stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Keystone Module 2 Review Flashcards | StudBud
Explore
/
Keystone Module 2 Review
Keystone Module 2 Review
50 terms
·
StudBud Administration
·
668 plays
Module 2 Review
Flashcards
50 cards
F
Practice quiz
P
Host live
L
Questions
50
Answers
1
During what stage of mitosis do spindle fibers form?
Metaphase
Telophase
Anaphase
Prophase
2
Which outcome is most likely a result of selective breeding?
an increase in natural selection
development of new ecosystems
an increase in number of favored genotypes
the formation of new genes
3
Which mutation is the most likely to result in no effect to the phenotype of a cell?
Silent
Missense
Frame-Shift
Nonsense
4
Someone with Trisomy 15 would have ____ chromosomes and would be represented by the notation _____
46......2n+1
47.....2n-1
47.....2n+1
46.......2n-1
5
Which of the following is the original source of energy in any ecosystem?
sugar
soil
sunlight
plants
6
What happens to the unused organic matter at each trophic level within an energy pyramid?
It is absorbed by consumers
It is used by consumers to make more food
It is recycled by decomposers
It is lost as ATP to the environment
7
The amount of rainfall, intensity of UV radiation, and local climate are all examples of
Abiotic factors
Vertebrates
Biotic factors
Microbes
8
Which description is the best example of a population?
all of the red foxes in every forest
all of the red foxes in a forest
all of the organisms in every forest
all of the organisms in a forest
9
A cell goes through Meiosis. How are the daughter cells different than the parent cell?
daughter cells are diploid
the daughter cells contain half the amount of DNA
the daughter cells are larger
the daughter cells grow twice as fast
10
The decomposition performed by soil bacteria and fungi are a critical part to the ___ cycle.
Carbon
Phosphorus
Water
Nitrogen
11
If the codon "ACC" is mutated to "ACA" but still results in the same amino acid, what two words describe this mutation?
point and missense
point and non-sense
point and silent
point and deletion
12
Which of the following is an example of an observation?
A fly is caught in a spider web
Why does a spider spin a web?
What time of day is best for finding a spider web?
A spider spins a web to catch its food.
13
A species of flower has 5 petals. One individual has 3 petals. What event most likely caused it
mutationin the gene code for petal number in the parents DNA
DNAis inherited from two different parent plants
lowwater levels in the soil surrounding the parent plants
hightemperatures during the flower production season
14
A human is composed of trillions of cells. Which process directly causes this large number?
respiration
cell mutation
circulation
cell division
15
Translation occurs in the ____ while transcription occurs in the _____
nucleus.....cytoplasm
cytoplasm.....nucleus
16
Which scenario would lead to the most rapid evolution of a new species of beetle?
a nonnative predator of the beetle being introduced
small group of beetles finding an area with new food sources
a random mutation in one of the beetles
A geographic barrier separating two populations of beetle
17
Which energy transfer most likely occurs between organisms in the food web?
from mouse to grasshopper
from rabbit to fox
from owl to fox
from sparrow to grass
18
One species of flower releases pollen in the Spring while another releases pollen in the Fall. These two plants are:
behaviorally isolated
able to breed with each other
temporally isolated
geographically isolated
19
What is the advantage of using transgenic bacteria to make human proteins (like insulin)?
proteins made by bacteria will be a different shape than the human protein
the bacteria can produce the human proteins in large quantities
proteins made by the bacteria will work better than the ones made by humans
proteins made by the bacteria will last longer than the ones made by humans
20
Which of the following best describes an acquired trait of a cat?
eye color because itis passed on from the prior generation
chipped tooth because it develops during the organism's life
long tail because it was born with it
fur length because itis passed on from the prior generation
21
Non-disjunction is a result of which function?
spindle fibers not forming
all of the following can result in non-disjunction
spindle fibers not recoiling back into the centriole
spindle fibers not attaching to sister chromatids
22
The founder effect and the bottleneck effect are 2 examples of ___ and will cause a __allele frequency in the population
genetic mutations....stabilizing
genetic drift....changing
genetic drift.....stabilizing
genetic mutations...changing
23
Very few plants grow at the bottom of oceans. Which scenario best explains this observation?
decreased oxygen
increased competition
increased predation
decreased sunlight
24
Which trait is an acquired trait?
bruise
dimples
brown eyes
red hair
25
Which relationship best describes the interaction between ticks and a deer?
