Most people's height is determined primarily by a combination of genetic variants with modest effects on height, as well as a smaller contribution from environmental factors (such as nutrition).
More than 700 such gene variants have been identified, with many more expected. Human characteristics such as height, eye color, and hair color vary slightly because they are controlled by many genes, each of which contributes a small amount to the overall phenotype. Height, skin color, and eye color are three examples of polygenic traits in humans. Multiple genes control these characteristics. Polygenic traits do not follow Mendel's pattern of inheritance because multiple genes are involved.
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A student placed two samples of tissue in pure water. One was an animal sample, and the second was plant tissue.
What are the results the student will have after 48 hours have passed?
When placed in a solution with a high concentration of water relative to its contents such as pure water red blood cells absorb water by osmosis swelling and rupture. Water diffuses from a high extracellular water concentration to a low intracellular water concentration.
The cell contents cytoplasm and vacuoles press against the cell wall, causing the cell to swell. Fully swollen cells support the non-lignified plant stem. In more concentrated solutions with low water potential, the cell contents lose water by osmosis. They contract and move away from the cell wall.
There is no net movement of the water when cells are held in an isotonic solution with the same water concentration as the cells. So the correct answer is option A. When the solution moves from the outside to the inside this is called osmosis. Cell rupture can occur due to excess water inside the cell. It acquires water by osmosis and swells until the cytoplasm and cell membrane are pressed against the cell wall. they should be swollen.
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Select all of the following that are components of DNA. (Check all that apply.)
GIVING BRAINIEST FOR CORRECT ANSWER
In which two ways do plant cells use the sugar made in photosynthesis ?
• to produce phosphate groups
• to store inorganic matter
• to supply the plant with energy for life
• to make other types of organic molecules
Answer:
To make more complex sugar molecules
To store energy for life processes.
What would the alleles be for the following organism?
A pea plant is homozygous dominant for yellow seeds (Y).
YY
Yy
yy
None of the above
Answer:
YY
Explanation:
Homozygous Dominant means that there are two identical dominant alleles (YY). Therefore, if one of the given alleles is dominant (Y), then for homozygous, both will be dominant (YY).
A) YY is your answer.
If it is heterozygous, then it will have alleles of (Yy) or (yY). If it is homozygous recessive, then the alleles will be (yy).
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What is the difference between a single and double circulatory system?
Answer:
︎︎ What is the difference between a single and double circulatory systems ?➪Single circulation The type of circulatory system that occurs in fishes, in which the blood passes only once through the heart in each complete circuit of the body Compare double circulation.➪Double circulation (double circulatory systems) are circulation systems in which blood flows through the heart twice.➪In the case of double circulation, pulmonary circulation - i.e. blood flow between the heart and lungs, is separate from systemic circulation - i.e. movement of blood from the heart through the rest of the body (excluding the lungs), then back to the heart.Difference ☟︎︎︎ ➪During one complete cycle of flow through the whole body (blood system), blood in a double circulatory system passes through the heart twice.Another way to say this is the blood passes through the heart twice during each cycle of the circulatory process.➪In a double circulatory system there are two circuits for blood passing through the heart:Pulmonary CirculationDeoxygenated blood is pumped from the heart to the lungs, oxygenated blood returns to the heart from the lungs.Systemic Circulation.Explanation:
︎︎︎In short :-➪The key difference between single and double circulation is that in single circulation, blood travels once through the heart during a complete cycle, while in double circulation, blood flows twice through the heart during a complete cycle.
Uranus' rings__
A -Circle the planet's poles
B-Are visible from Earth with a telescope
C-Are almost vertical
D -All of the above
Answer:
D
Explanation:
Uranus is known as the "planet on its side" because unlike Saturn, its rings are vertical. Because the planet itself is not actually tipped, the rings circle around its north and south pole. We know this because we have been able to see them ourselves through telescopes here on Earth. This covers all of the answer choices, so the answer is all of the above.
