A sensitive and dynamic method of controlling protein activity, stability, protein interaction, and subcellular localization is provided by phosphorylation. Multiple kinases frequently target global regulators, changing the expression of numerous genes.
Kinase mutations can deactivate apoptotic pathways, activate proliferative pathways that disrupt cell cycle checkpoints and lead to genomic instability, inhibit or eliminate DNA damage response, increase angiogenesis and cell motility, or all of the above.Kinase mutations can decrease or abolish the DNA damage response, increase angiogenesis and cell motility, activate proliferative pathways that break cell cycle checkpoints and cause genomic instability, or do all of the above.Hanks-type kinases and phosphatases are used by bacteria for signal transduction, just like eukaryotes, and protein phosphorylation is involved in a variety of cellular processes.
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which of the following is not one of the main methods for reconstructing ancient environments? group of answer choices 40k/40ar analysis of lava flows and of ash layers stable carbon isotope analysis of fossils and of soils oxygen isotope analysis of marine microorganisms faunal analysis of habitat-specific species
40K/40Ar analysis of lava flows and of ash layers of the main method for reconstructing ancient environment.
What are at least three methods used to reconstruct ancient environments?
The three types of biological proxy data that are commonly used to reconstruct past environments are indicator taxa, assemblage analysis, and biophysical responses.
Hence, 40K/40Ar analysis of lava flows and of ash layers.
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Try to guess my zodiac sign.
Answer:
libra.............. maybe
Explanation:
Most scientists can agree on the state of earth's environment when life first appeared. What was the state of the environment when life first appeared on earth?.
The Hadean Bioscience colleagues refer to the early Earth as a "bare planet," meaning that it didn't have an atmosphere or an ocean when it originally formed.
What means of environment?Environment can be defined as a sum total of all the living and non-living elements and their effects that influence human life. While all living or biotic elements are animals, plants, forests, fisheries, and birds, non-living or abiotic elements include water, land, sunlight, rocks, and air.Environment mainly consists of atmosphere, hydrosphere, lithosphere and biosphere. However, it can be loosely categorised into two sorts, namely (a) Micro environments and (b) Macro environments. It can also be split into two more categories, such as (c) the physical environment and (d) the biotic environment.
What is importance of environment?Healthy living as well as the continuation for life on Earth both depend on the environment. Earth is home to many different living beings, and all of us rely on it for necessities like food, air, & water. Therefore, it is imperative that each individual protect and preserve our ecosystem. Geographical setting & artificial environment are the two categories of environments.
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1. Which particle in the nucleus of an atom has a neutral charge?
a. neutron
b. carbon
c. proton
d. electron
Neutron is the answer (a)
in goldfish, the twin-tailed trait has two alleles. goldfish that have a heterozygous genotype produce the single-tailed phenotype. this means that goldfish with the twin-tailed phenotype must be
Answer:
Homozygous recessive
Explanation:
This is because if single-tailed is heterozygous the alleles would be Tt which would mean the single-tailed trait is dominant and twin-tailed is recessive.
T = Single t = twin
So, for a recessive trait to show there would have to be two of them with would make it tt which is homozygous recessive since both of them are recessive.
If you want to affect chromatin packaging, which amino acid could you mutate to affect both histone acetylation and methylation patterns?.
Isyine is an amino acid that can be altered to change the patterns of histone acetylation and methylation.
On Amino, what can you do?You can ch-at with folks who share your interests using Amino. Whatever interests you, you can find news or other information about it. You may read blogs, view videos, and do a lot more on-line.
Is Amino safe to use?Amino is no safer or less risky compared to any other social media net-work in terms of security. If you do decide to allow your child to create a profile, make sure they have all the resources they require before letting them go.
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To be activated, skeletal muscle fibers must receive neurotransmitter from neurons. What structure must neurons penetrate to activate the myofiber?.
To activate the myofiber, neurons must pass through the endomysium structure.
What enters the sarcoplasm and opens the sarcoplasmic reticulum's gates?The impulse travels from the T-TUBULES to the SARCOPLASMIC RETICULUM. 3. The membrane's calcium gates in the Sarcoplasmic Reticulum (SR) open as the impulse passes through it. CALCIUM therefore diffuses between the myofilaments and outside the SR as a result.
The sarcoplasmic reticulum is activated by what?An electrical impulse (action potential) in cardiac and smooth muscle cells causes calcium ions to enter the cell through an L-type calcium channel positioned in the cell membrane (smooth muscle) or T-tubule membrane (cardiac muscle).
