In stabilizing selection, what categories of phenotypes is selection "editing out" of the population?
Answers
In stabilizing selection, selection is "editing out" extreme phenotypes and selecting for intermediate phenotypes. This means that individuals with extreme or unusual traits on either end of the distribution are less likely to survive and reproduce, while those with more average or intermediate traits are favored. This can result in a reduction of genetic variation and the prevalence of a specific phenotype in a population.
The genetic composition of organisms within the population changes is denoted as genetic variation. Genes are inherited DNA segments that contain protein-coding information. Alternate forms of genes, also known as alleles, decide various features which can be passed down from parents to kids. Genetic variation is fundamental for natural selection since it can only enhance or reduce the frequency of alleles. The following factors contribute to genetic variation:
Mutation
Random fertilisation
Random mating between organisms
Crossing over among chromatids of homologous chromosomes during meiosis
Variation permits certain members of a population to adapt to changing conditions. Because natural selection mainly affects phenotypes, more genetic diversity within a population usually leads to more phenotypic variability.
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Related Questions
Which two sentences use coordinate adjectives?
A.The dark, musty cellar was full of mice.
B. We rode down a long dirt road on a sunny morning.
C. The dark-haired, hazel-eyed baby was gurgling happily.
D.Alan is wearing a pale blue sweater.
Answers
The two sentences which use coordinate adjectives include:
The dark, musty cellar was full of mice.The dark-haired, hazel-eyed baby was gurgling happily.What are Coordinate adjectives?These are words which describe the features of the same noun and is usually separated by a comma.
Options A and C have coordinate adjectives such as 'dark' and the 'dark-haired' respectively.
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Explain the process that links the physical sensory world and
the brain for each of the senses (vision, hearing, taste, smell,
and touch).
Answers
The process that links the physical sensory world and the brain for each of the senses (vision, hearing, taste, smell, and touch) is known as transduction.
Here's how transduction works for each of the senses:
1. Vision: The eye transduces light energy into neural impulses, which are then transmitted to the brain via the optic nerve.
2. Hearing: The ear transduces sound waves into neural impulses, which are then transmitted to the brain via the auditory nerve.
3. Taste: Taste buds on the tongue transduce chemical signals from food into neural impulses, which are then transmitted to the brain via the gustatory nerve.
4. Smell: Olfactory receptor cells in the nose transduce chemical signals from odors into neural impulses, which are then transmitted to the brain via the olfactory nerve.
5. Touch: Sensory receptors in the skin transduce physical pressure, temperature, and pain into neural impulses, which are then transmitted to the brain via various sensory nerves.
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What effect did the agricultural revolution have on the growth of the human population?
Answers
Answer: Positive and Negative
Explanation: As these early farmers became better at cultivating food, they may have produced surplus seeds and crops that required storage. This would have both spurred population growth because of more consistent food availability and required a more settled way of life with the need to store seeds and tend crops.
Both the Psoas major muscle and iliacus muscle insert on the __________. intertrochanteric crest greater trochanter of the femur linea alba of the femur lesser trochanter of the femur
Answers
Answer: The lesser trochanter of the femur
Explanation:
I just typed it and it said correct on the same question
1) Read the following paragraph and answer the following questions.
The countries which do not have oil reservoirs in their land, import oil from other countries. But sometimes during transportation of oil through sea routes, accidental oil spill occurs. This oil spilled in the ocean may prove fatal and toxic to aquatic animals. Therefore, removal of this spilled oil is essential for protection of aquatic life. For removing this oil layer, certain microbes like Pseudomonas spp and Alcanivorax borkumensis are used. These microbes have the ability to destroy the pyridines and other toxic chemicals. The hydrocarbonoclastic bacteria (HCB) are able to decompose the hydrocarbons and bring about the reaction of carbons with oxygen resulting in formation of CO2 and water. Like oil spills cause damage
to aquatic life, plastic forms the major part of the garbage on the land. Plastics are difficult to degrade as they are made up of PET, by research various species like Vibrio and Ideonella sakaiensis which can degrade PET have been identified. There are certain species of microbes which can decompose rubber from garbage.
a) How are aquatic organisms affected by oil spills in the ocean?
b) Which type of chemical compounds are degraded by microbes used for
clearing oil spills?
c) Name any two species of microbes which can degrade rubber from
garbage.
d) Why should there be a ban on plastic bags?
