There are various drawbacks still in fluorescence microscopy such as

1.  Light emitted comes from molecules above and below the plane of focus

2. Blurred image due to superposition of fluorescent images

Which of the above statement is/ are correct?

TLS Online TPP Program

#Question id: 15389

#Unit 8. Inheritance Biology

Why is tetrad analysis useful for studying genetics?

TLS Online TPP Program

#Question id: 15386

#Unit 8. Inheritance Biology

You set up a mapping cross involving your favorite gene (YFG) in Neurospora and determine the following octad types: 4:4 arrangement 83; 2:4:2 arrangement 7; 2:2:2:2 arrangement 10. What is the distance between your gene and the centromere?

TLS Online TPP Program

#Question id: 13151

#Unit 8. Inheritance Biology

A series of two-point crosses were carried out among five loci (a, b, c, d and e) producing the following recombination frequencies. Using these recombination frequencies, map these five loci, showing  their linkage groups, the order of the loci in each linkage group is;

What is the correct order of the loci?

TLS Online TPP Program

#Question id: 13150

#Unit 8. Inheritance Biology

A fruit fly Drosophila melanogaster showing  three point test cross  st+-e+-ss+  was crossed with triplet recessive mutant st-e-ss. The F1 hybrid  was the backcross with the recessive mutant and the phenotype recorded as follows;

The distance in map unit (mu) between  st+  to  e+ and e+ to ss+ is

TLS Online TPP Program

#Question id: 13149

#Unit 8. Inheritance Biology

A three point test cross was made between the  st^+-e^+-ss^+  and  st-e-ss , the genotype of the double cross over  will be;  st^+-e-ss^+  and st-e^+-ss. Based on this, determine the order of the genes.

TLS Online TPP Program

#Question id: 13148

#Unit 8. Inheritance Biology

During  a three point test cross is carried out. The parental cross was  AABBCC  X  aabbcc , the F1 progeny is AaBbCc. What will be the no. of given genotype in 100 progeny?

i) AaBbCc               ii) aaBbcc