The rise and pitch of B-DNA are 0.33 nm and 3.40 nm, respectively. About how many helical turns are there in a fragment 1 mm in length?

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#Question id: 28154

#Unit 1. Molecules and their Interaction Relevant to Biology

Q. Isotope, Natural Abundance, and  spin (I) are given, and some statement are made

a. 12C=98.9%=NMR-active

b. 16O=99.9%=NMR-active

c. 12C=98.9%=NMR-inactive

d. 16O=98.9%=NMR-inactive

Which of the following is true

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#Question id: 5541

#Unit 5. Developmental Biology

What is the valued average rate at which the human brain produces neurons during development?

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#Question id: 24620

#Unit 2. Cellular Organization

Which of the following has higher no the gene family

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#Question id: 19122

#Unit 8. Inheritance Biology

Trisomy 18 is one of the most common trisomies observed in human populations. You prepare DNA samples from two unrelated infants, both with trisomy 18, and from their parents. You then type the infants and their parents for four SSRs distributed along chromosome 18:

     

             

                                         

In which division of meiosis did nondisjunction occur in Family 2?

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#Question id: 10849

#Unit 10. Ecological Principles

Plasmodium is transmitted from human to human by the bite of a mosquito carrier. In this scenario plasmodium is the ________, the mosquito is the ________, and _______ is the role played by the human.