Answers
Answer: See explanation
Explanation:
a) How are aquatic organisms affected by oil spills in the ocean?
Aquatic organisms are affected by oil spilled as it is fatal and toxic to them. It can cause death, habitat degradation, vulnerability to predators and can also lead to the inability to hatch their eggs.
b) Which type of chemical compounds are degraded by microbes used for
clearing oil spills?
The chemical compound degraded by microbes are clearing oil spills are Pseudomonas spp and Alcanivorax borkumensis.
c) Name any two species of microbes which can degrade rubber from
garbage.
These are Vibrio and Ideonella sakaiensis.
d) Why should there be a ban on plastic bags?
There should be a ban on plastic bags as they're difficult to degrade as they are made up of PET.
HELPPPP!
6. Transition metals
form anions
make up molecules
can have cations with more than one charge
are dull and brittle
Answers
Transition metals are a group of elements in the periodic table that have unique properties. One of the key characteristics of transition metals is that they can have cations with more than one charge.
This is due to their ability to lose different numbers of electrons from their outermost shell. Transition metals are also known for forming anions, which are negatively charged ions. However, it is important to note that not all transition metals can form anions. In addition, transition metals are often found in complex molecules due to their ability to form bonds with a variety of other elements. While some transition metals may have a dull or brittle appearance, this is not a universal property of the group. In fact, many transition metals are known for their luster and strength. Overall, the unique properties of transition metals make them important in a variety of fields, from medicine to electronics to construction.
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Fill in the blank. ____________is a technique used to quickly synthesize billions of copies of a specific segment of dna.
Answers
Polymerase Chain Reaction (PCR) is a technique used to quickly synthesize billions of copies of a specific segment of DNA.
PCR is a widely-used molecular biology tool that enables researchers to amplify a desired DNA segment exponentially. This technique involves the use of heat, DNA polymerase, primers, and nucleotides to facilitate multiple rounds of DNA replication, generating numerous identical copies of the targeted DNA sequence.
In summary, the Polymerase Chain Reaction (PCR) is the essential technique for rapidly generating large quantities of a specific DNA segment, making it a crucial tool in various scientific and medical applications.
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From your reading (Lehman et al. Ch. 4), there is a simple model of exponential population growth using a recursion equation (not a differential equation) as programmed in R (modified slightly to create a variable for r ): N=1;t=0;r=2; while (t<=24) \{print (N); t=t+1;N=N
∗
r;} Open a new R Script and name it: "Lab2_YourLastName.R". Add the above lines of code and run them. Use a comment line above the code in your script to describe what this code does. 1. Now create a new set of code where you modify the above code to have it store the output for the different values of N over time and plot the output as a line (types"l"). Include the code with annotations ( # ) in your R script that you will turn in (10 points). 2. Use the general solution to the equation above (Eq. 4) to calculate the size of the population at the final point in time using this INSTANTANEOUS rate of growth. Is this the same as your answer from the recursive output from R ? Why or why not (answer using an annotation line in your code that is labelled with this question number)?
Answers
The modified code stores and plots the population sizes over time. The final population size calculated using the general solution differs from the recursive output because it assumes continuous instantaneous growth.
To create a modified version of the given code that stores the output for different values of N over time and plots the output as a line, you can use the following code in the "Lab2_YourLastName.R" script:
```R
# This code demonstrates exponential population growth using a recursion equation.
# It calculates the population size (N) at each time step (t) based on a constant growth rate (r).
N <- c() # Create an empty vector to store population sizes
t <- 0
r <- 2
while (t <= 24) {
N <- c(N, N) # Append the current population size to the vector
t <- t + 1
N <- N * r # Calculate the new population size
}
plot(N, type = "l", xlab = "Time", ylab = "Population Size") # Plot the population sizes as a line
```
By running this modified code, the population sizes at each time step will be stored in the vector `N`, and the resulting plot will show the growth trajectory of the population over time.
The general solution to the exponential growth equation is the same as the recursive output from R, add the following annotation line in your code:
```R
# The final population size calculated using the general solution is not the same as the recursive output from R.
# This is because the recursive output considers discrete time steps and constant growth rate over each time step,
# while the general solution assumes instantaneous growth, which is continuous and allows for a more precise estimation.
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why are antibiotics unhelpful for treating the common cold ?
