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TLS Online TPP Program

#Question id: 4802

Why is tetrad analysis useful for studying genetics?

#SCPH06 I Botany

  1. Cells within a tetrad are haploid so genotype is directly reflected in the phenotype.

  2. Cells within a tetrad reflect the events of meiosis.

  3. Analysis of simple systems can elucidate general rules that apply more broadly.

  4. all of the above.

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TLS Online TPP Program

#Question id: 12943

#SCPH01 Biochemistry

Choose the correct order for the steps involve in Insitu hybridization.
1. Cell permeaabilisation
2. Detection of hybridised probe radioactive.
3. Wash excess probe from section
4. Cell fixation
TLS Online TPP Program

#Question id: 16099

#SCPH28 | Zoology

 Following adaptation to a hot climate there is an increase in:
TLS Online TPP Program

#Question id: 9178

#SCPH06 I Botany

A fish swimming into an estuary from a river would have which of the following as its greatest physiological challenge?
TLS Online TPP Program

#Question id: 757

#SCPH28 | Zoology

_______________ a bacterial enzyme, uses the energy of ATP hydrolysis to introduce negative supercoiling into DNA hence removing positive supercoiling generated during replication.
TLS Online TPP Program

#Question id: 3526

#SCPH28 | Zoology

In garden peas, the allele for tall plants (D) is completely dominant to the allele for dwarf plants (d) and the allele for violet flower color (W) is completely dominant to the allele for white flower color (w). In a cross between a tall violet plant, with the genotype DDWw, and a dwarf white plant, what phenotypic ratio of the progeny would be expected from this cross?