Seastars are genetically different from each other and from their parents. This genetic differences are the result of In mitosis, the products are identical to the parent cell, while in meiosis the products are different from the parent cell.
The study of genes, genetic diversity, and heredity in organisms is known as genetics. It is a significant field of biology since heredity is essential to the evolution of organisms. Gregor Mendel, a Moravian Augustinian monk working in Brno in the nineteenth century, was the first to do scientific research on genetics.
Mendel investigated "trait inheritance," which is the pattern of how traits are passed down from parents to children over time. He noticed that organisms (pea plants) receive features by way of distinct "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene.
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Manatees are legally protected by
Answer:
The Marine Mammal Protection Act of 1972, the Endangered Species Act of 1973, and the Florida Manatee Sanctuary Act of 1978. It is illegal to feed, harass, harm, pursue, hunt, shoot, wound, or annoy manatees.
Explanation:
Where is starch stored in plants?
Answer: chloroplasts
Explanation:
What is a deletion in psychology?
Deletion is the loss of genetic material. It can be a gene's loss of several DNA base pairs or an entire chromosomal region.
Two breaks and the removal of an intermediate segment are required for deletion. This loss of genetic material or deleted region is not preserved in daughter cells because they lack a centromere.
There are three types of deletion:1. Terminal Deletion → a type of deletion that occurs near the end of a chromosome.
2. Intercalary Deletion → a type of deletion that occurs from the inside of a chromosome.
3. Microdeletion → is a small amount of deletion
The effect of deletionAn illnesses or abnormality may arise as a consequence of the deletion of a gene or a portion of a gene.
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A light ray is striking the surface of earth. Which factor would make the light ray more likely to be absorbed than reflected?.
The factor that would make the light ray more likely to be absorbed than reflected is smooth surfaces.
The smoothness of a surface is a factor that can affect the amount of light that is reflected versus absorbed. A smooth surface has a lower surface area and is less likely to scatter light in many directions, which means it is more likely to reflect light. On the other hand, a rough surface has a higher surface area and scatters light in many directions, which means it is more likely to absorb light.
A. light colors do not affect the amount of light that is reflected or absorbed. Light colors are the result of light being reflected or absorbed by a surface, not the cause of it.
C. the winter season does not affect the amount of light that is reflected or absorbed. The amount of light that is reflected or absorbed depends on the properties of the surface, not the season.
D. the high angle of the Sun can affect the amount of light that is reflected or absorbed. When the sun is high in the sky, the light that strikes the surface is more likely to be reflected than absorbed, because it is hitting the surface at a more perpendicular angle. However, this factor alone is not the only one that determines the amount of light that is reflected or absorbed.
The complete question is:-
A light ray is striking the surface of Earth. Which factor would make the light ray more likely to be absorbed than reflected? light colors smooth surfaces the winter season the high angle of the Sun
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Chlorophyll is essential to photosynthesis because it traps the _______ needed.
Answer:Chlorophyll is essential to photosynthesis because it traps the SUNLIGHT needed. so your answer is Sunlight
Explanation:
Why do chromosomes form during mitosis
Answer: so they can copy.
Explanation:
During mitosis, chromosomes reorganise into compact cylindrical bodies so that the spindle can distribute one copy of the genome to each daughter cell
in plant cells this step requires the formation of a cell plate
In terrestrial plants, cell plate formation occurs during cytokinesis.
Cytokinesis is the transport of Golgi-derived and endosomal vesicles containing cell wall and cell membrane components to the plane of cell division, followed by fusing of these vesicles within this plate.
Plant cells experiencing cytokinesis (cytoplasmic division) produce a cell plate in the phragmoplast's center. The phragmoplast is made up of both cytoskeletal and membranous components.
Golgi vesicles in plant cells congregate near the old metaphase plate to create a phragmoplast. A cell plate generated by the fusing of the phragmoplast vesicles expands from the center toward the cell walls, and the vesicle membranes fuse to form a plasma membrane that splits the cell in two.
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if you have a larger cube made up of smaller cubes that is 10cubes*10cubes*10cubes, how many cubes make up the surface of the larger cube?
600 cubes make up the surface of the larger cube.
This can be calculated by multiplying the height, width, and length of the cube together and subtracting two. For example, 10 x 10 x 10 = 1000. 1000 - 2 = 998. 998/2 = 499. 600 cubes make up the surface of the larger cube.
The calculation is based on the formula: Surface area = (2 x length x width) + (2 x length x height) + (2 x width x height). In this case, the length, width and height are all 10. This formula can be written as 2 x 10 x 10 + 2 x 10 x 10 + 2 x 10 x 10 = 600.
To confirm this answer, the volume of the cube can also be calculated by multiplying the length, width, and height together. In this case, 10 x 10 x 10 = 1000 cubes. If two cubes are subtracted from this number, 600 cubes remain, which is the surface area of the larger cube.
