Answer:
Nucleus
Explanation:
There are many answers but some are :
Nucleus , Cell membrane , mitochondria , ribosomes
Hope this helped and have a good day
All cells contain cytoplasm, which is made up of cytosol, a jelly-like substance. The cytosol holds the internal structures in suspension.
What is the function of cell organelle in different cells?In addition to the nucleus, eukaryotic cells also have other organelles. An organelle is a cytoplasmic structure that serves a specialized purpose for the cell.
For instance, organelles called vacuoles store materials in the cell, whereas organelles called mitochondria supply energy.
The space between the plasma membrane and the nuclear envelope is known as the cytoplasm in eukaryotic cells, which have a nucleus.
The term “cytoplasm” refers to the entire inside the plasma membrane in prokaryotes, which are without a nucleus.
Therefore, Some cells additionally have a nucleus, cell membrane, mitochondria, and ribosomes in addition to their cytoplasm.
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A point mutation changes a codon in an mrna molecule. Will the mutation affect the polypeptide that forms? why?.
Answer:
maybe
Explanation:
because some sets of codons are translated into the same amino acid
Which training zone is considered the healthy heart zone for improving health related issues like high blood pressure and cholesterol?.
The zone which is considered the healthy heart zone for improving health related issues like high blood pressure and cholesterol is 50 - 60%.
What is high blood pressure?The condition known as high blood pressure often makes the heart to pump blood at a greater pressure than is necessary. This may be caused by blockade of the blood vessels by cholesterol.
Thus, the zone which is considered the healthy heart zone for improving health related issues like high blood pressure and cholesterol is 50 - 60%.
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Briefly explain three constitutional limitations to the right to freedom of expression
The three constitutional limitations to the right to freedom of expression are the does now no longer expand to propaganda for war; incitement of coming near violence.
What are the constraints of freedom of expression in India?Union of India, the Supreme Court held that the liberty of speech and expression has no geographical issue and it consists of with it the proper of a citizen to acquire records and to change notion with others now no longer most effective in India however overseas also.
Section sixteen includes the subsequent boundaries to freedom of expression The proper in subsection (1) does now no longer expand to propaganda for war; incitement of coming near violence; or advocacy of hatred this is primarily based totally on race, ethnicity, gender or religion, and that constitutes incitement to purpose harm.
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Use the following information to calculate the correct frequencies: In a population of
Pennsylvanians, only 18% of individuals express the recessive trait of Syndactyly or webbed finger
(formulas: p+q=1 and p²+2pq+q2²=1)
a. What percentage of the population are not Webbed?
If we have the recessive genotypic frequency, we can calculate the phenotypic frequencies in a population in Hardy-Weinberg equilibrium. The percentage is 82%.
What si the Hardy-Weinberg equilibrium theory?The Hardy-Weinberg equilibrium theory states that allelic and genotypic frequencies remain the same through generations in a population that is in equilibrium.
The allelic frequencies in a locus are represented as p and q. Assuming a diallelic gene,
Allelic frequencies
The frequency of the dominant allele f(X) is pThe frequency of the recessive allele f(x) is qGenotypic frequencies after one generation are
• p² ⇒ H0m0zyg0us dominant genotypic frequency,
• 2pq ⇒ Heter0zyg0us genotypic frequency,
• q² ⇒ H0m0zyg0us recessive genotypic frequency.
The addition of the allelic frequencies equals 1
p + q = 1.
The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
Available data:
18% of individuals express the recessive trait of Syndactyly
Let us say that the dominant allele is A and the recessive allele is a.
The dominant allele A codes for normal finger.The recessive allele a codes for webbed finger.Assuming this gene expresses complete dominance,
H0m0zyg0us dominant and heter0zyg0us -AA and Aa- individuals have normal finger.Their frequency in the population is p² + 2pq.
h0m0zyg0us recessive -aa- individuals have webbed finger.Their frequency in the population is q².
