Two-component system regulating response to low Gln,

a) Glutamine dissociates from the sensor domain in the NtrB protein, leading to activation of a histidine kinase transmitter domain in NtrB

b) glutamine binds to a sensor domain of NtrB, causing a conformational change in the protein that inhibits its histidine kinase activity, the regulatory domain of NtrC blocks its DNA-binding domain from binding the glnA enhancers.

c) Activated transmitter domain of NtrB that transfers the γ-phosphate of ATP to a histidine residue (H), this phosphohistidine then transfers the phosphate to an aspartic acid residue (D) in the NtrC protein

d) This causes a conformational change in NtrC that unmasks the NtrC DNA-binding domain so that it can bind to the glnA enhancers

Which of the following combination is correct?

#Question id: 11621

#Unit 8. Inheritance Biology

A genetic trait becomes more strongly expressed or is expressed at an earlier age as it is passed from generation to generation, this is an example of

#Question id: 11620

#Unit 8. Inheritance Biology

The expression of some genes is significantly affected by their parental origin, , the differential expression of genetic material depending on whether it is inherited from the male or female parent, is called

#Question id: 11619

#Unit 8. Inheritance Biology

If a cross between restricted and dusky  ducks  the only progeny will be form from this cross is restricted and mallard, so what will be the genotype of parents?

#Question id: 11618

#Unit 8. Inheritance Biology

A monohybrid cross between two heterozygous  yellow mice forms the progeny in F1 generation  is  yellow and  non-yellow with the genotype YY(Lethal) and yy , so what will be the ratio of this cross?

#Question id: 11617

#Unit 8. Inheritance Biology

Individuals with a particular genotype that express the phenotype expected of that genotype, this is known as

#Question id: 4798

#Unit 8. Inheritance Biology

In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in females. We’ll use the symbol Bb for the beard allele and B for the beardless allele. Another independently assorting autosomal allele that produces a black coat (W) is dominant over the allele for white coat (w). A cross allowed between BBbWw (male) X BBbWw (female). What is proportional of female progeny will beard with black coat?