Biosynthesis of all N-linked oligosaccharides begins in the rough ER with a preformed branched oligosaccharide precursor Glc3Man9(GlcNAc)2, Which of the following statements is incorrect about these biosynthesis?

a) the oligosaccharide precursor is assembled on a membrane- attached anchor called dolichol phosphate

b) First sugar residue is attached to dolichol by a glycosidic bonds & the other

sugars are added by high-energy pyrophosphate

c) Two N- acetylglucosamine (GlcNAc) and five mannose residues are added one at a time to a dolichol phosphate on the lumen

d) Four mannose and three glucose  residue are added one to a dolichol phosphate on the luminal side

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#Question id: 26802

#Unit 8. Inheritance Biology

The exchange of bacterial genes clearly required direct contact, that is given by

TLS Online TPP Program

#Question id: 26803

#Unit 8. Inheritance Biology

In some sheep, the presence of beard is produced by an autosomal allele that is dominant in males and recessive in females. A beard female is crossed with a homozygous beardless male. One of the resulting F1 females is crossed with a beardless male. What proportion of the male and female progeny from this cross will have beard in F2 generation?

TLS Online TPP Program

#Question id: 26804

#Unit 8. Inheritance Biology

In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in females. If  cross the beardless female with heterozygous beard male, what will be the proportion of female beard in F1 generation?

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#Question id: 26805

#Unit 8. Inheritance Biology

Which of the following mutation majorly involved for causing deletion or duplication?

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#Question id: 26806

#Unit 8. Inheritance Biology

Which of the following cell cycle stage is choosen for seeing chromosomal mutation?Which of the following cell cycle stage is choosen for seeing chromosomal mutation?

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#Question id: 26807

#Unit 8. Inheritance Biology

In case of mammals, which of the following signalling molecules are responsible for making decision for entry into meiosis?