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What are the two main functions of polysaccharides?
Polysaccharides' primary tasks include energy storage and structural support.
Polysaccharides are important types of biomolecules. They are lengthy chains of carbohydrate molecules made up of several smaller monosaccharides. These intricate bio-macromolecules serve as a major energy source in animal cells and as a structural component in plant cells. Depending on the kind of monosaccharide, it might be a homopolysaccharide or even a heteropolysaccharide. Polysaccharides can be either a straight chain of monosaccharides referred to as linear polysaccharides or a branched polysaccharide. Polysaccharides serve as energy storage in organisms. Water cannot enter the molecules due to the existence of numerous hydrogen bonds, making them hydrophobic.
They allow for variations in the concentration gradient, which regulates food and water intake by cells. Many polysaccharides generate glycolipids and glycoproteins by covalently bonding with lipids and proteins. These glycolipids & glycoproteins are utilized to communicate or transfer signals between cells. They offer assistance to the cells. Plant cell walls are comprised of polysaccharide cellulose, that gives support to the plant's cell wall. Chitin is a very important component of the extracellular matrix that surrounds cells in insects and fungus.
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considering that not everyone who can taste ptc tastes it the same way, what does this tell you about classic dominant/recessive inheritance?
This tells us that the trait of being able to taste PTC is likely a polygenic trait, meaning that it is not controlled by a single gene with two alleles (dominant and recessive) but by multiple genes, each with multiple different alleles. It is possible that certain alleles are more common than others, but this does not necessarily mean that they are dominant or recessive.
The classic model of dominant/recessive inheritance relies on the assumption that a trait is determined by a single gene with two alleles, one of which is dominant and one of which is recessive. However, in the case of the ability to taste PTC, it is clear that this trait is not determined by a single gene with two alleles. In fact, it is likely determined by multiple genes, each with multiple different alleles.
This means that it is not possible to determine which alleles are dominant or recessive, as it is likely that different combinations of alleles can result in the ability to taste PTC. Therefore, the classic model of dominant/recessive inheritance does not apply to the ability to taste PTC.
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Scientists are studying cell-to-cell communication in a human spleen. How would scientists most likely use technology during this study?.
Scientists are studying cell-to-cell communication in a human spleen. To predict what triggers cells-to-cell communication. As a part of the mononuclear phagocyte system, it degrades hemoglobin that has been removed from senescent red blood cells.
An almost universal organ in animals is the spleen. It looks like a large lymph node and performs largely as a blood filter. An essential organ for the immune system and red blood cells is the spleen (erythrocytes). Iron is recycled while old red blood cells are discarded and a blood reserve is kept that may be helpful in the event of hemorrhagic shock. While the globin portion of hemoglobin is broken down to its individual amino acids, the heme portion is transformed into bilirubin, which is expelled in the liver.
The complete question is:
Scientists are studying cell-to-cell communication in a human spleen. How would scientists most likely use technology during this study?
a) To draw a diagram showing how cellular communication occurs
b) To predict what triggers cells-to-cell communication
c) To determine safety procedures to be used in the laboratory
d) To determine the number of visible cells by counting them
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Where does the energy come from that is used to attach a 3rd phosphate to adp?
The energy for the attachment of a third phosphate to ADP comes from a process called oxidative phosphorylation.
This is a process in which energy stored in food molecules is harnessed to produce ATP, the energy currency of the cell. Oxidative phosphorylation takes place in the mitochondria, the powerhouses of the cell, and involves the electron transport chain, a series of reactions in which electrons are passed down a series of molecules to ultimately drive the production of ATP.
At the end of the chain, the electrons are used to reduce oxygen to form water, releasing the energy used to drive the ATP synthesis. Using this energy, a third phosphate is added to ADP to create ATP.
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Select the correct answer.
Which city on the map above is most likely to experience a cold front pass through it in the next few days?
The city on the map above that is most likely to experience a cold front pass through it in the next few days is New York.
What is a cold front ?A cold front is described as the leading edge of a cooler mass of air at ground level that replaces a warmer mass of air and lies within a pronounced surface trough of low pressure.
Temperature differences across the boundary can exceed 30 °C from one side to the other and if enough moisture is present, rain can occur along the boundary.
It is a known fact that when a cold front passes through, temperatures can drop more than 15 degrees within the first hour.
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What is the role of vitamin D in bone development?
The role of vitamin D in bone development is to make bones strong.
Vitamin D is essential for the development of healthy bones and muscles. Our bodies are unable to effectively absorb calcium, which is necessary for maintaining excellent bone health, in the absence of vitamin D. A disorder known as rickets can develop in children who do not receive enough vitamin D. Rickets is characterized by brittle bones, bowed legs, and other skeletal malformations, such as stooped posture.