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What type of cell transport allows neurons in the nervous system to communicate and what mechanisms (including organelles) are involved in transmitting electrochemical signals between neurons?
PLSSSSS HELPPPP MEEEEE
Answer:
En general, el transporte celular se divide en dos tipos: pasivo y activo. El transporte pasivo significa simplemente que no se usa nada de la energía de la célula; el transporte activo, en contraste, requiere el uso de la energía celular
Usually during axial muscle contraction, the more moveable muscle attachment, the ______ attachment is pulled toward the less moveable muscle attachment.
Every skeletal muscle in the human body is connected to a bone or other connective tissue structure, and each one crosses at least one joint. Typically, we describe muscle attachments by identifying their origin and insertion point.
The origin is the point at which the muscle attaches to an immovable or less movable bone - the point at which the muscle is anchored to the bone. The insertion is the point at which the muscle attaches to the movable bone. When a muscle contracts, the insertion is typically pulled towards the origin, resulting in movement.
Some muscles cross more than two joints, making their action more complicated. Depending on the action, other muscles have interchangeable origins and insertions. As a result, it is critical to consider the type of movement a muscle can perform when describing it.
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Answer: superior
Explanation:
The diploid chromosome number in standard laboratory mice is 40. What is n for this organism?.
There are 40 diploid chromosomes under ordinary laboratory conditions, hence the haploid number is equal to half of the diploid number. As a result, the diploid number is 2 n = 40.
Which of these cells has a diploid 2n genome?A pair of nonhomologous sex chromosomes and two sets of 22 homologous chromosomes make up the 46 chromosomes found in human somatic cells. The 2n, or diploid, state, is this.
A single cell eventually divides into two daughter cells, each of which has the same amount of genome as the mother (initial) cell. As a result, when mitosis begins, a cell with 40 chromosomes will give rise to daughter cells with 40 chromosomes.
Genetic information is transported from cell to cell in a structure like a thread made of protein and a single DNA molecule. The diploid state is indicated by the word 2n. The presence of two sets of chromosomes in the cell is indicated.
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therapeutic cloning can multiple choice produce embryonic stem cells. produce clones of adult individuals. produce specialized cells to treat human disease. be used to produce superior farm animals. be used to create new species of plants.
Therapeutic cloning can produce specialized cells to treat human disease.
The transfer of nuclear material isolated from a somatic cell into an enucleated oocyte with the goal of producing embryonic cell lines with the same genome as the nuclear donor is known as therapeutic cloning.
Dolly the sheep is probably the best-known example. An embryo is created in a similar manner in therapeutic cloning, but the resulting "cloned" cells are kept in a dish in the lab rather than implanted into a female's uterus.
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In which of these models do
the particles have the LEAST
amount of energy?
A. Model A (a solid)
B. Model C (a gas)
C. Model B (a liquid)
Answer:
A
Explanation:
☐ What is one way that cancer cells are physically different than normal cells?
If each dose of growth product increases the height of the organism, how many phenotypes for height could exist in the population?.
Scientists estimate that 80 percent of a person's height is determined by the DNA sequence variations that they inherit.
Human height is a composite phenotype of the sum of head, trunk, and leg lengths. Almost 10,000 common gene variants influence how tall a person becomes. For height, DNA is largely a destiny. Studies of identical and fraternal twins suggest that up to 80% of variation in height is completely genetic.
In genetics, phenotype is the set of observable traits of an organism. This includes organism's physical form and structure, developmental processes and its behavior
Although there is a range of phenotypes, but offspring are similar in color to the parents. If we assume n = the number of gene pairs, then (2n + 1) determine the total number of categories of phenotypes.
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Hemoglobin is the protein found in ______ blood cells that transports ______ throughout the circulatory system.
Hemoglobin is the protein found in the RED BLOOD CELLS that transports OXYGEN throughout the circulatory system.
