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

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TLS Online TPP Program

#Question id: 26818

#Unit 8. Inheritance Biology

A mutant phenotype is produced by an individual of the blood group AB, due to some genetics effect it produces only one copy of the gene another copy of the gene is missing. this condition is known as

TLS Online TPP Program

#Question id: 27918

#Unit 11. Evolution and Behavior

What does evolution indicate?

TLS Online TPP Program

#Question id: 23188

#Unit 13. Methods in Biology

What is the major advantage of structured illumination microscopy (SIM)?

TLS Online TPP Program

#Question id: 3658

#Unit 3. Fundamental Processes

In E. coli, the UvrABC endonuclease removes _____________and other bulky lesions by recognizing the distortion these produce in the double helix.

TLS Online TPP Program

#Question id: 28391

#Unit 5. Developmental Biology

The leading edge of invaginating cells crawls up onto the blastocoel roof and formed dorsal mesoderm, this process is done by______