TLS Online TPP Program

#Question id: 5700


During meiosis, homologous chromosomes pair up along their lengths. The most plausible explanation for the karyotype structure shown above is that

#Part-B Specialized Branches in Biotechnology
  1. portions of non-homologous chromosomes have been translocated

  2. one of the two homologous chromosomes has suffered a deletion

  3. one of the two homologous chromosomes has undergone an inversion

  4. the homologous chromosomes have each suffered a gene duplication

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TLS Online TPP Program

#Question id: 4746

#Part-B Specialized Branches in Biotechnology

Two independent pure line varieties having deep red and brown phenotype in their seed coat were cross, the all f1 progeny is deep red. The F2 progeny obtain from selfing show deep red and brown in ratio of 15:1. Which of the following observation is correct?

TLS Online TPP Program

#Question id: 4746

#Part-A Aptitude & General Biotechnology

Two independent pure line varieties having deep red and brown phenotype in their seed coat were cross, the all f1 progeny is deep red. The F2 progeny obtain from selfing show deep red and brown in ratio of 15:1. Which of the following observation is correct?

TLS Online TPP Program

#Question id: 4747

#Part-A Aptitude & General Biotechnology

How does incomplete dominance differ from incomplete penetrance?

TLS Online TPP Program

#Question id: 4748

#Part-A Aptitude & General Biotechnology

Eye color in Drosophila present on X chromosome, Red eye color is dominant over white eye color. There is non disjunction in Meiosis I in female and normal meiosis in male. Female is white eye color was cross with red eye male. What will be expected phenotype in their progeny?

TLS Online TPP Program

#Question id: 4799

#Part-A Aptitude & General Biotechnology

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: 4800

#Part-A Aptitude & General Biotechnology

You set up a mapping cross involving two genes of interest in Saccharomyces and determine the following tetrad types: 8 nonparentalditype; 12 tetratype; 80 parental ditype. Calculate the most accurate map distance between these two genes.