Individuals that express Syndactyly have webbed finger and their genotype is h0m0zyg0us recessive, aa. Their frequency in the population is q².
q² = 18% = 0.18
We can get the frequency of individuals with normal fingers by clearing the following equation,
p² + 2pq + q² = 1
p² + 2pq + 0.18 = 1
p² + 2pq = 1 - 0.18
p² + 2pq = 0.82
The frequency of individuals with normal fingers is p² + 2pq = 0.82 = 82%.
The percentage of the population are not Webbed is 82%.
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How does pancreatic juice get into the alimentary canal in the frog.
This juice includes several digestive enzymes. Since the pancreas lacks a self-dependent duct, the pancreatic juice advances the duodenum via the hepatopancreatic duct.a
Please answer please
Answer:answer is carbon dioxide bud
Explanation:
in a particular variety of corn, kernel corn is controlled by a single gene with two alleles. the dominant allele results in purple kernels, and the recessive allele results in yellow kernels. a single corncob may contain
hundreds of individual kernels, each of which is the result of a separate fertilization event. what would the frequency of yellow kernels be that result from a cross between two heterozygous plants?
25%
0%
75%
50%
The frequency of recessive yellow beans resulting from a cross between two heterozygous plants is 25%.
What are recessive alleles?Recessive alleles differ from dominant alleles in not being able to express themselves in heterozygotes. These alleles are only expressed in the phenotype if they are present in pairs, that is, they must be in homozygosity.
With this information, we can conclude that the frequency of recessive yellow beans resulting from a cross between two heterozygous plants is 25%.
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1pt Recessive traits are less common in a population than dominant traits.
O A. false
OB. true
Answer:
True
Explanation:
Usually, dominant traits will show more often because they are, well, dominant. For example, BB and Bb would both show up with dominant traits. It would be required for all lowercase bs in order for a recessive trait to be seen.
The first three strata of the epidermis consists of ______ keratinocytes and the most superficial strata contain ______ keratinocytes.
The first three strata of the epidermis consists of living keratinocytes and the most superficial strata contain dead keratinocytes.
What is the role of the keratinocytes?Keratinocytes are the most common cell type in the epidermis, the outermost layer of the skin, accounting for over 90% of all cells. They begin in the epidermis's deepest layer, the stratum basale, and progress to the skin's last barrier layer, the stratum corneum.
The stratum basale (germinatum) is the innermost (deepest) layer of the epidermis, followed by the stratum spinosum, stratum granulosum, stratum lucidum (when present), and the stratum corneum, which is the outermost layer.
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the nutritive value of sunflower seeds a brief note
100 grams of these seeds give around 585 calories of energy.
They have a good amount of fibre (8.5 g) and fats (51.5 g). Fats present are mostly polyunsaturated and monounsaturated; which are good fats
They are also rich in protein (20.77 g).
There are 19 plants with rough seeds in a population of 100,what is the allele frequency for smooth seeds?
56.5 is the allele frequency for smooth seeds.
What is allele frequency?The incidence of a gene variant in a population is represented by the allele frequency. Alleles are different versions of a gene that share the same genetic locus on a chromosome.
Given,
how many plants have tough seed= 19
number of plants overall=100
Frequency of the genotype "plant with rough seed," that is= q²= 19/100=0.19
Consequently, the "rough seed" allele frequency= √0.19= 0.435
We know that the sum of the allele frequencies near the locus is equal to one thanks to the Hardy-Weinberg equation.
Thus, p + q =1
By changing the value of q in the above equation, we obtain -
p+ 0.435 = 1
p= 1-0.435
p= 0.565
P stands for the smooth seed frequency.
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What is the main role of t cells in the immune response?.
T cells are a part of the immune system that focuses on specific foreign particles. Rather than generically attack any antigens, T cells circulate until they encounter their specific antigen. As such, T cells play a critical part in immunity to foreign substances.
