What are the two examples of keratin and enzymes
Answers
Answer:
I know that keratin is found in the protein of hair, nails, horn, hoofs, wool, feathers, etc.
Explanation:
Related Questions
FOR 100 POINTS AND I WILL MARK BRAINLIEST!!!!!
Horses have three basic coat colors: red (or chestnut), bay, and black. All the colors are controlled by the interaction of two genes, Extension (E) and Agouti (A). The following combinations produce bay color: EE/Aa, Ee/Aa, EE/AA, Ee/AA. Only two produce black color: EE/aa, Ea/aa. Other combinations of the alleles of these genes plus mutations of others result in many possible coat colors and patterns in horses
Coat color in horses is an example of which type of inheritance?
(1 point)
A. polygenic inheritance
B. dominant inheritance
C. Mendelian inheritance
D. recessive inheritance
Answers
Answer:
A. Polygenic inheritance
Explanation:
When the qualities or the attributes are passed from the parent to their progeny is called inheritance. It can be passed either sexually or asexually.
The correct answer is:
Option A. Polygenic inheritance
This can be explained as:
When a trait is regulated by two or more genes is called polygenic inheritance.Dominant inheritance occurs when the qualities from the parent possessing the dominant gene pass to the progeny.According to Mendelian inheritance paired genes assorts independently and are passed from parent to their progenies.Therefore, coat colour in horses is an example of polygenic inheritance.
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A significant change in temperature or pH can change the shape of an enzyme’s active site.Explain why a change in the shape of an active site denatures an enzyme, and discuss the impact on the chemical reaction that relies on an enzyme that has been denatured. Write 3-5 sentences.
Answers
A change in the shape of an active site denatures an enzyme by altering the chemical bonds within an enzyme, which decreases the rate of reaction.
An increase in temperature will commonly increase the rate at which an enzyme functions. This will cause the rate of chemical reaction to increase as well. However, for this to occur, the temperature must remain within the optimal range. Anything that exceeds this range will cause the chemical bonds within the enzyme to break and the enzyme to loose it's shape.
When an enzyme is placed in an environment whose temperature exceeds it's optimum range and the enzyme is denaturalized, the active site may lose its shape. When this happens the substrate will not be able to fuse to the enzyme and the chemical reaction which depends on this enzyme will decrease its rate.
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1.Explain how the TATA box and transcription
factors work together to ensure that RNA
polymerase is transcribing the correct region of the
DNA molecule
Answers
Answer:
The TATA box is an alternating sequence of Adenine and Guanine nucleotides that transcription factors bind to. The TATA box is found just before a gene. The transcription factors tell the RNA polymerase where to bind to begin transcription. This ensures the RNA polymerase will know where to start and which gene to transcribe.
Explanation:
In eukaryotes, the TBP protein binds to the TATA box during the formation of the RNA pol complex, while transcription factors help to promote transcription.
The TATA box is a nucleotide (DNA) sequence located very proximal to the Transcriptional Start Site, within the promoter region of the eukaryotic genes.This sequence (TATA box) binds to a specific transcription factor known as the TATA Binding Protein (TBP), which is required during the formation of the RNA polymerase (RNA pol) transcriptional complex.Moreover, transcription factors are proteins that bind to different nucleotide sequences located at both the promoter and enhancer regions of genes, which are capable of promoting transcription.For example, basal (general) transcription factors bind to the promoter region of eukaryotic genes to induce the attachment of the RNA pol, which is required to initiate transcription.In conclusion, the TBP protein binds to the TATA box during the formation of the RNA pol complex, while transcription factors help to promote transcription.
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Is a Apple a carbohydrate?
Answers
No. It is not a carbohydrate. It is a solid item
yes it is, it contains 25 grams of carbs
I'll give BRAINLIEST if you answer this correctly
Answers
Answer:
i would say 6 but it might not be right
Explanation:
The sequence below represents one side of a DNA strand.
GAA TTC GCA
What would the complimentary DNA strand be during the process of DNA replication?