Where does the oxygen that the red blood cell carries go?The main cells in the blood that circulates throughout the body are red blood cells. The primary function of red blood cells is to transport oxygen from the lungs to the rest of the body's organs.Hemoglobin is the primary protein in red blood cells that binds to and transports oxygen.Red blood cells move in single file through slender capillaries. The hemoglobin molecules in red blood cells absorb and transport oxygen. These oxygen-rich cells travel from the lungs to the heart's left side via the blood arteries. Pumps are then used to circulate the body.Red blood cells have the shape of a flat disk or doughnut that is spherical with an indentation in the middle but is not hollow.To know more about hemoglobin, refer:
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What type of cellular structure must be involved in the translation of viral proteins and enzymes?.
The translation of viral proteins and enzymes requires structural viral proteins.
What exactly are viral proteins?
There are two types of viral proteins, structural and nonstructural. There are two types of viral proteins: structural proteins, which aid in the translation of viral proteins, and non-structural proteins, which act as enzymes in viral genome replication.
The virus initiates the processes of replication and translation after it has entered the host cell. Transcription, the process by which DNA is converted into mRNA, requires that first DNA be replicated. The translation process begins when messenger RNA (mRNA) combines with ribosomes. During infection, several RNA viruses produce messenger RNA (mRNA), which can be used to convert the virus's DNA into proteins. Through the processes of transcription and translation, viruses containing a negative strand of RNA or DNA can be produced.
Hence, the virus needs structural viral protein for translation.
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first, drag the labels of group 1 to their respective targets to identify the steps of the calvin cycle. then drag the labels of group 2 to their respective targets to identify the molecules involved in the cycle. labels of group 2 can be used more than once.
The Calvin cycle involves four stages: Carbon fixation (CO₂ enters the cycle and produce 3-C molecules) Reduction (NADPH and ATP are reduced. Electrons are used to produce G3P) Regeneration (RuBP is regenerated) Release (G3P is released to the cytosol). Image attached.
What are the stages of the Calvin cycle?The Calvin cycle is composed of four main stages.
Carbon fixationReductionRegenerationRelease1) During the carbon fixation phase, the CO₂ molecule combinates with a ribulose-1,5-bisphosphate (5-C molecule) to form 6-C molecules, which will divide into two 3-phosphoglycerate molecules, 3-PGA (3-C molecules).
CO₂ + ribulose-1,5-bisphosphate ⟶ 6-C molecule ⟶ 2 3-PGA
2) During the reduction phase, ATP and NADPH are used to produce the sugar molecule glyceraldehyde-3-phosphate (G3P) from 3-PGA molecules.
NADPH donates its electrons to turn 3-PGA into glyceraldehyde 3-phosphate, G3P.
3-PGA + ATP + NADPH ⟶ G3P + ADP + NADP⁺
3) During the release phase, some glyceraldehyde 3-phosphate molecules leave the cycle and go to the cytosol to form glucose and fructose.
4) Finally, during the regeneration phase,
Some G3P gets recycled to regenerate the RuBP acceptor. This last reaction needs ATP and a series of other reactions.
When three CO₂ enter the cycle, 6 G3P are produced. One of them leaves the cycle, and the remaining five are recycled and generate three RuBP.
In the attached files, you will find the complete image with labels from group 1 and 2 identifying the steps and the molecules, respectively.
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Describe a problem with the Eurasian Beaver ecosystem, most likely from a human impact.
Explain how scientists have attempted to solve the Eurasian Beaver issue
Evaluate their solution by providing 2-3 pros and cons. Think about the different groups of people that are affected by the solution
A problem that is common with the Eurasian Beaver ecosystem, most likely from a human impact is the hunting of men that made them to come to a near-extinction.
Explain how scientists have attempted to solve the Eurasian Beaver issue?Note that Beavers are said to be threatened in terms of habitat loss as well as conflict with humans. If a person is residence inside of the beaver habitat, it is advisable to proven coexistence techniques such as:
Lower pesticide use.Channel runoff into waterways as well as wetlands.The pros are:
Better habitat.Encourage more birth of Beavers.The cons are:
Lost of habitat.Extinction of Beavers.Therefore, as a keystone species that supports the ecology it lives in is the Eurasian beaver. It produces wetlands that serve as homes for animals including the European water vole, the Asian otter, as well as the Asian water shrew.
