The nitrogenase enzyme complex fixes N2 produces ammonia, The nitrogenase enzyme complex catalyzes this reaction by following characteristics given below;

a) It can be separated into two components—the Fe protein and the MoFe protein— neither of which has catalytic activity by itself

b) Fe protein is the smaller of the two components and has two identical subunits, each contains an iron–sulfur cluster, which participates in the redox reactions

c) The Fe protein is irreversibly inactivated by O2 while MoFe protein is activated by O2

d) MoFe protein has four subunits, each subunit has two Mo–Fe–S clusters

e) Ferredoxin serves as an electron donor to the Fe protein, and Fe protein reduces the MoFe protein without any hydrolysing ATP

f) Only prokaryotes have nitrogenase enzyme

Which of the following characteristics of nitrogenase enzyme complex is incorrect?

#Question id: 5358

#Unit 8. Inheritance Biology

In the following pedigree, individuals with shaded show presence of a recessive autosomal trait. If all individual is coming from outside the family is homozygous for normal. The calculated risk of occurrence of this trait for (?) individual is 

#Question id: 5359

#Unit 8. Inheritance Biology

Which of the following mode of inheritance and selected individuals must be carrier showing in above pedigree?

#Question id: 5360

#Unit 8. Inheritance Biology

Following some different genetic disorder traces in families. 

 Which of the following possible mode of inheritance in the Family A, B, C and D respectively

#Question id: 5361

#Unit 8. Inheritance Biology

The pedigree shows the inheritance of a RFLP marker through three generations in a single family. A total of 8 alleles (numbered to the left of the blots) are present in the family. The RFLPs of each member of the family are placed directly below his (squares) or her (circles) symbol and RFLP numbers. In Above pedigree, which of the following are not children of second generation parent?

#Question id: 5362

#Unit 8. Inheritance Biology

From the following select the possible mode of inheritance and the probability that the daughter in generation III will show the trait.

#Question id: 5363

#Unit 8. Inheritance Biology

A Southern blot using a probe that binds to the region spanning the mutation causing albinism detects one DNA fragment in homozygous normal individuals (A/A) and two fragments in albino individuals (a/a). Following banding pattern of three offspring of parents? Which of the following correct regarding parents?