Following statements are regarding to the molecular basis of the coincidence model in Arabidopsis.

A. In Arabidopsis under short days, there is little overlap between CO mRNA expression and daylight.

B. CO protein does not accumulate to sufficient levels in the phloem to promote the expression of the transmissible floral stimulus and the plant remains vegetative.

C. Under long days, the peak of CO mRNA abundance (at hours 12 through 16) overlaps with daylight (sensed by phyA and cryptochrome [cry]), allowing CO protein to accumulate.

D. CO activates FLC mRNA expression in the phloem, which causes flowering when the FT protein is translocated to the apical meristem.

Which of the following is incorrect?

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#Question id: 668

#Unit 1. Molecules and their Interaction Relevant to Biology

What feature does a Ramachandran plot display?

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#Question id: 669

#Unit 1. Molecules and their Interaction Relevant to Biology

Ramachandran determined the ʺallowedʺ values of the phi and psi angles primarily by considering ________.

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#Question id: 670

#Unit 1. Molecules and their Interaction Relevant to Biology

The distance along a helix axis for one complete turn is called the ________.

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#Question id: 671

#Unit 1. Molecules and their Interaction Relevant to Biology

Which was a major scientific accomplishment by Linus Pauling?

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#Question id: 672

#Unit 1. Molecules and their Interaction Relevant to Biology

An ideal α-helix has a pitch of 0.54 nm and a rise of 0.15 nm. What is the length along the helix axis for a segment of an ideal α-helix that contains 30 amino acids?

TLS Online TPP Program

#Question id: 673

#Unit 1. Molecules and their Interaction Relevant to Biology

How many complete turns are there in an ideal α-helix that contains 15 amino acids and has a pitch of 0.54 nm and a rise of 0.15 nm?