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Molecular Biology 5th Edition by Robert Weaver
النسخة 5الرقم المعياري الدولي: 978-0073525327Molecular Biology 5th Edition by Robert Weaver
النسخة 5الرقم المعياري الدولي: 978-0073525327 تمرين 1
The double-stranded DNA genome of human herpes simplex virus 1 has a molecular mass of about 1.0 × 10 5 kD. (a) How many base pairs does this virus contain (b) How many full double-helical turns does this DNA contain (c) How long is this DNA in microns
التوضيح
موثّق
موثّق
a.The average molecular weight of a nucleotide base pair is 660 Daltons/0.660 kD. The virus DNA (Deoxyribonucleic acid) has a molecular mass of 1.0 ×10 5 kD. The total number of base pairs in the virus genome is calculated as follows: 
b.Each helical turn in a DNA molecule contain 10.5 bp. The number of helical turns in a DNA molecule is 
c.The space between the base pairs in a DNA molecule is 3.4 A o 
. The length of the DNA molecule is the number of base pairs multiplied by the space between them, calculated as given below: 
Therefore, the length of the given virus genome molecule is 51 µm.
b.Each helical turn in a DNA molecule contain 10.5 bp. The number of helical turns in a DNA molecule is c.The space between the base pairs in a DNA molecule is 3.4 A o . The length of the DNA molecule is the number of base pairs multiplied by the space between them, calculated as given below: Therefore, the length of the given virus genome molecule is 51 µm.
Molecular Biology 5th Edition by Robert Weaver
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