All Questions
Tagged with adaptation genetics
7 questions
0
votes
1
answer
53
views
Evolution of the human Y chromosome
This recent news article suggests the number of genes in human male Y chromosome has steadily been reducing in the Y chromosome for a long time and is in danger of dying out all together.
What I want ...
- 124
0
votes
2
answers
108
views
Can the apparent drop in insect population be explained by local insects evolving to avoid traps?
In this widely reported Plos One article, it is stated that, after roughly 3 decades of placing Malaise traps in a set of predetermined locations (counting and replacing them regularly), a sharp ...
- 111
0
votes
2
answers
422
views
What's the difference between reaction norms and phenotypic plasticity?
I'm trying to understand better these two concepts, but I cannot see a clear difference yet.
Reaction norm: "set of phenotypes that can be produced by an individual genotype when exposed to different ...
- 103
-1
votes
1
answer
142
views
Is evolution theory falsifiable by whether mutations result in a loss or gain of genetic information? [closed]
If I understand the theory correctly, evolution revolves around the process of adaptation of a being to its environment which results in the increment of survival and reproduction chances for that ...
- 109
1
vote
1
answer
76
views
Do similar adaptations result in similiar genetic code?
Sometimes organisms within the same species evolve similar adaptations to similar living conditions without interbreeding.
Let's say we have two human populations which need to adapt to a colder ...
- 123
3
votes
2
answers
456
views
Definitions of robustness and canalization
The concepts of robustness and canalization are fashionable today in the biology literature. However, I am not sure of their definitions and I am not sure either that all authors actually use the same ...
- 68.3k
7
votes
1
answer
11k
views
What is the standing genetic variation?
I am reading this review. In the first part, the author introduces Standing Genetic Variation, described as:
STANDING GENETIC VARIATION Allelic variation that is currently
segregating within a ...
- 820