CUU AAG CGU
GAA CCT CAT
CTT AAG CGT
GAA TTC GCA
Answers
Answer:
GAA TTC GCA Original strand
CTT AAG CGT Complimentary strand
Explanation:
The original strand is already given. It is GAA TTC GCA
Now we need to recognize the complementary strand from the pool of options and pair their bases. Names are written with their letters.
Nitrogenated bases that form nucleic acids correspond to purines and pyrimidines.
Adenine (A) and guanine (G) derive from purines, Thymine (T) and Cytosine (C) derive from Pyrimidines.In the DNA molecule, Adenine (Purine) forms pairs with Timine (Pyrimidine), while Guanine (Purin) pairs with Cytosine. Two hydrogen bonds join the A-T pair, and three hydrogen bonds join the G-C.
Knowing this, we need to find the correct option, which will pair A with T and C with G.
1st Strand → CUU AAG CGU → You can eliminate this option because it includes Uracil, which is a base of RNA. Uracil complements with Adenine, but only in RNA, and now we are looking for a DNA complementary strand.2nd Strand → GAA CCT CAT → None of the triplets pair correctly the original strand. It is not complementary4rth Strand → GAA TTC GCA → This is equal to the original strand. It does not complement it. 3rd Strand → CTT AAG CGT → The three triples complement the ones of the original strand. This is the correct option.G ⇔C
A ⇔ T
A ⇔ T
T ⇔ A
T ⇔ A
C ⇔ G
G ⇔ C
C ⇔ G
A⇔ T
Which organelle stores water and helps to maintain the plant cell shape? C D B E A F G H
possible answers:
a
e
f
h
Answers
Answer:
H. Vacuole.
Explanation:
Vacuole is the organelle that is responsible for storing of water and helps to maintain the shape of plant cell. Plant cell has one large vacuole that maintain water balance in plant cell. vacuoles are also used to store cellular fuel by some cells in animals, plants, and microorganisms. In animals, vacuole is small and responsible for the storing of waste products that are produced in the cell.
Answer:
h
Explanation:
got it right on flvs:)
arrange the following compounds in increasing order of elution (rf ) on a tlc plate using ethylacetate as solvent. (a) Benzene (b) Benzoic Acid (c) Benzyl Alcohol (d) benzaldehyde
Answers
The following compounds in decreasing order of elution on a TLC plate using ethyl acetate as solvent are benzoic acid < benzyl alcohol < benzaldehyde < benzoic acid.
A popular separation technique for both quantitative and qualitative analysis is thin layer chromatography (TLC). It makes use of a glass, plastic, or aluminium plate covered with a thin coating of a stationary phase. The mobile phase, a liquid solvent, transports and separates the sample as it passes over the plate. Compared to other separation procedures, it has the benefits of simplicity, sensitivity, and quick analysis.
Non-volatile mixtures can be separated using the chromatography technique known as thin-layer chromatography (TLC).
A sheet of an inert substrate, such as glass, plastic, or aluminium foil, is used for thin-layer chromatography. This substrate is covered with a thin layer of an adsorbent material, often silica gel, aluminium oxide (alumina), or cellulose. The stationary phase refers to this adsorbent layer. A solvent or solvent combination (referred to as the mobile phase) is dragged up the plate by capillary action after the sample has been placed on the plate.
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How can a change in genotype affect phenotype?
Answers
The relationship between genotype and phenotype is complex and influenced by various genetic and environmental factors.
The main idea of chromosomal disorders is nondisjunction, the failure of homologous chromosomes to separate during meiosis, can lead to chromosome number disorders. Nondisjunction during meiosis results in an individual having three copies of chromosome 21 instead of the usual two. It causes Down syndrome.
The main idea of from molecule to phenotype is a difference of one DNA base in a single gene determines whether a person has dry earwax or wet earwax. The ABCC11 gene encodes a protein that is involved in the secretion of earwax. A single nucleotide polymorphism (SNP) in this gene determines the type of earwax an individual has.
