You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium.

What is the maximum number of genes that these 20 mutants could represent?

TLS Online TPP Program

#Question id: 27811

#Research Methodology

What is the most common method of data collection in quantitative research?

TLS Online TPP Program

#Question id: 23248

#SCPH28 | Zoology

Pyrosequencing is sequencing by synthesis whereby a PCR template is hybridised to an oligonucleotide and incubated with 

1. DNA polymerase

2.  ATP sulphurylase

3. Luciferase 

4. Apyrase

Which of the following option has correct combination?

TLS Online TPP Program

#Question id: 5045

#I Life Science/ Life Sciences Group – I-V

When the four blastomere pairs of the 8-cell embryo are dissociated, each forms the structures it would have formed had it remained in the embryo, that means it undergoes to-

TLS Online TPP Program

#Question id: 15875

#SCPH05 I Biotechnology

Suspension cultures show both numerical and structural chromosomal changes such as;

TLS Online TPP Program

#Question id: 19203

#SCPH28 | Zoology

Biological compound used in piezoelectric biosensor is