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If a mother has some mutations in her mitochondrial dna, who will inherit the mutations?.
Answer: Daughter
Explanation:
The normal 46 chromosomes in our body are contained in the center of the cell, which is called the nucleus. Mitochondria are structures in the cell located outside of the nucleus in the cytoplasm, that also contain genes that are separate from the ones in the nucleus.
Unlike nuclear genes, which are inherited from both parents, mitochondrial genes are inherited only from the mother. If there is a mutation in a mitochondrial gene, it is passed from a mother to all of her children; sons will not pass it on, but daughters will pass it on to all of their children, and so on.
In the parental Mitochondria during sexual reproduction found in the sperm are decomposed thus preventing the parental leakage.
Mitochondria in sperm is usually destroyed by the egg.
If a mother has some mutations in her mitochondrial DNA, her offspring will also inherit the mutations.
What is mitochondrial DNA?Mitochondrial DNA (mtDNA) is present in the mitochondria and is inherited only from the mother cells. Therefore, mutations present the in the mtDNA of a mother cell will also inherit by her offspring.
Nuclear DNA is passed down from both the parents to their offspring, while mtDNA is passed only from the mother because the egg cell of the mother is responsible for contributing majority of the cytoplasm to the embryo, which also includes the mitochondria.
However, mtDNA mutations may or may not have any impact on the health of the mother or offspring and can cause diseases or other symptoms in some cases. Some mutations cause only mild effects, while other mutations may lead to severe health problems.
Therefore, the mitochondrial mutations in the mother will be passed down to their offspring.
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Which option identifies the issue that would affect the ecologist's area of specialization in the following scenario?
An ecologist who specializes in wetlands trends is presenting information to a group of students in a high school
classroom. She makes a statement about the environmental damage caused by the extensive highway systems in
California.
O Highways cut through usable farmland.
O Highways emit large quantities of pollution into the air.
O Highways reduce the amount of available wetlands for plant life.
O Highways provide easy access to urban areas, adding to growth.
Answer:b
Explanation:
After the amino acid chain leaves the ribosome, which organelle then folds, modifies, and transports the protein?.
After the amino acid chain leaves the ribosome, Endoplasmic Reticulum folds, modifies, and transports the protein.
The Golgi apparatus, also known as the Golgi complex, serves as a factory where proteins from the ER are further processed and sorted before being transported to their final destinations: lysosomes, the plasma membrane, or secretion. The endoplasmic reticulum (ER) is a large, dynamic structure in the cell that performs numerous functions such as calcium storage, protein synthesis, and lipid metabolism. The ER's various functions are carried out by distinct domains, which include tubules, sheets, and the nuclear envelope.
Endoplasmic reticulum is classified into two types: Rough Endoplasmic Reticulum: Their primary function in cells is to produce proteins, and ribosomes are attached to their surface. Smooth Endoplasmic Reticulum: Their primary function in the liver and kidney cells is to produce lipids and detoxify toxins in the body.
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How are the light-dependent reactions of photosynthesis related to the light-independent reactions of photosynthesis?
Responses
The light-dependent reactions break down molecules necessary for the light-independent reactions.
The light-dependent reactions break down molecules necessary for the light-independent reactions.
The light-dependent reactions use molecules produced by the light-independent reactions.
The light-dependent reactions use molecules produced by the light-independent reactions.
The light-dependent reactions break down molecules produced by the light-independent reactions.
The light-dependent reactions break down molecules produced by the light-independent reactions.
The light-dependent reactions produce molecules used by the light-independent reactions.
dimples are a dominant trait. a woman (homozygous for dimples) and a man without dimples are expecting a baby. what is the chance that their child has dimples?
Answer: all (%100) will have dimples
Explanation:DD X dd = Dd
which of the following please help me
Answer:
the highest structural level in the elephant body is the foot
why is it difficult to observe individual chromosomes with a light microscope during interphase? view available hint(s)for part a why is it difficult to observe individual chromosomes with a light microscope during interphase? the spindle must move them to the metaphase plate before they become visible sister chromatids do not pair up until division starts the dna has not been replicated yet interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis they leave the nucleus and are dispersed to other parts of the cell
During the interphase, chromatin is in its lax state. DNA is uncoiled and the molecule looks like a single long and thin strand. Option D) Interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis.
When do chromosomes become visible under the optic microscope?After the interphase and during the prophase, the cell suffers a few changes. The nuclear membrane breaks, organelles arrange near the cell periphery, centrosomes move to the opposite poles, and the mitotic spindle extends.
