Mel122

Degeneracy is the phenomena of having more than 1 codon coding for 1 amino acid. So non-degenaracy is when 1 codon codes for 1 amino acid. Unambiguity is also defined similarly; 1 codon can code for only 1 amino acid. Are there any differences between the two terms?

If I'm asked to calculate the number of nucleosomes for an organism with a certain number of base pairs, I can easily calculate by dividing this value with the DNA base pairs per nucleosome. However, do I need to consider the linker DNA too? If I take the base pairs in just the nucleosome, I'd have 146 bp. But if I consider the linker DNA as well, I'll have a little over 200. My textbook says to consider 200 instead of 146. Can someone explain why that is so?

Thanks for the example, I get it now.

I am a high school student currently studying Mendelian genetics. I stumbled upon a question that said two plants with the genotypes PpQq each are selfed, resulting in the formation of 1000 seeds. The question then asks to find the frequencies of the following genotypes: Ppqq, PpQq, ppQq and PpQQ To solve this, I found the ratio (2:4:2:2), divided each by 16 and multiplied by 1000 to find the exact number of each progeny. This is probably a very basic and silly doubt, but I'm confused. I get that the probability of, say, 'Ppqq' is 2/16, but why do we have to multiply that by 1000? Can someone explain the right way to do this problem? Thanks.