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A population of wolves is reintroduced into Yellowstone National Park. For the first decade, the wolf population grows exponentially. Then, the population growth slows. The new pattern is known as,.
limiting factors.
logistic growth.
exponential growth.
carrying capacity.
Answer:
logistic growth.
Some snakes have a pelvis and femurs, bones used for walking, although they no longer need them. What term best describes this situation?
Answer:
Vestigial organs or vestigial structures
Explanation:
Vestigial organs or vestigial structures are organs, tissues or cells in a body which are no more functional but their structural remains still exist in the body. They are evidence of evolution in a specie.
Please Help!
1. Name any two of the major types of chemical substances that are broken down in chemical digestion. For each substance, name an enzyme that breaks them down and what final product is actually absorbed by the body for use or storage.
2. Why does the GI tract have a plexus in the muscalaris and nerves in the mucosa? What physiological functions of the tract are supported by these anatomical structures? Think about your answer in the context of Hirschsprung’s disease, a congenital disorder of the colon that involves a defect in the myenteric plexus. What symptom or problem do you imagine the disease would cause?
Explanation:
let me attempt to answer your questions.
1. a.Carbohydrates. They are broken down by several enzymes; ptyalin converts cooked starch to maltose and maltase converts maltose to glucose,which is used by the body cells to produce energy in the form of ATP and it's excess is stored as glycogen in the liver
b. Proteins. Pepsin converts proteins to peptides,rennin converts caseinogen to casein. Trypsin also converts proteins to peptides. Erepsin converts peptides to amino acids which are used by the body. Proteins also yield energy for the body ie. 4kcal per gram
2. The GI tract has a plexus in the muscularis so that there can be a localized control of gastrointestinal motility ie. the myenteric plexus of the muscularis alongside the Meissner plexus of the submucosa form the enteric nervous system. This is to say that the physiological function supported by these anatomical features is gastrointestinal motility. Hirschsprung disease or megacolon causes low GI motility
The locations for three genes have been added to this cartoon. For clarity, the locations have only been noted on one chromatid. The lowest frequency of crossovers would occur between genes ____ and ____.
The locations for three genes have been added to this cartoon. For clarity, the locations have only been noted on one chromatid. The lowest frequency of crossovers would occur between genes a and b.
What are chromatids?
A chromatid is known as one of the two identical halves of a chromosome that has been replicated in preparation for cell division. There are normally two “sister” chromatids which are joined at a constricted region of the chromosome called the centromere but during the anaphase stage of a cell division, They get torn apart and they are distributed among the cytoplasm of each daughter cell.
A vast quantity of DNA that is arranged physically into a single structure is called a "chromosome." Because of this, the "sister chromatids" are regarded as being separate chromosomes even though they are joined together. Each chromatid is thought to be its own chromosome once they are divided during anaphase.
The cartoon picture is attached.
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The ________ lobes are responsible for voluntary movement, thinking, personality, and purposeful actions.
The Frontal lobes are responsible for voluntary movement, thinking, personality, and purposeful action.
The frontal lobes are the largest lobes in human brain and also the most common region of injury in traumatic brain injury. They are important for voluntary movement, expressive language and for managing higher level functions.
Overall, frontal lobe is responsible for higher cognitive functions such as memory, emotions, impulse control, problem solving and social interaction. Damage to the tissues of the frontal lobe can cause personality changes and difficulty in concentrating.
If it is damaged, there might be no mechanism of braking for self-control. A person may find it difficult to control his/her anger or aggression.
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Using this phospholipid bilayer cross-section diagram as a reference, which
letter best represents an integral protein that spans the membrane?