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Next > Pretest: Organization of Organisms Su Drag each tile to the correct location. Match the characteristics to the correct phylum. organisms lack symmetry adult forms are sessile organisms have specialized stinging cells two types of body plans exist-polyp and medusa organisms obtain food by filtering water phenomenon of alternation of generation is observed Cnidaria Porifera
Answers
Answer:
Cnidaria
→ Organisms have specialized stinging cells
→ Two type of body plans exist - polyp and medusa
Porifera
→ Organisms lack symmetry
→ Adult forms are sessile
→ Organisms obtain food by filtering water
→ Phenomenon of alternation of generation is observed.
Explanation:
Cnidaria, also known as the coelenterata, is a phylum of mostly marine animals having about 9,000 living species. Some of them include the corals, hydras, jellyfish, sea anemones, sea whips, etc. They possess specialized cells known as cnidocytes ( also known as “stinging cells”). These cells can seen around the mouth and tentacles cnidarian. They immobilize their prey with toxins. These Cnidaria have two body plans and which are polyp and medusa.
The phylum Porifera are known as the pore bearers. It has about 5000 species. Their adult forms are sessile. They live permanently attached to rocks. They can under alternation of generation. They possess no organs in their bodies. Also, they lack symmetry. They can be referred t as filter feeders because they obtain food by filtering water.
i need help please????
Answers
Answer:
a
Explanation:
In both plants and animals, RNA contains
deoxyribose sugar, phosphates, adenine, uracil, guanine, and cytosine
ribose sugar, phosphates, adenine, thymine, guanine, and cytosine
ribose sugar, phosphates, adenine, uracil, guanine, and cytosine
deoxyribose sugar, phosphates, adenine, thymine, guanine, and
cytosine
Answers
Answer:
option (C)
Explanation:
In both plants and animals, RNA contains:
Ribose sugar, phosphates, adenine, uracil, guanine, and cytosine.
why are casts, molds, and trace fossils so common?
Answers
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. Any mold fossil can potentially form a cast mold.
Explanation:
Answer:
Cast fossils occur when mold fossils are filled in with minerals that harden over time, creating a fossilized replica of the original organism. Water seeps through the rock surrounding the mold fossil, leaving behind minerals which fill the mold. ... Any mold fossil can potentially form a cast mold
Explanation:
pls make me brainliest
Please help As fast as you can!
Answers
Lipids are good energy storage molecules because
O they cannot be broken down by enzymes.
O they can absorb a large amount of energy while maintaining a constant
temperature.
O they have many carbon-hydrogen bonds.
O they are composed of many simple sugars.
Answers
Lipids are macronutrients that function as good energy storage molecules because they have many carbon-hydrogen bonds (Option C).
What are lipids?Lipids are a broad class of macromolecules that function as macronutrients because the chemical process of breakdown of their chemical bonds releases important amounts of energy.
Lipids are generally composed of a glycerol backbone linked to several fatty acid chains, which contain many carbon-hydrogen bonds that provide energy according to the requirement of the organism.
In conclusion, lipids are macronutrients that function as good energy storage molecules because they have many carbon-hydrogen bonds (Option C is correct).
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Mutations within an organism can occur in body cells or reproductive cells. Which type of mutation is seen in a sperm
cell but not in a skin cell?
somatic mutation
missense mutation
nonsense mutation
germline mutation
Answers
Vector contact involves contact with __________. a. an infected surface b. contaminated water c. an infected organism d. a carrier organism please select the best answer from the choices provided. a b c d
Answers
Vector contact involves contact with an infected organism. Details about vectors can be found below.
What is a vector?A vector is a carrier of a disease-causing agent or pathogen.
This means that a vector must come in contact with an infected organism to carry the disease-causing organism.
An example is the case of mosquitoes, which carries plasmodium pathogen that causes malaria when it feeds on an infected organism.
Therefore, vector contact involves contact with an infected organism.
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Which shows the correct order of processes for fungi to reproduce sexually? a fungus that is genetically identical to the parent fungus is produced, a spore forms, and hyphae exchange genetic material. a spore forms, a genetically unique fungus is produced, and hyphae exchange genetic material. hyphae exchange genetic material, a spore forms, and the spore grows into a genetically unique fungus. a spore forms, hyphae exchange genetic material, and a fungus that is genetically identical to the parent fungus grows.