It is a fat-soluble vitamin that has been recognized for a long time to assist the body in the absorption and storage of calcium and phosphorus, both of which are essential for the formation of bone. Studies conducted in laboratories have shown that vitamin D can inhibit the growth of cancer cells, assist in the management of infections, and reduce inflammation.
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subarachnoid hemorrhage is usually managed with volume expansion and blood pressure support to enhance cerebral perfusion. this is necessary because subarachnoid hemorrhage predisposes to
This is necessary because subarachnoid hemorrhage predisposes to cerebral vasospasm.
You may need surgery to treat the subarachnoid hemorrhage and its cause: If the SAH is the result of an injury, remove large blood collections or alleviate pressure on your brain. If the SAH is caused by a ruptured aneurysm, repair it.
The most common cause of a subarachnoid hemorrhage is a ruptured brain aneurysm, a blood vessel in the brain that bursts. A vasospasm occurs when a blood vessel in the brain narrows and prevents blood flow. It can occur two weeks after a brain aneurysm or subarachnoid hemorrhage. If you have recently had a subarachnoid hemorrhage or a ruptured brain aneurysm, you are more likely to have cerebral vasospasm.
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pseudostratified ciliated columnar epithelium location in ___
The respiratory tract (such as the trachea and bronchi) and the reproductive tract (such as the vas deferens and uterus).
What is pseudostratified ciliated columnar epithelium?Pseudostratified ciliated columnar epithelium is a type of epithelial tissue that is composed of cells that are arranged in a single layer. Despite appearing to be layered, all of the cells in this type of tissue make contact with the basement membrane.
The cilia on the surface of the cells help to move mucus and other particles along the surface of the tissue. It is found in the respiratory tract and reproductive tract, where it helps to protect against infection and aid in the transport of mucus and other materials.
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What is the food sources of Vitamins and Minerals?
fruits and vegetables, whole grains, beans and legumes, low-fat protein, and dairy products contain rich amount of Vitamins and Minerals.
To receive a variety of vitamins and minerals, try eating a variety of meals. Fruits and vegetables are examples of foods that are nutrient-rich by nature. A high nutrient content can also be found in lean meats, seafood, whole grains, dairy products, legumes, nuts, and seeds. You might not consume all the micronutrients your body requires. Foods with a high calorie count but little micronutrients are typically consumed in America. Such a diet makes you gain weight. Consuming whole grains reduces fat intake. Additionally, they include a lot of complex carbs and fibre. As a result, you will feel fuller for longer and won't overeat. The natural low fat content of fruits and vegetables. Your diet is enhanced by them with minerals, flavour, and variety. Take note of the orange and dark green fruits and vegetables in particular.
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How do meteoroids and asteroids compare?
Answer:
Asteroids are smaller than most planets, but are bigger than meteroids.
Explanation:
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what body cavities are located inferior to the diaphragm
Abdominal hollow space–the distance occupied with the aid of using the ventral inner organs not as good as the diaphragm and advanced to the pelvic hollow space. Ventral.
The ventral hollow space, the indoors area withinside the the front of the body, includes many distinct organ systems. The organs withinside the ventral hollow space also are referred to as viscera. The ventral hollow space has anterior and posterior quantities divided with the aid of using the diaphragm, a sheet of skeletal muscle discovered under the lungs. The abdominopelvic hollow space is the inferior part of the ventral hollow space placed beneath the diaphragm, as highlighted in pink beneath. As the call suggests, the abdominopelvic hollow space is withinside the stomach and pelvis and includes each the stomach hollow space and pelvic hollow space.
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Which of the following sequences for the processing of proteins produced within the cell is correct? Multiple Choice
Proteins are broken into fragments, transported to the rough endoplasmic reticulum, fuse with a Golgi vesicle containing close-MHCs, and this complex is transported to the plasma membrane.
Proteins are broken into fragments within a vesicle, which fuses with a Golgi vesicle containing class. MHCS, and this complex is transported to the plasma membrane.
Proteins are broken into fragments within a vesicle, which uses with a Golgi vesiclo containing class MHCs, and this complex is transported to the plasma membrane.
Proteins are broken into fragments, transported to the rough endoplasmic reticulum combined with class MHCmove to the Golg! apparatus, then to the plasma membrane.
Endoplasmic Reticulum----Class II MHC----Vesicles of Golgi Apparatus -----Plasma Membrane.
So Option D is Correct.
Protein Synthesis or Translation takes place in the Ribosomes also known as the protein factory of cells. Then it is transported through Rough Endoplasmic Reticulum from there targeted to vesicles with Class I MHC molecules to Golgi Apparatus and then Tethered to Plasma Membrane where it carry out Exocytosis or release or secretion of these proteins. Class I MHC or Major Histocompatibility complex is associated with Self Antigens or Proteins produced within the cell.