A
B
C
D
E
F
G
A phospholipid bilayer—two phospholipid layers with the tails pointing inward—is typically seen in biological membranes. In this phospholipid bilayer cross-sectional graphic, A stands for the phospholipid unit. hydrophilic head (A1) and hydrophobic tail (A2) C is Glycopro.
What are the phospholipid bilayer's two components?
The phospholipid bilayer is made up of two phospholipid layers: an internal layer that repels water and an outside layer that attracts it. The single phospholipid molecule shows the hydrophilic (polar) head group and hydrophobic tails (fatty acid chains). Two sheets of phospholipid molecules, each with all of its molecules aligned in the same direction, make up a bilayer. The phospholipids of the two sheets align in an aqueous medium.To learn more about Phospholipid refer to:
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If fertilisation has not taken place, the lining of the uterus breaks down. What is the name given to this process?
Answer:
Menses, menstruation, period, cycle whatever you want to call it
Explanation:
Compared to the tropical rainforests, the temperate rainforests generally have __________. a. less biomass b. more biomass c. more broad-leaf trees d. locations near the equator please select the best answer from the choices provided a b c d
Compared to the tropical rainforests, the temperate rainforests generally have more broad-leaf trees.
In general, temperate rainforests have more broad-leaf trees than tropical rainforests do. It is as a result of the rainforest's significantly lower average temperature as compared to tropical rainforests.
In order to create distinct layers of vegetation, groups of plants with identical size and life form are referred to as synechiae. Synechiae can be found in greater numbers in tropical rainforests than in other types of ecosystems. They comprise both mechanically dependent synechiae, such as climbers, stranglers, epiphytes, and parasitic plants, as well as mechanically independent species, whose stems are self-supporting. The tropical rainforest contains a unique assortment of different-sized trees, and these trees create numerous canopies beneath the top layer, albeit they are not usually easily distinguishable as distinct layers.
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What is the advantage of traveling in a herd for the gazelles?
Answer:
Protect each other from predators.
Explanation:
Locard's exchange principle implies all of the following except
blood spatter can be used to identify blood type
animal hair can transfer from an animal to your pants
soil from the yard can enter your home on your shoes
fibers from one person can attach to other people's clothes
The Locard's exchange principle implies all of the following except option A: blood spatter can be used to identify blood type.
What is implied by the exchange principle of Locard?Every interaction leaves a trace is a thesis put out by French forensic science pioneer Edmond Locard. The foundation of all forensic science as we know it today is this idea, which became known as Locard's exchange principle.
Therefore, Locard's Exchange Principle, which essentially states that in the commission of a crime, the offender leaves something at the crime scene and takes away something from the crime scene, is one of the guiding notions in classic, CSI-style forensics.
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Answer:
(A) blood spatter can be used to identify blood type
Explanation:
Got it right on my quiz
Which of the following best describes the
difference in cytokinesis between animal
and plant cells?
Plant cells form a cleavage furrow and Animal
cells form a cell plate.
Plant cells split using the formation of a cell
plate, made up of vesicles, whereas animal
cells form a cleavage furrow as the cell
membrane is drawn inward.
Answer: Plant cells develop a cell plate while animal cells develop a cleavage furrow.
Explanation:
Please help I need to turn it please
Two birds collide in midair. Before the collision, their combined momentum
was 35 kg-m/s to the east. What is their combined momentum after the
collision?
A. 35 kg-m/s west
B. 35 kg-m/s down
C. 35 kg-m/s north
D. 35 kg-m/s east
D. 35 kg-m/s east is their combined momentum after the collision
Momentum after a collision is it zero?Momentum is preserved when two objects collide. The ultimate momentum is not zero since the beginning momentum is not. They can't both be at ease. One of the objects may be at rest following the impact.
Consequently, the system's overall momentum will be preserved because it was constant before and after the impact.
Collisions between two objects naturally fall under Newton's third rule of motion. When two objects collide, forces of equal magnitude and opposing direction are applied to each item. Such pressures frequently result in one thing gaining momentum and gaining speed while the other object slows down (lose momentum).
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