During this stage, chromosomes begin their condensation thanks to the action of hystones and other the proteins associated with them. While they are condensing, they become visible under the optic microscope.
Before the prophase, during the interphase, chromatin is uncoiled, and the DNA molecule is in its lax state.
The correct option is d) interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis.
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Why is it difficult to observe individual chromosomes with a light microscope during interphase?
a) the spindle must move them to the metaphase plate before they become visible
b) sister chromatids do not pair up until division starts
c) the dna has not been replicated yet
d) interphase chromosomes are long, thin strands unlike the condensed chromosomes visible in mitosis
e) they leave the nucleus and are dispersed to other parts of the cell
reginald pisum is homozygous dominant for the trait sativum, or pea-like earlobes. if he were to marry pearl blossom, who is heterozygous for the trait, what proportion of their offspring will also be homozygous dominant? answer 0.25 1.00 0.75 0.5 0 i don't know yet
0.5 Percent of their offspring will also be homozygous dominant.
A homozygous dominant genotype refers to an organism with dominant alleles for a characteristic. This genotype is denoted via way of means of the letter BB the use of the instance of eye color. Heterozygous genotype refers to an organism with one dominant allele and one recessive allele.
When you are heterozygous, you've got got wonderful alleles instead of being homozygous. Each discern gave you a one of a kind model of themselves. The dominant allele in a heterozygous genotype prevails over the recessive one. Consequently, the dominant trait will manifest.
One allele for a dominant trait, together with brown hair, and one allele for purple hair are found in someone who is heterozygous for purple hair. The purple hair allele may be handed directly to their future offspring.
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Pleasee helppp 20 points
Cody found a mineral lying next to the bank. In an attempt to identify it he used a hardness test. He was able to determine that it had a hardness less than corundum but greater than feldspar.
Which of the following could the mineral be?
talc
calcite
quartz
diamond
Answer:
of course quartz, its less than corundum and more than feldspar
Explanation:
occasionally a carbohydrate (phenol red) broth will show a pink color. what is the ph in the tube and what is produced causes this ph change?
Occasionally a carbohydrate (phenol red) broth will show a pink color. The pH in the tube and the causes of this pH change will be alkaline, ammonia.
Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats. Glucose is created by your body's breakdown of carbs. The primary source of energy for the cells, tissues, and organs in your body is glucose, sometimes known as blood sugar.
At every stage of life, carbohydrates, commonly referred to as carbs, are essential. They are the main energy source for the body and the preferred energy source for the brain. The body converts carbohydrates into glucose, a form of sugar. Your body's cells, tissues, and organs use glucose as fuel.
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The complete question is ''Occasionally a carbohydrate (phenol red) broth will show a pink color. What is the pH in the tube and what is produced causes this pH change?
a) alkaline, amino acids
b) alkaline, ammonia
c) neutral, alcohols
d) acidic, ammonia
Describe the one-gene, one polypeptide hypothesis and list some of the evidence in favor of it.
A polypeptide chain can be one or many chains long in a protein. A unique gene codes for each type of polypeptide chain that makes up a protein. The one gene, one enzyme theory was the old idea that one gene produced one enzyme.
But it soon became clear that some proteins have multiple types of polypeptide chains, each of which is encoded by a distinct gene, making them heterogeneous in nature. For instance, the polypeptide chains of the hormone insulin can be divided into A and B chains. They have various genes that encode them.According to the one-gene/one-polypeptide theory, each structurally complicated gene encodes a single polypeptide that can function independently or in conjunction with a more complex protein.The one-gene/one-polypeptide theory “applies to prokaryotes but not to eukaryotes,” according to the study and conclusions to date.This is due to the fact that many eukaryote species’ various spliced forms cannot all be accounted for by a single gene or polypeptide.
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what are relative importance of human biology, lifestyle, the environment, and medical care in contributing to the health of the population.
A relatively important aspect of human biology is genetics.
Genetics is very important in public health, lifestyle, environment, and treatment of medical conditions. Therefore, it is important to lead a healthy life such as exercise, a healthy diet, and mental health to maintain physical and mental health.
The environment also influences this aspect. A healthy and pollution-free environment keeps people healthy and prevents the transmission of diseases such as respiratory diseases and infectious diseases caused by such pollution.
The provision of medical services is also important for maintaining the health of the population. Proper medical treatment in case of illness is very important to restore the health of the population.
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Answer:
Explanation:
The health field concept:
According to the “Health field” concept. There are four major determinants of health or ill health.
