Natural selection
What are the types of natural selection?
Directional, Stabilizing, and disruptive selection
What is Gene flow?
Gene flow is the transportation of genetic material from one population to another.
What is genetic drift?
the random change in the frequency of gene variants (alleles)
What is allele?
a version of a gene that exists at a specific location on a chromosome.
What is evolution?
the process of change in living organisms over generations
What is Natural Selection?
Its when animals (or plants) have good trait that could help with surviving, so they reproduce to pass on those traits to their offsprings.
Is Gene flow beneficial?
Yes, it can allow for beneficial type of mutations, traits, characteristics spread out more.
Is genetic drift benefical?
No, it is not inherently beneficial
How are alleles inherited from parents?
When each parent contributes one of two alleles for each gene to their offspring during fertilization
Are all species related?
Yes, all known species are related through a concept called universal common descent
Is Natural Selection beneficial?
Yes, it increases animals with good traits who know how to adapt.
What are some examples of Gene flow?
Pollen dispersal, seed dispersal, intentional hybridization
Can genetic drift cause a population to adapt to its environment?
No, genetic drift does not directly cause adaptation to the environment
What is the difference between genotype and phenotype?
Genotype is an organism's genetic makeup (e.g., the specific alleles it has), while phenotype is the set of observable characteristics resulting from the interaction between its genotype and the environment
Does evolution happen quickly or slowly?
very slow to very fast .
Is Natural Selection a random process?
No, it is not a random process
How does Gene flow increase genetic diversity?
By introducing new Alleles.
Can genetic drift create new traits or alleles?
No, genetic drift cannot create new traits or alleles
What does it mean to be homozygous versus heterozygous?
Being homozygous means you have two identical alleles for a specific gene, while being heterozygous means you have two different alleles for that gene.
Is evolution a random process?
No, it is not a random process.
Define all the types of Natural selection
Directional - "Favors individuals with a trait at one extreme of the range."
Stabilizing - "Favors individuals with the average, or intermediate, form of a trait."
Disruptive - "Favors individuals with extreme variations of a trait over those with the average trait. "
How does Gene flow interact with Natural selection?
gene flow acts as a homogenizing force that introduces new alleles and reduces genetic differences.
How does genetic drift work differently from natural selection?
Genetic drift is a random process, while natural selection is a non-random one driven by an allele's effect on survival and reproduction.
What is allele frequency?
the proportion of a specific allele for a gene within a population.
Is evolution still happening today?
Yes, it is still happening today