Answers
The right order for the fungi to reproduce sexually is:
hyphae exchange genetic material, a spore forms, and the spore grows into a genetically unique fungus.
What is fungus?Any member of the eukaryotic group of organisms, which also includes the more well-known mushrooms and microbes like yeast and mold, is referred to as a fungus.Some of the examples for Fungi are rusts, yeasts, molds, stinkhorns, truffles, mushroomsWhere can you find fungi?Fungi can be incredibly sophisticated multicellular organisms or single-celled critters. They can be found in almost any location, but the majority of them prefer to dwell on land, primarily in soil or on plant matter, as opposed to the sea or fresh water.Reproduction in Fungus:Most fungi have sexual and asexual reproduction abilities.This enables them to adapt to environmental changes. When the environment is stable, they can spread swiftly through asexual reproduction.Asexual reproduction in fungi:fragmentation Hyphae fragments can sprout new colonies. A fungal mycelium fragments as it splits into pieces, with each piece developing into a new mycelium.buddingMost yeasts and some filamentous fungi engage in budding, which is an additional asexual reproduction strategy. This process results in the development of a bud, whose cytoplasm is continuous with that of the parent cell, on the surface of either the yeast cell or the hypha.producing spores.The majority of fungi reproduce by producing spores, which can endure harsh conditions including extreme cold and a lack of water. Depending on the species and environmental factors, asexual and sexual meiotic spores can both be formed during mitosis. A diploid and haploid stage coexist in the majority of fungi's life cycles.Sexual reproduction in fungi:Plasmogamy, karyogamy, and meiosis are the three successive steps of sexual reproduction in fungi.
Plasmogamy:Plasmogamy unites two compatible haploid nuclei by joining two protoplasts, or the contents of two cells.
Karyogamy: These haploid nuclei fuse together during karyogamy to form a diploid nucleus (i.e., a nucleus containing two sets of chromosomes, one from each parent). The zygote is the name for the cell created during karyogamy. In the majority of fungus, the sole diploid cell throughout the whole life cycle is the zygote.Meiosis:Meiosis (reduced division) starts the haploid phase, which generates the gametes, and restores the haploid amount of chromosomes. With the exception of the zygote, all structures in the bulk of fungi are haploid. At the time of zygote formation, nuclear fusion occurs, and meiosis immediately follows.To learn more about sexual reproduction of Fungi visit:
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If your body is capable of making only certain amino acids, how do we get the essential amino acids we need?
Answers
identify X and y in the given flowchart
fast
Answers
Option C is correct.
X - Granulocytes and Y - Agranulocytes
White blood cells, commonly known as leukocytes, are in charge of keeping your body clean. White blood cells circulate in your circulation as part of your immune system and respond to damage or sickness.
White blood cells defend your body against infection. As your white blood cells travel through your circulation and tissues, they detect the presence of an infection and work as an army general, alerting other white blood cells to their position in order to assist defend your body against an unknown organism's onslaught.
When your white blood cell army arrives, it fights the intruder by creating antibody proteins that adhere to and kill the pathogen.
Granulocytes and agranulocytes are two types of WBCs.
Granulocytes
Granulocytes are white blood cells with tiny protein-containing granules. Granulocyte cells are classified into three types:
Basophils: These make up less than 1% of white blood cells in the body and are often found in higher quantities following an allergic reaction.
Eosinophils: These are responsible for reacting to parasitic infections. They also play a function in the body's overall immunological response as well as the inflammatory response.
Neutrophils make up the vast bulk of white blood cells in the body. They function as scavengers, encircling and killing bacteria and fungi that may be present in the body.
Agranulocytes
Lymphocytes
Among these white blood cells are the following:
B lymphocytes: These cells, also known as B-lymphocytes, create antibodies to aid the immune system's response to infection.
T cells, also known as T-lymphocytes, are white blood cells that aid in the recognition and removal of infection-causing cells.
