#Question id: 17286
#Part-A Aptitude & General Biotechnology
#Question id: 5733
#Part-B Specialized Branches in Biotechnology
In individuals heterozygous for a chromosome inversion, the homologous chromosomes form a loop in prophase I of meiosis.
Which of the following is effect of inversion?
A. A dicentric and an acentric chromosome in meiosis I as the chiasmata gets terminated when inversion includes centromere
B. Appearance of deletion and duplication in both the cross over products chromosomes when centromere outside of inversion region
C. All recombinant gamete are non-viable gametes when single crossing over within inverted region; irrespective to paracentric or pericentic inversion
D. Nonviable gametes are usually produced, resulting in a depression in observed recombination frequencies.
Which of the above statements are correct?
#Question id: 4347
#Part-A Aptitude & General Biotechnology
According to the lac operon model proposed by Jacob and Monod, what is predicted to occur if the operator is removed from the operon?
#Question id: 5691
#Part-B Specialized Branches in Biotechnology
Which of the following most accurately explains the cause for the abnormal numbers of chromosomes during human reproduction that can result in Down syndrome, Turner’s syndrome, or Klinefelter’s syndrome?
#Question id: 11286
#Part-B Specialized Branches in Biotechnology
Consumption, assimilation, and production efficiencies are measures of ecological efficiency. Following some statements are correct?
(A) Consumption efficiencies for carnivores are typically higher than those of herbivores
(B) Assimilation efficiencies of herbivore are often less than consumption efficiencies
(C) Vertebrates tend to have lower production efficiencies than invertebrates