A. Colds are cause by Viruses B. Colds are caused by antibiotics C. Antibiotics cannot treat illnesses D. Bacteria are not killed by antibiotics
Answers
Answer:
A
Explanation:
antibiotics fight bacteria not viruses
What might have happened to the color-blind allele in the Pingelapee population following the typhoon if Mwanenied had had no children?
Answers
If he had never given birth, there would be a significant decline in population and nearly no one would be color blind.
The population has changed since color blindness is a symptom of inbreeding, and because of its tiny size and secluded location, achromatopsia is more common.
Achromatopsia is a rare, bilateral inherited retinal degeneration affecting all three types of cone photoreceptor cells that results in reduced visual acuity, photophobia, hemeralopia, and severe loss of color discrimination.Only the genotype frequencies, not the allelic frequencies, are altered by inbreeding.
Inbreeding, which is typically the outcome of mating related individuals, is defined as the probability that two alleles in an individual are identical by ancestry.
Red-green color vision abnormalities are brought on by genetic alterations involving the OPN1LW or OPN1MW genes. Defects in blue-yellow color vision are caused by OPN1SW gene mutations.
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What might have happened to the color-blind allele in the Pingelapese population following the typhoon if Mwanenised had had no children? Has the Pingelapese population evolved? Explain. (Hint: Does inbreeding cause a change in allele frequencies?)
Which statement accurately describes the relationship between weight and mass? Mass is an object's weight multiplied by its diameter Mass is an object's weight multiplied by its diameter Mass is an object's weight multiplied by the amount of gravitational force acting on that object Mass is an object's weight multiplied by the amount of gravitational force acting on that object Weight is an object's mass multiplied by the amount of gravitational force acting on that object Weight is an object's mass multiplied by the amount of gravitational force acting on that object Weight is an object's mass multiplied by its diameter Weight is an object's mass multiplied by its diameter
Answers
Answer:
Weight is an object's mass multiplied by the amount of gravitational force acting on that object
How does a fossil gets into the fossil record?
Answers
Answer:
Explanation:
For an organism to be fossilized, the remains usually need to be covered by sediment soon after death. Sediment can include the sandy seafloor, lava, and even sticky tar. Over time, minerals in the sediment seep into the remains. The remains become fossilized
Answer:
i got u
Explanation:
For an organism to be fossilized, the remains usually need to be covered by sediment soon after death. Sediment can include the sandy seafloor, lava, and even sticky tar. Over time, minerals in the sediment seep into the remains. The remains become fossilized.
how food proteins get converted to body proteins?
Answers
Answer:
Food proteins get converted by
Explanation:
It gets convered like this when you eat your meal, it goes and gets to your stomach , when it has reached there now hydrochloric acid and enzymes take over therefore these are called proteases break it to smaller bits of amino acids.
a new operon called terperon is discovered and is not normally transcribed. it is stimulated by the presence of dukease. what kind of control is terperon?
Answers
A new operon called terperon is discovered and is not transcribed. It is stimulated by the presence of dukease, then kind of control terperon is : Positive repressible
What is meant by operon?Cluster of genes that are transcribed together to give a single messenger RNA (mRNA) molecule, and which therefore encodes multiple proteins is called operon.
Based on the information provided, it seems that terperon is under positive repressible.
Repressible control is where a gene is transcribed but can be turned off in response to a specific signal or corepressor whereas in inducible control, gene is not transcribed until the inducer is present.
Therefore, based on the information provided, it seems that terperon is positive repressible.
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a salmon moves from a salwater ocean to a freshwater river what takes place in the salmon cells as it moves
Answers
Answer:
The cells fill with water because of the movement of water by osmosis.
Explanation:
Answer:
the cells fill with water because of the movement of water by osmosis
Explanation:
A population of 600 plants contain 294 AA, 252 Aa, and 54 aa individuals. AA and Aa plants produce purple flowers while aa plants produce white flowers. What are the frequencies of the following?
Allele A
Allele a
purple-flowered plants
white flowered plants
genotype AA
genotype Aa
genotype aa
Answers
Answer: If both the AA and Aa individuals have Allele A, then the proportion of individuals with Allele A = (294 + 252)/600. However, if you want the proportion of times that A occurs in the gene pairs, this is ([2*294] + 252)/(2*600).
