Mutations can be categorized based on the kind of effect they have on an organism. Blue eyes in humans are a result of a mutation in the OCA2 gene, which controls the production of pigment melanin in the iris.
This mutation is an example of a
mutation. Such mutations have
effect on an organism’s survival.
Answers
The mutation in the \(OCA_2\)gene that causes blue eyes in humans is an example of a non-lethal mutation. Such mutations have a neutral or insignificant effect on an organism's survival and do not significantly impact its ability to reproduce and pass on the mutation to future generations.
The mutation in the \(OCA_2\) gene that leads to blue eyes in humans is an example of a non-lethal mutation. This specific mutation affects the production of melanin, the pigment responsible for the coloration of the iris. Individuals with this mutation have reduced melanin production, resulting in lighter eye color.
Mutations can be categorized based on their effects on an organism. Lethal mutations cause severe impairments that prevent the organism from surviving. These mutations are typically incompatible with life and often result in spontaneous abortion, stillbirth, or early death after birth. Examples of lethal mutations include those affecting vital organs or crucial developmental processes.
In contrast, non-lethal mutations have a neutral or insignificant effect on an organism's survival. These mutations may result in variations in physical traits, such as eye color, hair color, or height, but do not significantly impact the organism's ability to survive and reproduce. Non-lethal mutations often do not confer a selective advantage or disadvantage, and their occurrence is driven by genetic variation and chance.
The mutation in the \(OCA_2\) gene that causes blue eyes is considered a non-lethal mutation because it does not adversely affect an individual's ability to survive and reproduce. While eye color may vary, it does not impact overall fitness or reproductive success. Therefore, individuals with blue eyes can thrive and pass on the mutation to future generations without any significant hindrance.
It is important to note that the categorization of mutations as lethal or non-lethal can vary depending on the specific context and species. Mutations that are non-lethal in one species may have different effects in another. Additionally, the impact of a mutation on an organism's survival and reproductive success can be influenced by environmental factors and genetic interactions.
In summary, the mutation in the \(OCA_2\) gene that leads to blue eyes in humans is an example of a non-lethal mutation. Such mutations have a neutral or insignificant effect on an organism's survival and do not significantly impact its ability to reproduce and pass on the mutation to future generations.
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Related Questions
How does geography influence genetics
Answers
Answer:
Environmental variables can influence the movement of gametes, individuals and groups of individuals among natural populations to affect gene flow patterns1, which may have a profound influence on the spatial and temporal distribution of genetic variation and further, evolutionary progress of natural populations2,3
Explanation:
which of the following is the strongest piece of evidence for why some scientists believe that we are at the start of a sixth mass extinction?
Answers
A decline in biodiversity is the most compelling indication, according to some experts, that the sixth mass extinction is beginning.
The sixth mass extinction, which is believed to be caused by humans and accelerating, has resulted in the loss of thousands of populations of highly endangered vertebrate animal species in the past century. Due to the still rapid population and demand growth, the extinction catastrophe will undoubtedly worsen.
Earth has previously seen five catastrophic extinctions of biodiversity. As a result of human activity, climate change, and endangered species, scientists increasingly believe that a sixth mass extinction may be taking place right now.
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The relationship between predator and prey species is modeled here with the owls and rodents. Which statement(s) correctly evaluate
the relationship between these species with regards to evolution? Select ALL that apply.
es )
A)
The presence of the owls is a selective pressure for the rodents.
B)
Fewer rodents result in an overpopulation of owls, leading to their
evolution
o
Coevolution is occurring as each population is evolving in response to the
other.
D)
Owls that see camouflaged rodents are more likely to evolve to have
increased variation
E)
Coloration results in poorly or well-adapted rodents while eyesight level
can lead to poor or well-adapted owls.
Answers
Answer:A, C, E .
Explanation:
I just did it on USA testprep
A) The presence of the owls is a selective pressure for the rodents.
C) Coevolution is occurring as each population is evolving in response to the other.
What is predator?A predator is an organism that hunts, kills, and feeds on another organism known as the prey. Predation is a biological interaction between two species, where one species benefits by consuming the other species, and the other species is harmed or killed.
