Shell coiling in snail is determined by genetic maternal effect for a single loci having D allele for dextral coiling but S allele for sinistral coiling. D dominant over S. which of the following cross would produced all progeny that is dextral coiling ?

I- DD Male X SS female

II- DD Male X DS female

III- SS Male X DD female

IV - DS Male X DS female

TLS Online TPP Program

#Question id: 1268

#Unit 4. Cell Communication and Cell Signaling

The collagen triple-helix domain

a. is rich in glycine.                             b. is rich in proline.

c. is rich in hydroxyproline.                d. is an alpha helix.

TLS Online TPP Program

#Question id: 19716

#Unit 3. Fundamental Processes

The telomeric sequence is found in plants and humans so conserved in nature, while Drosophila telomeres are an exception derived from 

TLS Online TPP Program

#Question id: 14966

#Unit 2. Cellular Organization

The bacterial cell wall is composed of a macromolecular network called peplidoglycan (also known as murein) which is present either alone or in combination with other substances

TLS Online TPP Program

#Question id: 259

#Unit 1. Molecules and their Interaction Relevant to Biology

As B-DNA is gradually heated, the absorbance at 260 nm

TLS Online TPP Program

#Question id: 986

#Unit 1. Molecules and their Interaction Relevant to Biology

Inhibition of ATCase by a ________ nucleotide and activation of ATCase by a ________ nucleotide keep the balance of purine and pyrimidine pools in E. coli.