Proceed in a similar way with the other problems.
Explanation:
10 lines about clouds for class 7
Answers
Answer: Clouds are white and brown and are seen floating in the sky.
Clouds are made of drops of water and ice crystals.
When the heat increases on the earth, the water of the river, pond, sea, etc., becomes steam and rises.
Some dust particle also goes up with water during the rise of steam.
The particles of dust and steam go up and form the clouds.
Clouds are in different pieces, and their size and weight are also different.
The amount of water in the white cloud is less; due to the sun's rays falling on them, they appear white.
Water in the brown cloud is more so that it rains more.
The presence of brown clouds gets dark all around us because the sun's rays can't cross these clouds.
When two excessive rain clouds collide with each other or a mountain due to excessive rainfall, problems such as floods and earthquakes arise, called the bursting of clouds.
Explanation:
Explain the adaptations for root hair cell
Answers
Answer:
they have thin membranes to allow diffusion of substance for short distance
they are numerous to increase the surface area of absorption
hope this helps
No one has found an actual dinosaur gizzard, but they
have found small piles of round rocks inside dinosaurs’ ribcages. Based on its function,
the gizzard is part of the _________________ system.
Answers
The stomach is explained as the mechanical stomach of a bird which is located just after the true or glandular stomach in the gastrointestinal system.
What is Gizzard?Gizzard is also defined as ventriculus, the gastric mill which is an organ found in the digestive tract of some animals, including archosaurs, earthworms, some gastropods, some fish, and some crustaceans.
Gizzard have many important functions, for example, reduction of particle size, chemical breakdown of nutrients and aid in digestion by regulation of feed flow, and respond rapidly to changes in dietary roughness.
Thus, the stomach is explained as the mechanical stomach of a bird which is located just after the true or glandular stomach in the gastrointestinal system.
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What does it mean to die of "natural causes" or to die of "old age"?
Answers
Explanation:ya que el cuerpo se dessasta por estar en funsionamieto pormucho tiempoc
On the other hand, dying of “old age” is quite similar. It just means someone who is old died from a disease. You can’t actually die of old age. Older people just have a higher chance of getting illnesses than younger people, and possibly dying from it.
I hope that made sense. If it didn’t, I’m sorry there’s no other way for me to explain it properly
Which type of mutation happens when an organism has extra genetic material?
O Deletion
O Duplication
O Inversion
O Translocation
Answers
Answer:
B.) Duplication
Explanation:
A.) is incorrect because deletions involve the removal of one (or more) nucleotides during the DNA replication process.
B.) is correct because duplication involves duplicating a nucleotide (or more) of the DNA strand. This results in repeated genetic material.
C.) is incorrect because inversion involves a section of DNA bein removed and reattached backwards during DNA replication.
D.) is incorrect because translocation involves a section of a chromosome being removed and added to another chromosome.
Answer:duplication
Explanation:all others answers are either removing or keeping the same amount of genetic material
1.1.1 A young woman stepped on a dirty, rusty nail. The following diagrams
show bacteria isolated from the wound and a range of antibodies that
were already present in her body. The antibodies have a specific shape that
binds with the antigen found on the surface of the bacteria
N
P
bacteria
antibodies
The bacterium most likely to cause a severe infection is ...
A M
B. N
C.O
D. P
Answers
Answer:
M
Explanation:
HOPE IT HELPS :)
1. What are two of the evidence-based ways that solar parks can be modified to protect and enhance pollinator biodiversity, according to these researchers?
Answers
According to researchers, there are two evidence-based ways to modify solar parks to protect and enhance pollinator biodiversity.
The first method involves incorporating native flowering plants within the solar panel arrays. This provides a habitat for pollinators such as bees and butterflies, increasing their numbers
. The second method involves reducing the frequency of mowing or maintenance in the areas surrounding the solar panels.
This allows for the growth of natural vegetation, which provides a food source for pollinators and also creates a more natural habitat. Both of these modifications have been shown to positively impact pollinator biodiversity in solar parks, making them more environmentally sustainable.
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Select all that apply.
Cells function together to form tissues. The four main types of tissues in animals are _____.
epithelial
blood
connective
muscular
nervous
bone
Answers
Connective
Muscular
Nervous
Cells in animals function together to form tissues. The four main types of tissues in animals are epithelial, connective, muscular, and nervous. The correct options are 1,3,4, and 5.
