DNA and Protein
none. chicken works
Sexual reproduction is most likely to increase genetic diversity.
Modern Genetic
Both the original and the new genes
The tetranucleotide hypothesis said that DNA wasn't diverse enough to be the hereditary/genetic material. In case anyone gets confused (just indulge me so that I can feel smart), let me explain what the tetranucleotide hypothesis was. It was hypothesized by Phoebus Levene in 1910, a bit after he identified the components of DNA. He proposed that the four nucleotides (adenine, thymine, cytosine, and guanine) occurred in equal quantities - as in A=T=C=G. This idea was extended to the point where it was widely believed that these four nucleotides continued in a repetitive pattern. Because of this, DNA didn't seem like a likely candidate for genetic material. Instead, proteins (the histones in chromosomes) were believed to be the real genetic material. This belief was held steadfastly because Levene was widely respected. Sadly, many scientists second guessed themselves or were not taken seriously because of this hypothesis. Avery&McCarty&MacLeod met such criticism.
small populations
RNA
Does alcohol addiction carry a strong genetic component? * It is possible. Several studies have pointed out that alcoholism is more likely in someone who has family members that are alcoholics.
In general I don't think they did, while proteins were a possibility, they were also investigating an acid (DNA) as the likely substance.
There is a genetic component as family members of affected people are more likely to get it, however, most people with Crohn's Disease do not have affected family members so there are other factors that are probably more important.
RA is caused by antibody's of the immune system getting it wrong. everything that goes wrong and for that mater right is as a result of genetic mutation.There seems to be a genetic component involved in RA if any of your parents brothers or sisters have the disease you are far more likely to fall prey to it.
A ecosystem having significant biodiversity
Yes, it is more likely, because of the lack of sperm quality over 30. The genetic material of sperms may be deteriorated .
His experiment supplied evidence that DNA is not the genetic material by showing that the activity of the material responsible for transformation was not affected by protein-destroying enzymes, but was destroyed when a DNA-destroying enzyme was present. Cristian Mendoza 11/1/12
Sexual reproduction is most likely to increase genetic diversity.
He determined that the DNA is most likely the genetic material and discovered pneumoccal transformation.
a less well-known candidate
Which would most likely decrease the genetic variation in the human population?