Competition
Parasitism
Commensalism
Mutualism
26
Similar anatomical features that serve different functions are __ structures
Vagus
Vestigial
Homologous
Analogous
27
Which of the following statements is FALSE?
both mitosis and meiosis involve tetrads
both mitosis and meiosis involve sister chromatids
both mitosis and meiosis start with a diploid cell
both mitosis and meiosis both involve DNA replication
28
Ecological succession that occurs after a volcanic eruption is___ while succession that happens aftr a forest fire is __
secondary succession.....primary succession
primary succession.....secondary succession
29
Various bacteria, fungi, protists, vertebrates, and invertebrates all live in one common area.
ecosystem
biome
community
population
30
Which effect is most likely caused by nondisjunction during meiosis?
only two types of nitrogenous bases
an increase in nuclei
an extra chromosome
increased survival benefits from traits
31
Fertilization of an egg leads to a diploid cell. Which is true of a diploid cell?
There are two genes per allele
There are two genes per chromosome
There are two chromosomes per allele
There are 2 alleles per gene
32
The DNA of two brown eyed and blue eyed people is analyzed. What would they have in common?
the location of the gene
the allele
the DNA sequence
the amount of pigment
33
A DNA segment of what size would move the greatest distance in an electrophoresis gel?
5,000 base pairs
1,000 base pairs
100,000 base pairs
100 base pairs
34
Which location would most likely have an aye-aye population with the greatest genetic variation
location 3
location 1
location 2
location 4
35
Squirrels, separated by the Colorado River, became unique species.Which mechanism caused this?
.geographic isolation
increased gene flow
behavioral isolation
habitat preference
36
Two species of frog live in the same area. Which is the best evidence for a common ancestor?
the species' physical characteristics
the species' similar diets
the species' similar habitats
the species' mating behaviors
37
An DNA sequence is mutated by 1 nucleotide. This results in 1 wrong amino acid in the protein. This is known as a(n):
frameshift and missense
point and non-sense
point and missense
frameshift and nonsense
38
A primary consumer is also referred to as?
an omnivore
a carnivore
an herbivore
a detritivore
39
The graph represents changes to a trait. What most likely occurred at time 1?
A mutation produced a new allele for the gene
There was an increase in the population of mice
An invasive species with a new allele entered the population
Natural selection caused a new trait to be beneficial
40
Which term best describes the basic unit of inheritance passed from a parent to offspring?
genes
traits
phenotypes
genotypes
41
A study looked at the effect of fertilizer on plant growth. Plant growth is the __ and would be placed on the __ axis
dependent variable .......y-axis
dependent variable....x-axis
independent variable....y-axis
independent variable....x-axis
42
Which list of events occurs during the telophase of the cell cycle?
the cytoplasm divides, creating two daughter cells
a new membrane begins to form around the chromatids
DNA replicates and proteins are produced
separation of sister chromatids
43
Changing a single base causes an error that affects the next 500 amino acids in a protein.
nonsense mutation
silent mutation
frame-shift mutation
substitution
44
What type of evidence does the presence of homologous structures in plants provide?
Only some plants are capable of photosynthesis
Insects and plants evolved around the same time
Some animals are more closely related to plants
plants have evolved from a common ancestor
45
Leopards live and hunt alone. What is most likely the primary value of living alone?
greater genetic variability within the species
decreased space needs for the species
reduced competition for natural resources
increased survival rates with habitat loss
46
At the end of Prophase 1, how many tetrads have formed in a human cell performing meiosis?
46
92
69
23
47
Nitrogen is an essential element in order to make ____ while phosphorus is needed to make ____
proteins....glucose
proteins.....carbohydrates
carbohydrates.....proteins
proteins......nucleic acids
48
Meiosis starts with a ___ cell and ends with ____ _____ cells which are all genetically _____
diploid.....4....haploid....unique
diploid....2.....haploid....identical
diploid.....2....diploid.....identical
diploid.....4.....diploid.....unique
49
Genetic engineers designed corn with anti-fungal properties. How does this benefit farmers?
It lowers the cost of each acre of plants cultivated.
It eliminates the processing needed to harvest corn
It makes each plant more resistant to disease.
It increases the value of each acre of land cultivated.
50
Which statement best describes how invasive plants can negatively affect native herbivores?
can attract other nonnative plants to the forest ecosystem.
can stop the life cycles of native herbivores.
can reduce the size of the native plant populations.
can increase the flow of energy through the ecosystem.