A. Human Biology
Every Human being is made of genes. In addition, there are factors, which are genetically transmitted from parents to offspring. As a result, there is a chance of transferring defective trait. The modern medicine does not have a significant role in these cases.
a. Genetic Counselling: For instance during marriage parents could be made aware of their genetic component in order to overcome some risks that could arise.
b. Genetic Engineering: may have a role in cases like Breast cancer.
B. Environment: is all that which is external to the individual human host. Those are factors outside the human body. Environmental factors that could influence health include:
a. Life support, food, water, air etc.
b. Physical factors, climate, Rain fall
c. Biological factors: microorganisms, toxins, Biological waste,
d. Psycho-social and economic e.g. Crowding, income level, access to health care
e. Chemical factors: industrial wastes, agricultural wastes, air pollution, etc
C. Life style (Behaviour): is an action that has a specific frequency, duration, and purpose, whether conscious or unconscious. It is associated with practice. It is what we do and how we act. Recently life style by itself received an increased amount of attention as a major determinant of health. Life style of individuals affects their health directly or indirectly. For example: Cigarette smoking, unsafe sexual practice and eating contaminated food
D. Health care organisation
Health care organisations in terms of their resource in human power, equipment, money and so on determine the health of people. It is concerned with;
a. Availability of health service: People living in areas where there is no access to health service are affected by health problems and have lower health status than those with accessible health services.
b. Scarcity of Health Services leads to inefficient health service and resulting in poor quality of health status of people.
c. Acceptability of the service by the community
d. Accessibility: in terms of physical distance, finance etc.
e. Quality of care that mainly focuses on the comprehensiveness, continuity and integration of the health care.
The highlighted structure is called ___ and it is proportionally _in human compared to the similar structure in the sheep brain.
The lens, which is the emphasized structure, is comparatively smaller in human brains than it is in the brains of sheep.
What is controlled by the brain?The brain regulates many bodily functions, including the function of numerous organs as well as thinking, memory, language, arm and leg motions. By controlling heart and breathing rates, it also affects how people react to stressful situations (such as completing an exam, losing a job, having a baby, being ill, etc.).
Which is more crucial, the heart or the brain?Without a doubt, the brain is the most important component of the human body. The brain is the home of the mind, emotions, personality, and consciousness. It oversees and coordinates all of its skin's other processes, including the heart. Alzheimer's disease and other signs of brain damage
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Where in the eukaryotic cell would you expect to find transcripts with intron sequences?.
You would anticipate a nucleus in a eukaryotic cell.
Describe a cell.The simplest form that can sustain life itself and makes up most living things, including the body's tissues. The cellular membranes, the nucleus, and also the cytoplasm are the three primary components of a cell. The substances that enter and leave the cell were governed by the cell membrane, which encloses the cell.
What does a cell do?They give the body structure, absorb nutrients from meals, turn those nutrients into energy, & perform certain tasks. Additionally, cells have the ability to replicate themselves and store the body's genetic material.
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a population of coues deer inhabiting the american southwest and northern mexico are separated by an impassible fence. over time, these populations adapt and diverge to the extent that they are no longer able to interbreed and produce fertile offspring. this is best described as an example of:
Coues deer that live in the American Southwest and northern Mexico are cut off from each other by an impenetrable fence, and as a result, they can no longer interbreed and give birth to fertile offspring. This is a prime illustration of allopatric speciation.
When a species divides into two distinct groups that are isolated from one another, allopatric speciation takes place. They can't breed with one another because of a physical barrier, such a mountain range or a waterway. Based on the requirements of their particular habitat or the genetic traits of the group that are passed on to offspring, each species grows differently.
Hence, Coues deer development into distinct species is example of allopatric speciation.
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Phantom limb sensations best illustrate that pain can be experienced in the absence of.
describe the structure of a generalized eukaryotic plant cell. indicate the ways in which a nonphotosynthetic prokaryotic cell would differ in structure from this generalized eukaryotic plant cell.
A generalized eukaryotic plant cell plays simple capabilities required to attend to plants. it is a large number of organelles which are structurally supported with the aid of using the cell membrane, that's out of doors of the mobileular wall.
In the mobileular membrane, organelles like chloroplasts assist to facilitate photosynthesis. A mobileular that is non-photosynthetic, like a prokaryotic bacterium, would not require chloroplasts to function. The prokaryote is normally simpler, requiring minimum organelles to survive. that is frequently because, as stated before, it needs much less energy.
