Evolution Of Population Flashcards

1
Q

The genetic make up of an individual

A

Genotype

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What an individual does to obtain resources

A

Niche

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A change in aller frequency due to migration of a small group of the population

A

Founder affect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The exchange of DNA sequences between non sister chromatids during meiosis 1

A

Crossing over

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A trait controlled by two or more genes

A

Polygenic trait

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The situation in which allele frequencies do not change

A

Genetic equilibrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Two populations are separated by geographic barriers

A

Geographical isolation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A method of creating different genetic combinations during sexual reproduction

A

Gene shuffling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Individuals at the centre of the curve have highest fitness

A

Stabilizing selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Random separation of homologous pairs of chromosomes during meiosis 1

A

Independent assortment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Individuals at one end of the spectrum have higher fitness than individuals at the middle of the end of the curve

A

Directional selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Random in the relative change of different genotypes in a small population

A

Genetic drift

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When members of two population ma cannot interbreed and produce fertile offspring

A

Reproductive isolation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The formation of a new distinct species in the course of evolution

A

Speciation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The traits that are seen in an organism

A

Phenotype

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Requiring only one allele for a trait to be expressed in a heterozygous individual

17
Q

An Individual having two identical alleles for a given trait

A

Homozygote

18
Q

Requiring two of the same alleles in order for a trait to be expressed in a homozygous individual

19
Q

Different species competing for the same resource

A

Ecological competition

20
Q

The number of times that an allele appears in a gene pool

A

Relative frequency

21
Q

Individuals at the upper and lower ends of the curve have highest fitness

A

Disruptive selection

22
Q

Any change in genetic sequence

23
Q

The theory that states that allele frequencies in a population will remain constant unless factors cause those frequencies to change

A

Hardy Weinberg principle

24
Q

A trait that is controlled by only one gene

A

Single gene trait

25
When two populations are capable of interbreeding but have have different mating strategies or rituals
Behavioural isolation
26
Two or more species reproduce at different times
Temporal isolation
27
An individual having two different alleles for a given trait
Heterozygote
28
All of genes, including all of the different alleles, are present in a population
Gene pool