A parent of a child in a crowded daycare is worried about the staff passing on a bacterial infection to the child. Which infection would be most likely
Answer: Impetigo
Explanation: done this before
the form of energy that refers to the motion of particles______ A. thermal energy B. heat C. temperature
Answer:
A. I think so it's correct
Which organism is the most fit?
Tall giraffe
O Short giraffe
O They are both of the same fitness
O neither are a fit
What of the following will occur after a fire burns down 100 acres of a forest?
Question 2 options:
The forest cannot recover without human intervention
Primary Succession
Secondary Succession
Adaptive Radiation
Secondary Succession will occur after a fire burns down 100 acres of a forest. thus option C is correct.
What is secondary succession?When a disturbance does not completely remove all life and nutrients from the environment, secondary succession occurs.
Despite the fact that fire, flooding, and other disturbances can devastate a landscape, drive away many plants and animals, and reset the biological community to an earlier stage, the habitat remains alive because the soil stores nutrients and seeds that were laid down before to the disturbance.
Buried seeds can sprout soon after the disruption has passed, and some may have a better chance because of less competition and less shading. Some animals may have evolved to deal with a particular disturbance on a regular basis.
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An autotroph is an organism which makes its own food. True or false
Answer:
yes
Explanation:
it can use light and water and carbon dioxide it's a producer.
what types of animals exist in the third trophic level of an aquatic ecosystem
Answer:
Juvenile stages of fish and jellfish, small fish, crustaceans and sea stars
Explanation:
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What is the type given to aduplicate specimen of orginal type
Answer:
Isotype
Isotype: any duplicate specimen of the holotype.
Explanation:
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Why is it a good idea to study experimental subjects in their natural environment? OA. So that a specific problem can be solved as quickly as possible OB. So that the experiment is cheaper and easier to conduct C. So that they respond to the test as they would under normal conditions O D. So that no one else will know what is being studied
How do you mathematically represent chromosomes?
Traditionally, chromosomes are represented in binary as strings of 0s and 1s, however other encodings are also possible; almost any representation which allows the solution to be represented as a finite-length string can be used.
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Explanation:
All chromosomes must be completely replicated prior to cell division, a requirement that demands the activation of a sufficient number of appropriately distributed DNA replication origins. Here we investigate how the activity of multiple origins on each chromosome is coordinated to ensure successful replication. We present a stochastic model for whole chromosome replication where the dynamics are based upon the parameters of individual origins. Using this model we demonstrate that mean replication time at any given chromosome position is determined collectively by the parameters of all origins. Combining parameter estimation with extensive simulations we show that there is a range of model parameters consistent with mean replication data, emphasising the need for caution in interpreting such data. In contrast, the replicated-fraction at time points through S phase contains more information than mean replication time data and allowed us to use our model to uniquely estimate many origin parameters. These estimated parameters enable us to make a number of predictions that showed agreement with independent experimental data, confirming that our model has predictive power. In summary, we demonstrate that a stochastic model can recapitulate experimental observations, including those that might be interpreted as deterministic such as ordered origin activation times
Which material is a part of bedrock?
silt
plants
wood
water
Answer:
A. Silt
Explanation:
I got it right
Silt is a part of bedrock.
What is a bedrock?The bedrock is the solid, hard rock that lies beneath the dirt and gravel of the surface. The majority of rock types, including granite, limestone, and sandstone, can be used to create bedrock. Bedrock can be found hundreds of meters below the Earth's surface, near the planet's crustal base.All areas of the Earth's surface are supported by bedrock, also known as ledge. The majority of the time, it is covered by flora and soil, but in areas like mountain tops, stream banks, and road cuts, it is frequently exposed at the ground's surface. Rockhead refers to a bedrock's top limit. Saprolite may be present over bedrock above the rockhead. Bedrock that has undergone severe weathering, or wearing away, is called saprolite.
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if a gene is located in the Y chromosome could the trait ever be expressed in a female?
What does Hardy-Weinberg equilibrium
illustrate about populations?
A. Any population can remain the same and not evolve.
B. All populations cannot evolve as the conditions are
impossible to meet.
