During chick development, as cells converge to form the primitive streak, a depression called as:

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#Question id: 1540

#Unit 4. Cell Communication and Cell Signaling

Peptidoglycans  recognize by

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#Question id: 15839

#Unit 8. Inheritance Biology

In the yeast cross of ade2 met14 his3 x + + +, a total of 120 tetrads are analyzed. The following tetrad types are found in the numbers shown below each tetrad. The markers ade2, met14, and his3 are abbreviated a, m, and h and the wild type allele of each gene is indicated by +.

 

Use this categorization and the numbers of each type to determine which (if any) of the three markers are linked. For any linked markers, calculate the distance between them in cM.      

To measure the distance between two linked His– mutations, you cross a his2– mutant to a his4– mutant and then dissect 100 tetrads. Your lab partner records which spore clones are His+ and which are His– ; but then the fool loses the papers on which most of the data is recorded. In the end all he can remember is that there were three different tetrad types an that there was only one tetrad of the type with 2 His+ and 2 His– spore clones.

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#Question id: 33459

#Unit 1. Molecules and their Interaction Relevant to Biology

2-oxy-4-oxy 5-methyl pyrimidine is

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#Question id: 15461

#Unit 2. Cellular Organization

When doing experiments with bacteria,

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#Question id: 20260

#Unit 12. Applied Biology

The modified forms of starch have varied applications in food and other industries. Basic strategies to modify starch quality are 

(i) genetic modification of crops (by breeding or biotechnology)

(ii) food processing (using enzymes and chemicals)

(iii) food supplementation (modification of starch by employing microorganisms)

Which of the following strategies are correct?