These two statements correctly evaluate the relationship between the predator and prey species in terms of evolution. The presence of owls as predators creates a selective pressure for rodents, where those with traits that allow them to escape predation are more likely to survive and pass on their genes.
This leads to the evolution of better-adapted traits in the rodent population over time. The interaction between owls and rodents can also be considered an example of coevolution, as changes in one population can drive changes in the other population, leading to a reciprocal evolutionary response.
Overall, the relationship between predator and prey species is complex and constantly evolving, with each population influencing the other's evolution over time.
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distribution of chlorophyll, stomata, mesophyll cells and vascular bundles support photosynthesis
Answers
Yes, the distribution of chlorophyll, stomata, mesophyll cells, and vascular bundles supports photosynthesis.
Let us discuss each separately.
Chlorophyll: It absorbs light energy from the sun, which is essential for photosynthesis. The distribution of chlorophyll within the mesophyll cells ensures that it is positioned optimally to capture sunlight.Mesophyll cells: Mesophyll cells are the main site of photosynthesis in plant leaves. It contains chloroplasts and provides a spongy texture to the leafy surface.Stomata: Stomata are small openings on the surface of leaves that regulate gas exchange, including the uptake of carbon dioxide (CO2) required for photosynthesis and the release of oxygen (O2) produced during photosynthesis. Vascular bundles: Specialized tissues composed of xylem and phloem, responsible for transporting water, minerals, sugars, and other substrates throughout the plant body.To know more, refer to;
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THINK IT THROUGH You may recall that soil is classified by several properties such as color, texture, structure, and pH. Many of the processes that produce soil are related to the activities of living things. Do you think that the types of rocks and minerals found in a particular area could also influence the characteristics of the soil? Explain.
Answers
Answer:
Yes, the types of rocks and minerals found in a particular area can influence the characteristics of the soil. This is because soil formation is a complex process that involves the weathering and breakdown of rocks and minerals over time.
For example, if an area has a high concentration of granite rocks, which are composed of minerals such as quartz, feldspar, and mica, the resulting soil may be sandy or gritty in texture and have a higher pH due to the presence of minerals that do not easily break down. On the other hand, if an area has a high concentration of limestone rocks, which are composed of calcium carbonate, the resulting soil may be alkaline and have a higher fertility due to the presence of easily broken down minerals.
In addition, the type of rocks and minerals in an area can also influence the structure of the soil. For instance, if an area has a high concentration of clay minerals, which are formed from the weathering of silicate rocks such as feldspar and mica, the resulting soil may have a higher water-holding capacity and be more susceptible to compaction.
Therefore, the type of rocks and minerals in an area can have a significant impact on the characteristics of the soil, including its texture, structure, and pH, as well as its fertility and water-holding capacity.
Explanation:
Most articles pass right through the atom, this means that most of the atom is
Answers
Most articles pass right through the atom, this means that most of the atom is an empty space.
What is an atom?An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.
As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.
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In a process called
foreign material.
Odendrocytosis
O neutrocytosis
O killocytosus
O phagocytosis
O erythrocytosis
macrophages and dendritic cells engulf and degrade cellular debris and foreign material
Answers
Dendritic cells and macrophages ingest and break down foreign substances and cellular waste in a process known as phagocytosis. An essential function of the immune system is phagocytosis, in which specialised cells called phagocytes identify and take in foreign substances like pathogens or cellular waste in order to remove them from the body.
The capacity to grow pseudopodia around the target material by macrophages and dendritic cells creates a phagosome, which is then internalised by the cell.
The phagosome joins with lysosomes to create a phagolysosome, where the substance it has absorbed is digested and destroyed by enzymatic processes.
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Guys please I need the answer:
What part of a flower has the stone developed from?
0 stigma
0 ovary
0 ovule
Which one???