In animals, cells come together to form tissues, which are groups of cells that work together to perform specific functions. There are four main types of tissues in animals:
Epithelial Tissue: Epithelial tissue lines internal organs and is similar to the skin that covers the outside of the body. Connective tissue: It binds and stabilises the various bodily components. It consists of organs and tissues like cartilage, tendons, and ligaments.Muscular Tissue: Movement in the body is made possible by muscular tissue. Muscle tissues come in three different varieties: cardiac muscles, smooth muscles, and skeletal muscles.Nervous Tissue: The body's ability to communicate depends on its nervous system. It is made up of neurons that send electrical impulses, enabling us to detect and react to our surroundings.Thus, the correct options are 1,3,4, and 5.
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Explain two ways in which root hair cells are adapted to carry out their functions.
PLS HELP URGENT.
Answers
Answer:
Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption. They also contain lots of mitochondria, which release energy from glucose during respiration in order to provide the energy needed for active transport.
Explanation:
Which is a future NASA research project?
using a probe to collect data
conducting research from a space station
collecting samples on an asteroid
conducting a space mission with no people
Answers
Answer:
A. Using a probe to collect data
Explanation:
I think Hope it helps
Answer:
collecting samples on an asteroid
Explanation:
collecting samples on an asteroid
Just took the test and Got it right!
You fill a storage cabinet with 12 bottles of normal saline. Each bottle contains 1000 mL. How many ounces of this solution are in the storage cabinet?
Answers
Answer:
Answer:amount of solution in the storage cabinet(ounces) ≈ 405.80
Explanation:
You are so h
There were 12 bottles of regular saline in the storage cabinet. Each bottle holds 1000 mL of ordinary saline, so 405.80 ounces of solution are contained in the storage cabinet.
How to calculate the ounces of this normal saline?This suggests that the storage cabinet's normal saline supply is 1000 mL divided by 12 bottles or 12000 mL.
Find the solution's volume in ounces in the storage cabinet, according to the query. As a result, we must convert from milliliters to ounces.
1 mL equals 0.033814022558919 ounces.
12000 = ?
The cross-multiplies
There are 12,000 ounces of solution in the storage cabinet, divided by 0.033814022558919.
405.768270707 ounces of solution are in the storage cabinet.
Therefore, 405.80 ounces of solution are contained in the storage cabinet.
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Question 3 How many phenotypes result from a dihybrid cross involving completely linked genes (i.e., no crossover)?
A) 6
B) 2
C) 9:3:3:1
D)4
Answers
The number of phenotypes result from a dihybrid cross involving completely linked genes is B. 2.
A dihybrid cross is a genetic cross between two individuals who are both heterozygous for two distinct genes. The inheritance of both genes is studied in dihybrid cross. There are various aspects of Mendelian genetics that a dihybrid cross may demonstrate.
The law of independent assortment is demonstrated in a dihybrid cross involving unlinked genes. When two unlinked genes on two different chromosomes are considered, the F2 offspring will show a 9:3:3:1 phenotypic ratio. When both genes are completely linked, the F1 offspring will have only two phenotypes. In other words, in a completely linked dihybrid cross, only two phenotypes will be produced by the F1 offspring. Answer: B) 2
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Why is rubisco so prevalent and important?
Answers
Answer: RuBisCO is very important in biology and ecology because it catalyzes the primary chemical reaction by which inorganic carbon permanently enters the biosphere. RuBisCO is also the most abundant protein in leaves and the most abundant protein on Earth.
Explanation:
Recall what you know about nervous tissue to answer the following questions. Nervous tissue can generate and conduct ____ signals that control the body.
answer choices are:
chemical
electrical
thermal
Answers
Answer:
Nervous tissue can generate and conduct electrical signals that control the body.
Explanation:
The neuron is the specialized cell that provides function to nerve tissue. Given the structure of the neuron, this cell is capable of creating and conducting information in the form of electrical impulses or signals, by depolarizing its cell membrane and generating action potentials.
The information generated and transmitted by the neurons allows the nervous system to obtain internal and external information of the organism, as well as to control all the body functions.
The other options are not true because nerve tissue does not generate or conduct thermal or chemical signals to perform its function.
Answer:
Part 1: electrical
Part 2: A, B, E
Explanation:
did it on edg.