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Dye injected into a plant cell might be able to enter an adjacent cell through plasmodesma, unique to plant cells.
Dye injected into plant cell might be able to enter the adjacent cell through plasmodesmata, unique to plant cells.
What are plasmodesmata?Plasmodesmata are small channels through cell walls connecting adjacent plant cells and are very important for exchange of signaling molecules (juxtracrine signaling), proteins, nutrients etc. Smaller molecules and ions can easily pass through plasmodesmata by diffusion without the need of additional chemical energy.
Plasmodesmata are cytoplasmic bridges between the adjacent plant cells which develop in minute pores of the walls. They form protoplasmic continuum called symplast and it provides channels for the controlled passage of small-sized particles between the adjacent cells and as well as transfer of some specific signals.
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Which polysaccharide is used for structure in the cell wall?
Answer:
The answer would be Cellulose
What is a phase in genetics?
To provide a complete picture of genetic variation, phasing entails dividing the maternally and paternally inherited copies of each chromosome into haplotypes is a phase in genetics.
In genetics, the initial allelic combinations that a diploid individual gets from both parents are referred to as a gametic phase. Therefore, it is a specific combination of alleles at various loci on the same chromosome. Genetic linkage affects the gametic phase.
Disequilibrium in the Game is the occurrence of haplotypes (gametes) with a frequency more or less than the sum of the frequencies of the two relevant alleles at any two loci.
Haplotype estimation in genetics commonly referred to as "phasing," is the technique of statistically estimating haplotypes using genotype data. The most typical scenario is when a group of people's genotypes are obtained at a number of polymorphic locations.
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DNA gets copied during a process called replication. When does this happen?
DNA replication occurs during the S phase of the cell cycle, prior to mitosis and cell division. The base pairing rules are critical to the replication process. When DNA is replicated, it is copied to make an identical molecule of DNA.
The opening of the double helix and separation of the DNA strands, priming of the template strand, and construction of the new DNA segment are the three major phases in replication. The two strands of the DNA double helix uncoil at a precise place known as the origin during separation.
In eukaryotic cells, DNA replication takes place in the nucleus, but in prokaryotic cells, it takes place in the nucleoid area. Prior to cell division, DNA replication occurs during the S phase of the cell cycle.
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Organisms that are not mobile, obtain energy from the environment by decomposing other organisms and reproduce by using spores are
classified as
A. animals
B. bacteria
C. fungi
D. plants
Organisms that are not mobile, obtain energy from the environment by decomposing other organisms and reproduce by using spores are classified as fungi. The correct option is C.
What is fungi?Any member of the eukaryotic group of organisms, which also includes the more well-known mushrooms and microbes like yeast and mould, is referred to as a fungus.
Enzymes that are secreted by fungi have the ability to release energy while dissolving complex chemical substances like proteins and carbohydrates into simpler ones.
Only a small portion of these nutrients and energy are absorbed by these fungal decomposers and their saprobic bacterial companions for their own use.
Thus, the correct option is C.
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What is a segment of dna on a chromosome that codes for a specific trait?
In osmosis, water moves across the membrane from a solution of
Explanation: In osmosis, water moves from areas of low concentration of solute to areas of high concentration of solute.
an organic compound that is made of one or more chains of amino acids and that is a principal component of all cells is ____
Proteins are organic compounds made up of one or more chains of amino acids. The tissues and organs of the body rely on proteins for their construction, operation, and regulation.
Additionally, they have a role in the movement and storage of nutrients, the synthesis of hormones and enzymes, and the development of antibodies that aid in the defence against infection. Amino acids, which are organic molecules composed of carbon, hydrogen, oxygen, and nitrogen, are the building blocks of proteins.
Twenty different amino acids can be mixed and matched in various ways to create a variety of proteins. The sequence of amino acids dictates the structure and function of each protein, and each protein has a distinct structure and function. Proteins are necessary for energy synthesis as well as the growth and repair of tissues.
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secretion of a substance from a cell is a function of the
Secretion of a substance from a cell is a function of the Golgi apparatus.
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. Furthermore, as previously stated, glycolipids and sphingomyelin are generated within the Golgi.
Functions of Golgi apparatus are:
The Golgi complex or apparatus is a place where proteins are delivered by the endoplasmic reticulum.
The proteins are then digested, sorted, and delivered to their final destinations, which might be secretions, lysosomes, or plasma membranes.
The Golgi apparatus also produces proteins such as sphingomyelin and glycolipids.
Thus, the correct answer is the Golgi apparatus.
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saccharomyces cerevisiae is a diploid yeast species.T/F
Answer:
True
Explanation: