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visits member for 1 year, 11 months
seen Dec 24 at 13:29

I am currently working towards a PhD in microbial genetics. Before that I spent a bit over a decade working as a programmer, with most of that time spent writing computer games. I have degrees in Mathematics (MMath), Life Sciences (BSc) and Molecular Genetics (MSc).


May
23
answered What is the evolutionary reason behind human preference for salty foods?
May
20
revised How best to count bees entering and leaving a hive to measure hive activity?
edited title
May
20
comment Evolutionarily speaking, why do humans have 46 chromosomes
It seems to me this answers the 'how' question but not the 'why' question. I would guess the answer to 'why' is random chance but there could be a selective advantage? Is there any evidence either way?
May
10
revised Why are there exactly four nucleobases in DNA?
Added addendum about synthetic six base system
May
3
awarded  Nice Answer
May
1
awarded  Nice Answer
Apr
1
answered Was the mitochondrion or chloroplast first?
Mar
31
comment Effect on fitness of mutations
@fileunderwater: If it's left skewed and has a central spike at an exact value it therefore will be poorly approximated by any take on the normal distribution.
Mar
31
answered Effect on fitness of mutations
Mar
31
answered Dominance/recessivity of new mutations
Mar
28
comment How does the creative process of Biological Evolution work?
@LotusBiology: When you rock up repeating a bunch of creationist misinformation using creationist language I'm going to assume you're a creationist. Trotting out "religion of evolution" in your response doesn't make me think this is any less likely.
Mar
27
comment How does the creative process of Biological Evolution work?
Creationism is off-topic on Biology SE.
Mar
26
awarded  Nice Answer
Mar
25
answered Do any organisms recycle their own waste internally?
Mar
15
answered If DNA has a half life of about 500 years, how can old seeds be planted?
Feb
5
comment Can you answer Ray Comfort's question on Biological Evolution?
This question appears to be off-topic because it is about Creationism.
Jan
16
awarded  Yearling
Jan
14
awarded  Nice Answer
Jan
13
comment Do humans have enough biological differences to be grouped into races or subspecies?
@Herman: No, although that can also be a factor. Have a look at this image - bit.ly/1iHOMss - and note how there is no clade that includes both Africans but not the Europeans. This is because the European population is a subpopulation of the African population. The two African populations shown are as different from each other as the European population can be from the first African population. In reality, there are many more distinct African populations than shown here.
Jan
13
comment Do humans have enough biological differences to be grouped into races or subspecies?
@Herman: Evolution follows a branching, hierarchical structure (broadly, it's more complicated than that) and Europeans group within the various African populations, i.e., they're essentially a subpopulation of a particular African population.