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PLTL Biol 412 Spring 2023 Flashcards | StudBud
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PLTL Biol 412 Spring 2023
PLTL Biol 412 Spring 2023
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Answers
1
how do we define a species
based soley on how they interact with humans
the species concepts
refer to Websters
Ask google
2
For this tree, which way is time moving?
right to left
left to right
top down
bottom up
3
what type of natural selection is happening in this population?
Disruptive
Directional
Stabilizing
Diversifying
4
genetic variation that exists and is not beneficial nor detrimental to ability of an organism to survive and reproduce
Negative variation
Reverse variation
Positive variation
Neutral variation
5
which of the following is a source of all new genetic variation?
non-random mating
mutation
gene flow
genetic drift
6
what is number 2?
branch point
Node
tip
root
7
Why is biodiversity important?
the lower it is the more stable the ecosystem
the higher it is the more unstable the ecosystem
the higher it is the more stable the ecosystem
8
How many alleles are in this picture?
2
1
4
3
9
what about this one
apethtic speciation
allopatric speciation
sympatric speciation
10
speciation of hybrids can cause intrinsic barriers
True
False
11
which of the following are examples of duplication of a region of DNA that contains a gene
bananas
tetraploid
kiwifruit
octaploid
12
Any measurable aspect of organism that reflects what its doing,and how interacts withother organisms and itsenvironment.
functional trait
analogous train
functional train
species diversity
13
How many genotypes are in this picture?
4
2
1
3
14
which of the following is not a species concept?
biological
ecological
phylogenetic
adaptive
15
A more parsimonous relationship has had more interuptions in its evolution
False
True
16
what should 1 be labeled as?
sister group
node
tip
root
17
reproductive isolation can be both prezygotic and post zygotic
False
True
18
reinforcement selects against hybrids
False
True
19
What things could HWE track in a population?
Allele frequencies
Genotype frequencies
Mating pairs
Phenotype frequencies
20
5 is a sister group
False
True
21
What is this an example of?
sympatric speciation
sympathetic spectiaion
allopatric speciation
22
which factor decreases biodiversity?
Physically diverse habitat
Moderate environmentaldisturbance
Large environmentaldisturbance
Small variations inenvironmental conditions
23
Allele frequencies in a population willremain constant unless one or morefactors cause those frequencies tochange.
True
False
24
What about this one?
left right
bottom up
top down
right left
25
what limitations does the biolopgical species concept have?
does not apply bacteria
does not apply to animals
does not apply to humans
does not apply to fossils
26
What kind of trait is a long tail?
Answer 4 because I cant think of one
magical
Analogous
Homologous
27
Intrasexual selection is:
competition to be chosen by other sex
competition with the other sex for members of other sex
competition to be chosen by same sex
competition with same sex for members of other sex
28
Name the force of evolution
allowance
mutation
genetic drift
gene flow
29
what kind of trait are long legs?
derived
ancestral
analogous
homologous
30
Phylogeny is a theory of a model representing evolutionary relationships
True
False
31
Which of the following is not a mutation affecting only oneor very few nucleotides in a gene sequence?
visitation
substitution
point mutation
deletion
32
Genetic drift is the random change in genotype frequencies in a population
True
False
33
Gene flow is the same as migration
False
True
34
chromosomal rearrangement is atype of chromosome abnormalityinvolving a change in the structure of the native chromosome
False
True
35
Reproductive isolation is a descriptive part of the morphological species concept
True
False
36
4 is the tip?
False
True
37
what is the order that the group are highlighted?
mono, poly, para
poly, mono, para
para, poly, mono
mono, para, poly
38
How do we determine if a population is in occuring evolution?
HWE!! WOOOO!!
Look it up
The Pythagorean Theorm
Ask the species yourself
39
Which of the following are example of genetic drift?
Occurs when a population is suddenly and dramatically increase in size
A new population is founded by a small number of individuals
Occurs when a population is suddenly and dramatically reduced in size
An existing population is founded by a small number of individuals
40
Which number represents the evolutionary lineage, or the branch?
1
2
3
4
41
HWE assumes evolution is occuring in a population.
True
False
42
fusion is an example of secondary contact
False
True
