There are few statements is given regarding the peptide bond are given

(a) For most peptide bonds the ratio of cis to trans configurations is approximately 1:1000

(b) Peptide bonds formed between Xaa and proline (Xaa is any amino acid) the cis to trans ratio is 1:4

(c) Co and N atoms of the peptide grouping are both in planar sp2 hybridization 

(d) All three kinds of bonds (N-Ca, Ca-Co, and the Co-N peptide bond) are single bonds

(e) The peptide bond is estimated to have 40% double bond character

Choose which of the following is correct 

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#Question id: 33893

#Unit 2. Cellular Organization

Which of the following DNA sequences would reassociate the fastest during a reassociation kinetics experiment?

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#Question id: 3933

#Unit 3. Fundamental Processes

A gene contains two 100 bp introns and three 50 bp exons. About how long is the mature RNA transcribed from this gene?

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#Question id: 2402

#Unit 2. Cellular Organization

An organism with a cell wall would most likely be unable to take in materials through ________.

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#Question id: 1689

#Unit 4. Cell Communication and Cell Signaling

The intermolecular forces that contribute to the interaction between antibody and antigen:

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#Question id: 15190

#Unit 8. Inheritance Biology

The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?