In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?

TLS Online TPP Program

#Question id: 14139

#SCPH05 I Biotechnology

Which of the following statement is incorrect about sequence similarity and sequence identity? 

TLS Online TPP Program

#Question id: 1587

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

In the human disease known as lupus, there is an immune reaction against a patientʹs own DNA from broken or dying cells. This kind of response typifies which kind of irregularity?

TLS Online TPP Program

#Question id: 586

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

At the beginning of an enzyme-catalyzed reaction the ________ is negligible.

TLS Online TPP Program

#Question id: 10388

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

Phytochrome can interconvert between Pr and Pfr forms, Pr receives red light and converts into Pfr while Pfr receives far-red light and then converts into Pr, so which form of phytochrome is responsible for seed germinations?

TLS Online TPP Program

#Question id: 840

#SCPH01 Biochemistry

Which of the following  type of chaperon that are involved in functions to unfold proteins in preparation for their transport through membranes and to subsequently refold them after transport?