Please helppppp❤️
Answers
Answer: Ovary
Explanation:
What is the name of the hormone that: increases blood glucose levels? decreases blood glucose levels? a) b)
Answers
Answer:
Explanation:
Glucagon
is produced to maintain glucose levels in the bloodstream when fasting and to raise very low glucose levels.
insulin's
job is to lower blood sugar. If blood sugar gets too low, the pancreas releases another hormone, glucagon, which works to raise glucose levels.
Whats the correct answer answer asap for brainly i need help
Answers
Answer:
A:an insufficient amount of lactase enzymes
How are hydrogen bonds related to polarity?
Answers
The two hydrogen atoms and one oxygen atom within water molecules (H2O) form polar covalent bonds. ... As a result of water's polarity, each water molecule attracts other water molecules because of the opposite charges between them, forming hydrogen bonds.
Why does natural selection occur more when there is competition for resources?
Answers
Natural selection occurs more prominently when there is competition for resources because competition creates selective pressures that drive adaptations and favor certain traits over others.
In any given environment, resources necessary for survival and reproduction, such as food, water, and shelter, are limited. As a result, individuals within a population must compete with one another to obtain these resources.
Competition leads to differential survival and reproductive success among individuals.
Those individuals with advantageous traits or variations that enable them to more effectively acquire and utilize resources have a higher likelihood of survival and producing offspring.
These advantageous traits can be physical characteristics, physiological adaptations, or behavioral strategies that provide a competitive edge.
Through natural selection, individuals possessing beneficial traits are more likely to pass on their genes to the next generation, while individuals with less favorable traits are at a disadvantage.
Over time, this process results in the accumulation of beneficial traits within the population, enhancing their overall fitness and adaptation to the specific environment.
Therefore, competition for resources acts as a driving force for natural selection by selecting for traits that enhance an individual's ability to secure limited resources, survive, and reproduce successfully.
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What caused the
evolution of
peppered moths?
A. their food source died off
B. a forest fire destroyed their habitat
C. their number of predators increased
D. the change in the color of their environment
Answers
Your answer would be D.
Explanation:
The change in the colour of their environment makes them blend in with surrounding area, therefore, making it harder for prey to find them. You're welcome, Mate!
the movement of rock by wind is known as _____
can someone help me with this?
Answers
Answer: erosion?
Explanation: the definition of erosion is the movement of rock particles by wind.
Answer: i agree with the person above me
Explanation: it's erosion
question 8 you're a researcher mapping a recessive disease caused by a single-gene on chromosome 9. you've localized it to a region and score offspring from pairings between one parent heterozygous for the disease mutation (as well as two other markers, bbcc, in this phase: bc // bc)) and the other parent homozygous for the disease mutation (as well as for bb
Answers
The disease mutation has been localized to a certain region, and the study involves mating one parent who is heterozygous for the disease mutation (as well as two other markers, bbcc) with another parent who is homozygous for the disease mutation (as well as for bb).
What is the mutation scenario about?A disease mutation is a change in the genetic material (DNA or RNA) of a pathogen (such as a virus or bacterium) that results in a change in its characteristics or behavior. This can include changes in its ability to cause disease, its ability to spread from person to person or from one population to another, its resistance to drugs or other treatments, and other characteristics.
Mutations can occur spontaneously over time, or they can be induced by environmental factors such as exposure to certain chemicals or radiation. In some cases, these mutations can make a pathogen more virulent or more resistant to treatment, which can have serious consequences for public health.
In this scenario, the offspring of the pairing will be scored to determine the presence or absence of the disease mutation and the other markers. The results of this study may provide insights into the inheritance patterns of the disease mutation and help to identify individuals who may be at risk for developing the disease.
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inguinal lymph nodes are found in
Answers
Which of the following is NOT an example of a biological model? (all answers choices 2nd slide)
Answers
Answer:
pictures of different ecosystems
Explanation:
i got it right
How do nucleotides provide nucleic acids with specific codes?
HINT: Think about the structure of nucleotides and the different types of bases found in them.
Answers
Answer:
Nucleotides have specific sequences. When these codes/orders of nucleotides are translated, they code for amino acids, which in turn correspond to specific proteins being made. These proteins are responsible for carrying out various bodily functions.
Why shoud temperature and oxygen be measured in a fish salinity tolerance experiment?