It possesses DNA for the intention of containing genetic material, ribosomes to make proteins, a mobileular membrane and mobileular wall to protect the mobileular from its surroundings. While prokaryotes have other components, the ones indexed above are that which can also additionally also be observed in plant cells. apart from that, the nonphotosynthetic prokaryotic mobileular needs tons much less energy, making it tons smaller and some distance much less difficult than the generalized eukaryotic mobileular.
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in what way are plants similar to algae? in what way are plants similar to algae? both have extensive root systems. both can do photosynthesis. both absorb nutrients from their environment through their entire body surface. both have stiff stems that support the organism against gravity.
Plants are similar to algae in the following manner:-
Both of them can perform photosynthesis.
Plants as well as algae produce their food through the process of photosynthesis. During this process, they take up Carbon dioxide gas as well as water and with the help of chlorophyll pigments along with the light absorbed from the Sun, they produce glucose and give out Oxygen gas.
Algae possess chloroplasts, just like all plants with the help of which they are able to perform the process of photosynthesis. However, algae do not contain plant-like structures such as leaves, roots as well as stems, etc.
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Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in the plants' heights over time?.
Answer:its b
Explanation:i think its b
which is not a function of the lymphatic system? question 5 options: 1) transports dietary lipids 2) returns excess interstitial fluid to the bloodstream 3) houses and develops lymphocytes 4) generates immune responses 5) no exceptions; all choices are functions of the lymphatic system.
The correct answer for the given question is: (5) No exceptions, i.e. all of the options show the functions of the lymphatic system.
The lymphatic system has several functions in the body. It is responsible for regulating the fluid levels in the body. It does so by removing extra interstitial fluid from the respective tissues and redirecting it into the bloodstream. The lymphatic system also takes up dietary fats or lipids and is also responsible for the transport of these lipids.
The lymphatic system also acts as a site for the storage as well as the development of lymphocytes. It is also associated with the generation of immune reactions.
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q024) snrnas a. are removed by the spliceosome during rna splicing. b. are translated into snrnps. c. are important for producin
snRNAs can bind to specific sequences at intron-exon boundaries through complementary base-pairing.
What are snRNAs and what is the specifity in the RNA with soluble features?Before the mRNA , there is a phase where the preparation of pre mRNA takes place , and that is done by snRNA.Basically snRNA is used to catalyze the splicing of pre mRNA and are made of many proteins to form RNA protein.RNA is ribonucleic acid and is the primary genetic complement of many organisms and also sometimes it consist of single strand as a genetic complement.It is true that snRNAs are removed by the spliceosome since the formation of pre mRNA is done by then the snRNAs are removed.Also snRNAs are translated to snrnps in the spliceosome along with the associated proteins.To know more about RNA visit:
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FILL IN THE BLANK. a ribozyme is ___ . an rna with catalytic activity an enzyme that synthesizes rna primers during dna replication an enzyme that synthesizes rna as part of the transcription process a catalyst that uses rna as a substrate an enzyme that catalyzes the association between the large and small ribosomal subunits
Catalytically active RNA molecules or RNA-protein complexes, in which just the RNA supplies the catalytic activity, are referred to as Ribozymes.
Does the RNA polymerase enzyme catalyze the synthesis of RNA from a DNA template?During the DNA transcription process, which converts a DNA template into RNA, RNA polymerase enzymes produce an RNA copy of a DNA sequence. RNA polymerases are multi-chained polypeptides with a molecular weight of 500,000. RNA polymerases come in three different varieties in eukaryotic cells.
Which enzyme is primarily in charge of the primary steps involved in creating a new DNA strand?The enzyme DNA polymerase is one of the essential components in DNA replication. DNA is created by DNA polymerases, which incorporate nucleotides.
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Which property of connective tissue is fundamental to
its function of binding tissues and organs?
O cells that contain actin and myosin
O mostly made of protein fibers
O regenerative properties
O tightly packed cells
Connective tissue is composed of proteins, this characteristic is essential to its ability to serve as a link between tissues and organs.
What is connective tissue?Tissue that supports, protects and gives structure to other human tissues and organs. It also helps to transport nutrients and other substances between tissues and organs, connective tissue also helps to store fat and mend damaged tissue. Connective tissue is made up of cells, fibers, and a gel-like substance. Examples of various types of connective tissue include bone, cartilage, fat, blood, and lymphatic tissue.
Mainly connective tissue is classified into loose connective tissue and thick connective tissue.
Whether the connective tissue is lax or dense depends on the ratio of fibrous tissue within it.
The fibrous protein found in connective tissue, which holds the organs and tissues together, is responsible for this trait of binding.
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