Natural killer cells (NKCs): These cells are in charge of attacking and destroying viral and cancer cells.
Monocytes
Monocytes are white blood cells that account for around 2-8% of the body's total white blood cell population. These are present when the body defends itself against persistent infections.
They hunt down and kill infected cells.
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primers in cellular dna replication are made of ___________. primers in polymerase chain reaction are made of ___________ .
Answers
In cellular DNA replication, the primers are made of RNA, and in polymerase chain reaction, the primers are made of DNA.
What is DNA replication?DNA replication is the process of producing two similar copies of DNA from one original DNA molecule. DNA replication is a biological process that occurs in all living organisms, allowing them to produce offspring that have DNA matching their parents. DNA replication takes place in cells during the cell cycle, the time between cell divisions, as the cells are about to divide.
What is polymerase chain reaction?Polymerase Chain Reaction (PCR) is a technique used in molecular biology to create millions of copies of a specific DNA sequence. PCR is based on three essential steps: denaturation, annealing, and extension. PCR is an efficient and precise way of amplifying a specific DNA sequence from a small amount of DNA or a complex mixture of DNA. It is used in many fields, such as research, forensic science, medical diagnosis, and biotechnology.
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What is the term used to describe a partial shadow
A.umbra
B.penumbra
Answers
Answer:
B. penumbra
Explanation:
umbra is a dark type pokemon and darkness isn't partially a shadow process of elimination
FILL IN THE BLANK. when setting up to make a gta weld on low carbon steel, the tungsten should be __ and the welding machine set for ___.
Answers
When setting up to make a GTA weld on low carbon steel, the tungsten should be sharpened to a point and the welding machine set for alternating current (AC).
GTA welding, also known as gas tungsten arc welding (GTAW), is a welding technique that utilizes an arc between a non-consumable tungsten electrode and the workpiece to generate heat. The weld pool is formed by the heat generated from the arc melting the base metal and the filler metal (if used). The weld area is protected from atmospheric gases by an inert shielding gas, usually argon or helium, which is supplied from a bottle or external source.
The tungsten is sharpened to a point because it will be used as an electrode, which will serve as the arc's cathode. The sharp point of the tungsten electrode allows for a more focused arc, which is essential when welding thin materials or producing intricate welds.The welding machine should be set for alternating current (AC) because DC (direct current) would cause the electrode to become consumed rapidly. The AC current alternates the flow of electricity between the electrode and the workpiece, ensuring that the tungsten electrode stays intact while the arc is in operation.
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2. Which of the following statements is true of persuasive messages?
A. People tune out repetitious messages, so they quickly lose effectiveness.
B. Messages presenting a one-sided argument tend to be more effective than "he said; she said" messages.
C. Messages that offer a remedy for a person's fears tend to be effective.
D. An effective message will reach all audiences, regardless of background.
Answers
Answer:
C. Messages that offer a remedy for a person's fears tend to be effective.
Explanation:
The manner in which the message is presented. Presenting two sides of an argument makes the message seem more believable and persuasive than presenting just one side. Such an approach gives the message a sense of being impartial and factual. *Presenting a fear factor also may persuade people. For example, ads for different kinds of medicines present the dangers lurking around us as they offer a remedy.
Repetition. Repeated exposure to stimuli—like ads—is more likely to have favorable effects on attitudes than infrequent exposure. That’s why companies spend lots of money making sure their ads run again and again and why they have their logos and messages on race cars, buses, and billboards. The more often you see or hear a message, the more likely you are to have a positive attitude toward it.
Messages that offer a remedy for a person's fears tend to be effective is true for persuasive message. Therefore, option (C) is correct.
What is a persuasive message?To persuade someone means to move them emotionally or to motivate them to act in a certain way by presenting them with arguments that convince them to accept your viewpoint or act in the way you want them to. A persuasive message can be either spoken or written and is a form of communication that persuades the reader or listener to behave or act in a particular way.
