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TLS Online TPP Program

#Question id: 5200

What is the difference between a linkage map and a physical map?

#Unit 11. Evolution and Behavior

  1. For a linkage map, markers are spaced by recombination frequency, whereas for a physical map they are spaced by numbers of base pairs (bp).

  2. For a physical map, the ATCG order and sequence must be achieved, but not for the linkage map.

  3. For a linkage map, it is shown how each gene is linked to every other gene.

  4. For a physical map, the distances must be calculable in units such as nanometers.

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TLS Online TPP Program

#Question id: 11049

#Unit 6. System Physiology – Plant

Match the CORRECT combination of the phloem elements with its function.

            PHLOEM ELEMENTS                                                  FUNCTIONS

P) sieve tube elements                                    i) for protection and strengthening of the tissue

Q) sieve cells                                                  ii) store and release food molecules

R) companion cells                                        iii) food translocation in angiosperm

S) Phloem parenchyma cells                          iv) latex containing cells

T) Phloem fibers and sclereids                       v) help in flow of solute and show high, metabolic activity

U) laticifers                                                     vi) food translocation on gymnosperm
TLS Online TPP Program

#Question id: 19129

#Unit 12. Applied Biology

Physical components in a biosensor include
TLS Online TPP Program

#Question id: 1094

#Unit 4. Cell Communication and Cell Signaling

Not all intercellular signals require transduction. Which one of the following signals would be processed without transduction?
TLS Online TPP Program

#Question id: 13206

#Unit 6. System Physiology – Plant

Given below are some of the statements that regulate the sucrose loading mechanism;
A) The solute potential or, more likely, the turgor pressure of the sieve elements
B) Sucrose concentration in the apoplast
C) The available number of symporter protein molecules
Possible observation given on how to avoid regulation;
i) increase in sieve element turgor above a certain threshold would lead to a compensatory increase in loading
ii) High sucrose concentrations in the apoplast would increase phloem loading
iii) SUT1 transporter mRNA and protein have been lower after 15 hours of darkness than after a light treatment. These data suggest that the concentration of SUT1 transporter molecules could regulate loading
iv) Decrease in sieve element turgor below a certain threshold would lead to a compensatory increase in loading
v) The transporter mRNA and protein high in darkness than lower in the light treatment
Which of the following combinations represents correct observation?
TLS Online TPP Program

#Question id: 3406

#Unit 11. Evolution and Behavior

If 50 Invidual migrate from population A (allelic frequency P= .70 and q = .30  to population B with density 950 individual and allelic frequency  p=.40 q= .60. What is allelic frequency of P allele of population B after migration?