Practice Questions

TLS Online TPP Program

#Question id: 15121

Which of the following examples would NOT be consistent with a gene dosage effect?

#Unit 8. Inheritance Biology

Males with one normal allele for the X linked gene dystrophin are unaffected, while females (who shut off one of their two X chromosomes) with one normal allele for dystrophin may be mildly affected with muscular dystrophy.
Flower colour in four-o-clocks seems to be incompletely dominant.
In fruit flies, homozygotes for an allele that produces a small amount of functional protein are severely abnormal but survive to adulthood, while homozygotes for an allele that produces no protein at all die as embryos.
In bels Males normal are haploid while females normally are diploid

More Questions

TLS Online TPP Program

#Question id: 28158

#Unit 1. Structure and Function of Biomolecules

competitive inhibition may be

a. linear

b. parabolic

c. hyperbolic

d. zig-zag

TLS Online TPP Program

#Question id: 28159

#Unit 1. Structure and Function of Biomolecules

The given plot and statement are made after performing the DST calorimetry of a protein

a. X represents perfect folding of protein

b. X represents breaking of a bond

c. Y represents perfect folding of protein

d. Y represents perfect breaking of a bond

Which of the following is correct

TLS Online TPP Program

#Question id: 28160

#Unit 1. Structure and Function of Biomolecules

'Protein folding is not random, must have pathways' this statement can be explained by

TLS Online TPP Program

#Question id: 28161

#Unit 1. Structure and Function of Biomolecules

In Parkinson disease, the misfolded form of the protein Alpha-synuclein aggregates into spherical filamentous masses called

TLS Online TPP Program

#Question id: 10970

#Unit 1. Structure and Function of Biomolecules

A mother of blood type A+ who has always been perfectly healthy just delivered her second child. The father is of blood group O−. Knowing that the child is of blood group O− (O, Rh−), what would you expect to find in this child?

TLS Online TPP Program

#Question id: 10413

#Unit 1. Structure and Function of Biomolecules

Following are certain statements are related to the effect of red and far-red light;

a) under a dense canopy much of the red light is absorbed by plant pigments, resulting in transmittance of mostly far-red light

b) Pr (red) has highest photon flux at 680 nm while Pfr (far-red) has highest photon flux at 730nm

c) Pfr far-red light–absorbing form, which is considered to be the physiologically active form of phytochrome

d) R:FR ratio is strongly affected by the presence of a canopy because chlorophyll absorbs far-red but not red light

Which one of the combinations of above statements is incorrect?