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WorksheetsHBio Qs
Total questions: 123
Worksheet time: 2hrs 4mins
What would be the complimentary DNA Strand for the following:
C-G-T
C-G-T
G-C-U
G-C-A
C-G-U
The subunits of nucleic acids, such as DNA, are nucleotides. What are the 3 parts of a nucleotide?
Phosphate group
Sugar group
Hydrogen group
Nitrogenous Base
The process of DNA replication is called semi conservative because it results in
none of these
Two DNA molecules. One original molecule and one with two new strands
two exact copies with new strands
two DNA molecules, each with 1 original strand and one new.
WHAT IS #3 (ITS CARRYING AND AMINO ACID)
T RNA
M RNA
R RNA
A sequence of a DNA template strand is shown.
3' TCC AAT GGC TTA TTT 5'
Which of these is the correct amino acid chain produced from the DNA template strand?
Arginine, Leucine, Proline, Asparagine
Tryptophan, Phenylalanine, Leucine
Serince, Leucine, Proline, Asparagine
Tryptophan, Phenylalanine, Leucine, Glycine
What is the purpose of a stop codon?
It tells the ribosome when the gene is done being translated.
It tells DNA when the gene is done.
It tells mRNA when to stop transcribing DNA.
It tells tRNA when to stop bringing in codons.
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
Original DNA segment: CGCAACATA
Mutated DNA segment: CGCAATATA
Which of the following occurred?
Nonsense mutation
Silent mutation
Missense mutation
no mutation
Law which states that different traits are inherited independently of each other
Law of independent assortment
Genetics law
If your genotype is Bb, then you can only pass a B or b to your child but you can't pass both.
Law of Dominance
Law of Segregation
Law of Independent Assortment
The exchange of genetic information that insures that every gamete is unique is referred to as
mitosis
meiosis
reduction division
crossing over
The end result of meiosis is ______________
2 identical diploid cells
2 unique diploid cells
4 identical haploid cells
4 unique haploid cells
True or False. In Meiosis II, there are TWO cells that go through each phase at the same time.
true
false
The physical expression of a genetic trait is called a
mutation
genotype
crossing over
phenotype
In the punnett square below, what belongs in the missing square
In garden pea plant, long stem is dominant over short stem. How many percent will be short stem garden pea plants that may appear in the first filial generation if both parents are heterozygous for the given trait?
25% short stem pea plant
50% short stem pea plant
75% short stem pea plant
100% short stem pea plant
What are the chances that the offspring will have homozygous recessive traits?
1 in 4
3 out of 4
75%
50%
What is the genotypic ratio of a Bb x BB cross
1:2:1
2:2:0
0:2:2
2:2:2
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
9/16
3/16
1/16
16/16
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What is the probability for an offspring to have Round and Yellow seeds? [Answer in fraction]
(a)
Trisomy 21, or having 3 copies of chromosomes 21 is known as which type of mutation?
Point
Trinucleotide Repeat Expansion
Nondisjunction
Gene Translocation
A tall tomato plant is crossed with a short tomato plant, resulting in all medium-sized offspring. Tomato plant size most likely follows which inheritance pattern?
Codominance
Incomplete Dominance
Complete Dominance
What is the blood type of parent 2?
(a)
What are possible blood types of the children?
(a)
Examples include skin color and height (the individual's phenotype exists somewhere along a spectrum)
polygenic inheritance
multiple alleles
linked genes
incomplete dominance
Colorblindness is a recessive X-linked disorder.
Which genotype represents a male with normal vision?
XN YN
Xn Yn
XN Y
Xn Y
Colorblindness is more common in males than in females because......
fathers pass the allele for colorblindness to their sons only
the allele for colorblindness is located on the Y chromosome
the allele for colorblindness is recessive and located on the X chromosome
males who are colorblind have two copies of the allele for colorblindness
whether the father's sperm contains an x or y chromosome
whether the mother's egg contains an x or y chromosome
the age of the parents
whether the mother's egg contains an xx or xy
The woman who is colorblind marries a man with normal vision. What is the probability that their sons will be colorblind?
0%
25%
50%
100%
Suppose a skin cell acquired a mutation from exposure to the sun. Can the mutation get passed on if the person has children?
Yes, but there is a 50/50 chance
Yes, but only if the mutation is dominant
No.
What is the correct genotype for individual I-2?