C. All populations evolve because the conditions cannot all
be met.
The Hardy-Weinberg equilibrium illustrates that 'all populations evolve because the conditions cannot all be met' (Option C).
What is the Hardy-Weinberg equilibrium?The Hardy-Weinberg equilibrium is a model used in population genetics to estimate genotypic and allelic frequencies in a population.
This model (HW equilibrium) states that genotypic frequencies remain as constant values in absence of evolutionary constraints.
In conclusion, the Hardy-Weinberg equilibrium illustrates that 'all populations evolve because the conditions cannot all be met' (Option C)..
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bio
which of the following is a density-dependent limiting factor
pls help!
whats the answer?
Answer:
Density-dependent factors include disease, competition, and predation.
Explanation:
Read the article to learn more about the disorders that can occur when there is an irregular number of chromosomes. human chromosomal disorders explain how nondisjunction can lead to aneuploidies.
The formation of the zygote with an abnormal number of the chromosomes is called aneuploidy.
What are the chromosomes?We know that the process of reproduction in organisms would involve the passage of the hereditary facts that can be found in the organisms that are under study. This was the focus of the laws that were put forward by Gregor Mendel. He did say that the factors that do control the inhertiance of the organisms are what we call the genes today.
Let us note that the genes that can be found in the organims as we know them are contained in the chromosomes. The chromosomes are also able to be divided as the cell is being divided. In the stages of the cell division, the process by which the chromosomes are separated is called the disjunction.
There are cases where the chromosomes do not separate and this is what we call the nondisjunction of the chromosomes.
Since the chromosomes do not separate accordingly due to nondisjunction, there would be an unusual number of chromosomes and this is called aneuploidy.
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A molecule of mRNA with the sequence GGUCAUCACUAU experienced a
point mutation that caused the sequence to become GGCCAUCACUAU.
Which of the following terms describes this type of mutation?
Amino acids
Glycine Histidine
Tyrosine
Codons
GGU
CAU
UAU
GGC
CAC
UAC
GGA
GGG
O A. Frameshift mutation
OB. Silent mutation
C. Nonsense mutation
D. Missense mutation
The term that describes the type of mutation is silent mutation, which is option B. Details about silent mutation can be found below.
What is mutation?Mutation is any change in the nucleotide sequence of DNA molecule.
Mutation can be of different types as follows:
Frameshift mutationSilent mutationNonsense mutationMissense mutationSilent mutation is the type of mutation that does not change the resulting amino acid.
According to this question, codon GGU is changed to GGC but they encode the same amino acid (glycine), hence, it is a type of silent mutation.
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Answer:
a
Explanation:
it’s right
1. Can a single organism change its traits to become better suited for its environment during its lifetime? (highlight one) YES or NO
Answer:
check explanation
Explanation:
If you are talking about adapting to an environment then yes, like how we train to strengthen our muscles to get stronger. If you mean by evolving then no, a single organism can not evolve their traits in a lifetime, like a human can't naturally grow gills to breathe underwater
For most anchoring situations, which is the best type of anchor line?.
Nylon Three-Strand line is the most commonly used anchoring line. The correct option is A.
What is anchor line?Anchor rodes can be all rope, all chain or a combination of both. The term “anchor line” as used here refers to the nylon portion of the rode.
Anchor rodes generally consist of a long length of nylon line with an eye splice and a thimble to which is shackled a short length of galvanized chain.
The missing options are:
Nylon.Dyneema.Polyethylene.Nylon Three-Strand line is the most commonly used anchoring line.
Thus, the correct option is A.
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A green plant is a type of producer,
also known as a (n).
A. autotroph
B. heterotroph
C. chemotrophy
Copyright ©2003-2002 International Academy of Science. All Rights Reserved
5
Option A) Autotroph
Explanation:
Autotrophs - which can obtain their food from inorganic sources in the form of Carbondioxide and water , e.g green pkants and some bacteria. They use simple food material while heterotrophs utilitie complex substances for obtaining energy.