following two genotypes are crossed: AaBbCcddX AabbCcDd. What will number of different genotypes among the progeny of this cross?
TLS Online TPP Program

#Question id: 3518

#Part-A Aptitude & General Biotechnology

Assume that the trihybrid cross AA BB rr X aa bb RR is made in a plant species in which A and B are dominant but there is incomplete dominance between R and r. Consider the F2 progeny from this cross, and assume independent assortment. The phenotypes appear in this F2 progeny?
TLS Online TPP Program

#Question id: 3519

#Part-A Aptitude & General Biotechnology

If quadruple heterozygote of genotype Aa Bb Cc Dd is self-fertilized, what is the probability of a quadruple heterozygote Aa Bb Cc Dd offspring is assuming independent assortment of all four pairs of alleles.
TLS Online TPP Program

#Question id: 3520

#Part-A Aptitude & General Biotechnology

flower colour  in plant  RR- red , rr- white , Rr- pink  and height of plant ( TT,Tt-tall)  ,(tt- dwarf), If cross allowed between plant RrTt X Rrtt, then what probability of progeny plant having pink flower and dwarf variety ?