The laboratory process that makes many copies of DNA
PCR
Electrophoresis
Gene Therapy
This technique used to analyze DNA involves the
synthesis of new DNA strands from subunits
separation of DNA fragments based on size
production of genetically engineered DNA molecules
removal of defective genes from DNA
Natural Selection states that...
Genetic mutation is random
Organisms will change to adapt to their environment
The best adapted organisms will live longer and reproduce more than others
Organisms are naturally selected by God to reproduce
Mutations...
Are always a bad thing
Cannot change a large population
Only occur in microevolution
Increase genetic variation within a population
An inherited trait that allows an organism to better survive in its environment.
variation
adaptation
population
mutation
In a population there are red bugs and green bugs. The birds prefer the taste of the red bugs. The green bugs end up surviving longer and reproducing more. Over time the red bugs go extinct. What adaptation did some bugs have that increased their chances of survival?
They were less visible
They were more visible
They tasted better
They tasted worse
Why does overproduction of offspring increase the chance of survival?
It results in more competition for resources
It allows for better adaptation
It leads to natural selection
It ensures genetic variation
Starting in 1954, commercial fishers in the northwest Pacific were paid by weight, rather than by the individual fish, for pink salmon. The fishers increased the use of a type of net that selectively catches larger fish. Which of the following effects did this change in fishing technique most likely have on the salmon population over the next 20 years?
The average body size of the salmon population decreased significantly.
The average body size of the salmon population increased significantly.
The average body size of the males in the salmon population increased, and the females stayed the same.
None of the above.
The Asian shore crab invaded parts of the eastern coast of the United States about 15 years ago. The Asian shore crab preys on blue mussels. In the time since the Asian shore crab arrived, the average shell thickness of the blue mussel population has increased.
Which of the following is the most likely reason that this increase in shell thickness has occurred?
Blue mussels with thick shells attract more crabs that mussels without thick shells.
Blue mussels with thick shells grow in larger colonies than mussels without thick shells.
Blue mussels with thick shells catch more food per day than mussels without thick shells.
Blue mussels with thick shells survive and reproduce more successfully than mussels without thick shells.
Individuals with intermediate traits are more likely to survive and reproduce
stabilizing selection
directional selection
disruptive selection
the selection pressure favors the extreme phenotypes, dividing the population into 2 distinct groups
directional selection
stabilizing selection
disruptive selection
Due to the differences in the food source of the Galapagos finches, they were able to develop adaptations that will allow them to effectively consume their food. This led to the development of different species of Galapagos finches. Does this show microevolution or macroevolution?
Macroevolution
Microevolution
behavioral isolation
temporal isolation
gametic isolation
geographic isolation
What is the main difference between punctuated equilibrium and gradualism?
Punctuated equilibrium suggests changes are not influenced by environmental pressures, while gradualism does.
Gradualism suggests changes only occur due to environmental pressures, while punctuated equilibrium does not.
Punctuated equilibrium and gradualism both suggest rapid changes over short periods.
Punctuated equilibrium suggests rapid changes occur over short periods, while gradualism suggests slow, incremental changes.
Evolution occurring gradually and slowly over long periods of time
Homeostasis
Stasis
Punctuated Equilibrium
Gradualism
What comparative anatomy structure has similar form/structure but different function?
Analogous Structures
Homologous Structures
Vestigial Structures
What comparative anatomy structure has a different form/structure but the same function?
Analogous Structures
Homologous Structures
Vestigial Structures
What comparative anatomy structure is a result from left over traits that are no longer needed for survival and no longer serve a purpose?
Analogous Structures
Homologous Structures
Vestigial Structures
___________Evolution occurs when similar organisms become more dissimilar in order to adapt to their environments. The organisms' still retain features with similar structure but different function.
Convergent
Parallel
Divergent
Which of the following can be determined by observing the embryos shown in the diagram
What is this an example of?
Homologous structure
Analogous structure
Vestigial organs
Functional adaption
How does Pangaea support the Theory of Evolution? Select all that apply
It provides an explanation for why similar fossils are found on different continents
The movement of continents provides an example of a big change in environment that would cause evolutionary pressures that would drive species to evolve
It explains how the planet became warmer over the years
It provides evidence that continents are growing in size slowly
Which of the following list the following taxon in the correct order from biggest to smallest: (this will be SHORT ANSWER ON YOUR TEST)
Domains
Kingdoms
Phylum
Class
Order
Family
Genus
Species
Species
Genus
Family
Order
Class
Phylum
Kingdoms
Domains
Domains
Genus
Phylum
Order
Class
Family
Kingdoms
Species
Domains
Kingdoms
Family
Order
Class
Phylum
Genus
Species
The first of each kind were created by God during
the crustaceous period
the creation week
all kinds have evolved from an original ancestor
Mesozoic era
Which level of biological classification is the MOST specific?