The first step in convincing someone is to motivate them. If persuasion is a process, and the action of your audience (such as purchasing a product or service) is the goal, then motivating them to accept an argument or a series of positions leading to the decision that you want them to adopt is one way to help achieve that goal. If you want them to buy a product or service, for example, this would be an action.
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explain how facilitated diffusion assists in osmosis in cells
Answers
Answer:
Facilitated diffusion is diffusion using carrier or channel proteins in the cell membrane that assist in the movement of molecules across a concentration gradient. The third type of movement is known as osmosis, or the movement of water to equalize solute concentration.
I'll give you a brainliest if is right or at least shows some effort
(thanks & i hope your having a good day)
In your own words, explain how stalagmites are formed in caves.
Answers
Explanation:
As the redeposited minerals build up after countless water drops, a stalactite is formed. If the water that drops to the floor of the cave still has some dissolved calcite in it, it can deposit more dissolved calcite there, forming a stalagmite. Speleothems form at varying rates as calcite crystals build up.An organism that has one dominant allele and one recessive allele for a trait is referred to as being ________________ for that trait.
Answers
Answer:
Heterozygous
Explanation:
Hetero is derived from the root meaning 2 different. Since the organism has 2 different alleles for the trait, it is heterozygous.
What do theories hypothesize about the conditions of Earth's early atmosphere?
•Little to no oxygen
• Low levels of ultraviolet radiation
•Protective atmosphere
•Very cold temperature
Answers
According to speculations, there was little to no oxygen in the early Earth's atmosphere. The right answer is A.
What is the atmosphere?The term "atmosphere" refers to a layer (or layers) of gases that surround a planet and are held in place by gravity. When the gravity is strong and the temperature is low, a planet's atmosphere is preserved.Five layers make up the atmosphere. These include the lithosphere, exosphere, thermosphere, mesosphere, and stratosphere. Different levels of the atmosphere have various temperatures and gas kinds.According to the earlier notion, oxygen wasn't present in the atmosphere back then. That is why there wasn't any life present, assuming any small organisms existed.Therefore, the appropriate response is A. little to no oxygen.To Learn more About atmosphere refer To:
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Which of the following is an abiotic factor or an ecosystem? select one: a. minerals in the soil b. microorganisms in the soil c. vertebrates in a stream d. all of the above
Answers
Abiotic factors are essential for the functioning and survival of organisms within the ecosystem. The abiotic factor in an ecosystem among the given options is (a) minerals in the soil.
Abiotic factors are non-living components of an ecosystem that influence the organisms living within it. They include physical and chemical factors such as temperature, sunlight, water availability, soil composition, and minerals. In this case, minerals in the soil are abiotic factors because they are non-living components that directly impact the ecosystem.
Microorganisms in the soil and vertebrates in a stream, on the other hand, are biotic factors. Biotic factors refer to the living organisms within an ecosystem, including plants, animals, fungi, and microorganisms. Microorganisms in the soil contribute to nutrient cycling and decomposition processes, while vertebrates in a stream are living organisms that interact with other biotic components of the ecosystem.
Therefore, the correct answer is a. minerals in the soil, as it represents an abiotic factor within an ecosystem.
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Carla is using a fertilizer that contains nitric acid. How is nitric acid classified?
O strong acid
O weak acid
O strong base
O weak base
Answers
Answer:
strong acid
Explanation:
i just got it right on edu 2020
O
/ l \
l
_ / \_
Carla is using a fertilizer that contains nitric acid, which is classified as strong acid. The correct option is A.
What is a strong acid?Strong acids dissociate completely or nearly completely in water, whereas weak acids dissociate only partially when dissolved in water.
An acid or base that conducts electricity strongly contains a large number of ions and is referred to as a strong acid or base, whereas an acid or base that conducts electricity only weakly contains only a few ions and is referred to as a weak acid or base.
When dissolved in water, an equilibrium between the concentrations of the weak acid and its constituent ions is established. The following are some common examples of weak acids.
Hydrochloric acid, nitric acid, sulfuric acid, hydrobromic acid, hydroiodic acid, perchloric acid, and chloric acid are examples of strong acids.
Thus, the correct option is A.
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