A. Chromosomes occupy chromosome territories in the nucleus and very much entangled with each other. 

B. Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to the nuclear periphery and center of nucleus. 

C. Active genes are often found at the borders and of chromosome territories

D. Active genes from several chromosomes may cluster in inter-chromosomal territories that are enriched in transcription machinery

Choose true and false

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

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: 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: 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: 13153

#General Aptitude

The in-radius of an equilateral triangle is of length 3 cm. Then the length of each of its medians is

TLS Online TPP Program

#Question id: 13154

#Unit 2. Cellular Organization

In starving cells, however, such degradation would deplete essential enzymes and regulatory proteins. Lysosomes therefore also have a selective pathway, which is activated only after a prolonged fast, that imports and degrades cytosolic proteins containing the pentapeptide  , the sequence is