Phylum
Kingdom
Order
Species
On the cladogram, which organism is the closest relative of the parrot?
Frog
Hare
Caiman
Parrot
All the animals to the right of the salamander would have the common characteristic of...
Fur
Claws or nails
Lungs
Jaws
According to the cladogram, which organism is most distantly related to the human?
crayfish
grasshopper
perch
frog
Who is most closely related to Taxidea taxus?
Lutra lutra
Panthera pardus
Canis latrans
Canis lupus
A nonliving condition or thing, such as climate or habitat, that influences or affects an ecosystem and the organisms in it.
biotic factor
abiotic factor
parasite
organism
A biological community of interacting organisms and their physical environment
ecosystem
community
food chain
biodiversity
An interacting group of various species in a common location
population
species
community
competition
The burning of fossil fuels is known as...
Decomposition
Photosynthesis
Combustion
Respiration
___________ is the process by which dead matter is broken down into simpler substances by detritivores.
Respiration
Decomposition
Combustion
Photosynthesis
In ______________, plants use sunlight and carbon dioxide to make glucose and oxygen
Combustion
Respiration
Decomposition
Photosynthesis
Which of the following will DECREASE the amount of carbon dioxide in the atmosphere?
Combustion of fossil fuels
Respiration
Photosynthesis
Decomposition
Which type of organisms are responsible for turning nitrogen gas into a form useable by other organisms?
Animals
Plantae
Fungi
Bacteria
What is the original cause of eutrophication?
Too many predators
Too many herbivores
Excess fertilizer
Too much oxygen
Which of the following activities could cause the water table of ground water to go down?
Adding more parks and green areas to a city.
Conserving the amount of water used in big cities.
Concrete covering the soil blocking infiltration from taking place.
More precipitation due to more evaporation in an area.
Which of the following would happen if decomposers disappeared?
consumers would have more food
nutrients would never recycle
biomass would decay faster
producers would have more sunlight
In mutualism, both organisms (a)
In commensalism, one organism benefits while the other one is (a)
Select the best symbiotic relationship that these two organisms would express
mutualism
commensalism
parasitism
Select the best symbiotic relationship that these two organisms would express
mutualism
commensalism
parasitism
According to the graph, what is causing the deer population to decrease
They got sick
The wolf population is decreasing
The wolf population increased
They ran out of food
Which of these is NOT an example of interspecific competition?
Oysters and barnacles competing for settling space on the rocky shore
Goats and sheep in the same paddock competing for grass
Ferns and kawakawa competing for shaded locations in a forest
Stags competing for mates
What does the small intestine do?
reabsorbs the water after the process of the system.
Absorbs most of the end of the nutrients and minerals from where the food takes place.
keeps the stomach in balance for when the system starts.
Absorbs most of the food that's left from the process.
What is muscular tube that moves food from the pharynx to the stomach?
Uvula
Esophagus
Palate
Salivary glands
What is the last section of the digestive system, where water is absorbed from food and the remaining material is eliminated from the body?
Large Intestine
Small Intestine
Appendix
Pharynx
In diagram A, the diaphragm is contracted. The volume of the rib cage will ___ & the pressure will ___causing you to ___ .
increase, decrease, inhale
decrease, increase, inahle
increase, decrease, exhale
decrease, increase, exhale
Oxygen is in ___ concentration in the alveoli & ___ concentration in the blood capillary. This causes oxygen to move by ___.
low, high, active transport
high, low, osmosis
high, low, diffusion
Arteries carry oxygen rich blood away from the heart.
True
False
This chamber of the heart pumps the blood from the heart to the lungs through the pulmonary artery
Right Atrium
Left Atrium
Right Ventricle
Left Ventricle
What are the main functions of the excretory system?
deliver oxygen to the body
deliver nutrients to the body
remove water and waste from the body
remove disease from the body
Which organ filters blood?
Kidneys
Large Intestine
Lungs
Bladder
