FOr given question is more correct answer is Backbone of DNA helix is formed by sugar and phosphate groups. The bases are attached to the backbones. The two vertical poles are held together by hydrogen bonds between the two nitrogen bases.

Question

asked 2021-01-23

Give a correct answer for given question

(A) Argue why \({ (1,0,3), (2,3,1), (0,0,1) }\) is a coordinate system ( bases ) for \(R^3\) ?

(B) Find the coordinates of \((7, 6, 16)\) relative to the set in part (A)

asked 2021-02-25

Give a full answer for the given question: The covalent backbone of DNA and RNA consists of: ?

asked 2021-09-15

This question has to do with binary star systems, where 'i' is the angle of inclination of the system.

Calculate the mean expectation value of the factor \(\displaystyle{{\sin}^{{{3}}}}\) i, i.e., the mean value it would have among an ensemble of binaries with random inclinations. Find the masses of the two stars, if \(\displaystyle{{\sin}^{{{3}}}}\) i has its mean value.

Hint: In spherical coordinates, \(\displaystyle{\left(\theta,\phi\right)}\), integrate over the solid angle of a sphere where the observer is in the direction of the z-axis, with each solid angle element weighted by \(\displaystyle{\sin{{\left\lbrace{3}\right\rbrace}}}{\left(\theta\right)}\).

\(\displaystyle{v}_{{{1}}}={100}{k}\frac{{m}}{{s}}\)

\(\displaystyle{v}_{{{2}}}={200}{k}\frac{{m}}{{s}}\)

Orbital period \(\displaystyle={2}\) days

\(\displaystyle{M}_{{{1}}}={5.74}{e}{33}{g}\)

\(\displaystyle{M}_{{{2}}}={2.87}{e}{33}{g}\)

Calculate the mean expectation value of the factor \(\displaystyle{{\sin}^{{{3}}}}\) i, i.e., the mean value it would have among an ensemble of binaries with random inclinations. Find the masses of the two stars, if \(\displaystyle{{\sin}^{{{3}}}}\) i has its mean value.

Hint: In spherical coordinates, \(\displaystyle{\left(\theta,\phi\right)}\), integrate over the solid angle of a sphere where the observer is in the direction of the z-axis, with each solid angle element weighted by \(\displaystyle{\sin{{\left\lbrace{3}\right\rbrace}}}{\left(\theta\right)}\).

\(\displaystyle{v}_{{{1}}}={100}{k}\frac{{m}}{{s}}\)

\(\displaystyle{v}_{{{2}}}={200}{k}\frac{{m}}{{s}}\)

Orbital period \(\displaystyle={2}\) days

\(\displaystyle{M}_{{{1}}}={5.74}{e}{33}{g}\)

\(\displaystyle{M}_{{{2}}}={2.87}{e}{33}{g}\)

asked 2021-05-21

A population like that of the United States with an age structure of roughly equal numbers in each of the age groups can be predicted to A) grow rapidly over a 30-year-period and then stabilize B) grow little for a generation and then grow rapidly C) fall slowly and steadily over many decades D) show slow and steady growth for some time into the future