Recent content by tica86

1. When crossing over does not occur, how many possible chromosome combination can result from independent assortment of the homologous chromosomes? I believe it is 4, because we have 4 identical chromosomes. Is this correct? 2. How does this change when crossing over occurs? It increases or...

a. CH4(g) + 2O2(g) ----------> CO2(g) + 2H2O(g) I need to determine which is reduced and which is oxidized, I already know that C in methane is Oxidized. O2 is reduced but how can you determine that?? I know it has to do with electron transfer but I just don't see it

Having some trouble understanding if the Kreb cycle is exergonic or endergonic? I know it has to be exergonic because it's releasing ATP?

So I am given 3-methylheptane I know that it looks like this: CH3-CH2-CH-CH2-CH2-CH2-CH3 And the methyl group is attached to CH It is heptane so I have 7 carbons and a total of 15 Hydrogens but I don't understand why it isn't 16 Hydrogens don't I use the formula CnH2n+2=16Hydrogen If...

conversion for volt/ohms to uA is it 10^-6? I just want to make sure, thanks!

intermolecular bonds

Of the following substances which has the highest boiling point? H20, CO2, CH4, Kr, NH3 I already know the answer is H20 but I would've initially chosen NH3 because of the nitrogen bond to hydrogen but that's obviously wrong. Is it H20 because oxygen is more electronegative then nitrogen??

Oh ok, got it. Thank you!

since your just showing what energy to expect if you put an electron through a kV potential?

Oh ok so whatever number given in kV will always be the same for keV?

Oh ok, there was just a problem that my professor did the question was a potential 12.00kV is used to produce x-rays. (A) what is the minimum wavelength possible for the x-rays? ------He started by doing 12.00kV to 12.00keV= 12.00* (1.602175*10^-16J)=1.9222*10^-15 J so that's why I was...

Can anyone tell me the conversion between kV and keV?? Thank you!

I=I0cos^2theta

i1=1/2i0 i2=1/4i0

A beam of unpolarized light, with intensity I0, goes through two polarizers. If the intensity of the light coming out of the second polarizer is 1/4 I0 what is the relative angle between the two polarizers?? ----I know the answer is 45 degrees--- but if anyone could explain how?? Thanks!