In nature, populations are usually evolving. The grass in an open meadow, the wolves in a forest, and even the bacteria in a person’s body are all natural populations. And all of these populations are likely to be evolving for at least some of their genes. Evolution is happening right here, right now!
To be clear, that doesn’t mean these populations are marching towards some final state of perfection. All evolution means is that a population is changing in its genetic makeup over generations. And the changes may be subtle—for instance, in a wolf population, there might be a shift in the frequency of a gene variant for black rather than gray fur. Sometimes, this type of change is due to natural selection. Other times, it comes from migration of new organisms into the population, or from random events—the evolutionary “luck of the draw.“
In this article, we’ll examine what it means for a population evolve, see the (rarely met) set of conditions required for a population not to evolve, and explore how failure to meet these conditions does in fact lead to evolution.
Problems:
Genetic variation _____.
A) must be present in a population before natural selection can act upon the population
B) is created by the direct action of natural selection
C) tends to be reduced by when diploid organisms produce gametes D) arises in response to changes in the environment
Whenever diploid populations are in Hardy-Weinberg equilibrium at a particular locus, _____.
A) two alleles are present in equal proportions
B) individuals within the population are evolving
C) the allele’s frequency should not change from one generation to the next
D) natural selection, gene flow, and genetic drift are acting equally to change an allele’s frequency
#HardyWeinbergLaw #population #alleleFrequencies #Mutation #genotypes #HardyWeinbergEquilibrium #populationGenetics
1 view
16
8
2 months ago 00:04:03 1
Skrimor - The Rave Feeling (Premiere) | Drum and Bass
2 months ago 00:32:21 1
Alastair Crooke: Will Zionism Self-Destruct?
2 months ago 00:00:06 1
They knew what they were doing💀
2 months ago 00:20:35 56
My biggest hobby REGRET...
2 months ago 00:24:01 1
This is the World’s Best Pizzeria in 2023! Rated #1 in the 50 Top Pizza ranking!
2 months ago 00:18:52 1
The Spark Plug Story
2 months ago 00:03:58 1
Sovereign - Vanguard | Metal Song | Mass Effect | Community Request
2 months ago 00:01:01 1
Ryan Gosling Evolution
2 months ago 00:00:49 2
From Guido to Visual Digital Graphics: The Evolution of Conveying Duration as a Process. #shorts
2 months ago 00:02:29 1
Transitional Fossils - Java Man
2 months ago 00:27:19 1
What Game Theory Reveals About Life, The Universe, and Everything
2 months ago 00:30:00 1
The Evolution of Fatalis in Monster Hunter - Heavy Wings
2 months ago 00:53:53 1
An Offering From Drumeo | Sleep Token II
2 months ago 00:48:15 1
10 Шокирующих ИИ Технологий в 2024
2 months ago 00:12:11 1
How Technology Has Transformed the Evolution of Cinema?!
2 months ago 00:01:00 1
Animals teach us love ❤️
2 months ago 00:00:50 1
JOURNEY TOWARDS A FIFTH DIMENSIONAL REALITY
2 months ago 00:01:35 1
The Škoda Epiq: The next step in our electric evolution
2 months ago 02:21:25 1
The Spiritual Battle For Our Humanity: Transhumanism, DNA, AI & Our Forgotten Past | Gregg Braden