Answers
First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water.
use the diagram of the geologic time scale to list the different divisions of time, beginning with the largest division, the eon.
Answers
The geological time scale is a representation of time based on the rocks. It is divided into different eras and periods depending upon the change in the environmental conditions.
What is the geological time scale?The geological time scale (GTS) is a representation of time which is based on the rocks which have been recorded on the Earth. Geological time scale is a system of chronological dating which uses the chronostratigraphy, the process of relating strata to time period and geochronology, the scientific branch of geology which aims to determine the age of rocks.
Geologic time scale is used primarily by the scientists on the Earth including geologists, paleontologists, geophysicists, geochemists, and paleoclimatologists to describe the timing and the relationship of events in the geologic history.
The different era and periods of the geological time scale is attached with the answer here.
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All living organisms are composed of:
Answers
Answer:
D
Explanation:
Answer:
D. one or more cells
Explanation:
hope this helped!!
plz give brainliest ;-;
Which of the following represents the impacts of drilling and fracking on human health?
I. Toxic chemicals can leak into drinking water.
II. Air pollution can lead to irritation of eyes, nose, and throat.
III. Heavy metal exposure can cause birth defects.
III only
I and II
I and III
I, II, and III
Answers
Answer:
b. I and II
sorry if im late or get it wrong! have a good day! (also i took the test and got it right)
D. Typhoon is classified according to its windspeed. true or false
Answers
Answer:
The answer to your question would be true.
Explanation:
Once a tropical cyclone reaches maximum sustainable winds of 74 MPH of higher, it is then classified as a hurricane, or typhoon, depending upon where the storm originates in the world.
- always expressed when one or two alleles are present
- only expressed when two alleles are preset
Answers
Answer:
A dominant phenotype will be expressed when at least one allele of its associated type is present, whereas a recessive phenotype will only be expressed when both alleles are of its associated type. However, there are exceptions to the way heterozygotes express themselves in the phenotype.
Explanation:
What human activity provides a reasonable analogy for the movement of kinesin molecules along microtubules?a. running on a treadmill.b. climbing a rope hand over hand.c. shooting a fire hose at a beach ball.d. being one of many rowers in a boat .
Answers
Answer:
The correct answer is - option. b climbing a rope hand over hand is correct
Explanation:
The movement of the kinesin molecules led by the head of one kinesin followed by the second one after another same as one hand moves on the rope at a time and followed by the other hand during climbing the rope.
The movement of the kinesin microfilament is due to the increased affinity by ATP of the head of the kinesin for the microtubule. However, the hydrolysis of ATP decreases its affinity so it slides or moves to the plus end.
where is the best place to find information about the hazards that area associated with a compound
Answers
Answer:
Read a Material Safety Data Sheet (MSDS).
Explanation:
Taigas, tundras, and tropical rainforests share what common abiotic component A:nutrient-poor soil B: freezing temperatures C:a lot of sunlight D:little precipitation
Answers
Taigas, tundras, and tropical rainforests have a lot of sunlight
TundraIt has low temperatures throughout the year. Winter is quite severe and summer is cold.
TaigaAlso called coniferous forest due to the predominance of pine and spruce.
Tropical forestThe vegetation is dense and forms strata, depending on the canopy cover of the trees, which gives rise to different microclimates. The vegetation also has epiphytes, lianas and lichens.
With this information, we can conclude that the tundra, taiga and tropical forest have in common the good disposition of sunlight. Correct answer C:a lot of sunlight.
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What is the name given to the
ability of water molecules to
attract each other, bond, and
form a layer?
A. high heat capacity
B. evaporation
C. capillary action
D. surface tension
Answers
Answer:
d. surface tension
Explanation:
i just got it right on acellus :)
_______is the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
Answers
Answer:
Atomic Number
Explanation:
I found this quizlet it might help for your other problems. It has the same questions and answers.
Here: https://quizlet.com/304016728/genera-bio-ch2-flash-cards/
the atomic number
pls give me brainliest
The question as shown in the photo
Answers
Answer:
its the first one
Explanation: