bt corn is a genetically modified crop that contains a gene from another species. the genetic modification was made to give the plant which characteristic?
Answers
"Insect Resistance" is the characteristic this gene give the plant.
Bt-corn is a type of genetically modified organism.
Genetically Modified Organism :
A GMO is a animal or plant that has been genetically modified through the addition of a small amount of genetic material from other organisms through molecular techniques.
How was Bt corn genetically modified?
To create a Bt corn, plant scientists selected the gene for a particular Bt toxin and inserted it into the cells of corn plant at the embryo stage. The resulting mature plant has the Bt gene in all its cells and expresses the insecticidal protein (in leaves).
What are the benefits of Bt corn?
It can help producers keep crop loss minimum and retain higher profit margins and saves producers the time and money associated with scouting for pests and spraying pesticides on infected crops.
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Related Questions
Many weeds create spiky burrs that attach to an animal's hair or fur. As the animal travels, these burrs fall off, successfully
dispersing the plant's seeds.
Type of relationship:
weeds
animal
:: commensalism
:: mutualism
:: parasitism
.: +
::
-
:: O
Answers
Answer:
commensalism
Explanation:
I looked up the definitions and theres no way it could be the others.
Carbohydrates perform many metabolic and structural jobs inside the living organisms. An example of a carbohydrate that provides structural support to cells is —
F
chitin, used for skeletal support and strengthening of the body armor in arthropods such as beetles or snails
G
keratin, used to form cytoskeleton fibers that help maintain cell shape and anchor the organelles in place
H
cellulose, used by plant cells to construct the cell walls that provide plants with rigidity and protection from the outside environment
J
phospholipids, used to make cell membranes that separate the cell’s interior from its exterior and restrict the movement of molecules in and out
Answers
Answer:
The answer is j because glucose is a carbohydrates that is utilized by all life
Explanation:
Hope this helps:)
which structure inside the cell holds the digestive enyzmes that break down carbohydrates?
Answers
Answer:
Lysosomes
Explanation:
Lysosomes are membrane-bound organelles that contain digestive enzymes that break down proteins, lipids, carbohydrates, and nucleic acids. They are important in processing the contents of vesicles taken in from outside the cell.
Select the correct answer from each drop-down menu.
A
is an agent that causes disease. All
are pathogens.
Answers
A pathogens(C) is an agent that causes disease. All viruses(C) are pathogens.
What are pathogens?For Part 1, the correct answer is C. Pathogen. A pathogen is an agent that causes disease. All pathogens are infectious agents, but not all infectious agents are pathogens. For example, the common cold is caused by a virus, but the virus is not considered a pathogen because it does not usually cause serious illness.
For Part 2, the correct answer is C. Viruses. Viruses are the smallest and simplest pathogens. They are not cells, and they cannot reproduce on their own. They must infect a host cell in order to replicate.
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Complete question:
Select the correct answer. A __ is an agent that causes disease. All ___ are pathogens.
Part 1
A. Bacteria
B. Germ
C. Pathogen
Part 2
A. Bacteria
B. Fungi
C. Viruses
cell engulfs microorganisms in cell "eating":
pinocytosis
active transport
phagocytosis
passive diffusion
facilitated diffusion
Answers
Phagocytosis is generally meant by “cellular eating “ , so that makes sense I guess
What are the benefits of biodiversity? A. A variety of resources B. Healthier ecosystems C. Both A & B
Answers
Answer:
C. both A and B
Explanation:
They provide positive benefits for the environment
What DNA sequence would code for the amino acid methionine?
Answers
Consequently, methionine is the first amino acid to dock in the ribosome during the synthesis of proteins.
hope this helped somehow!
The biggest threat to rainforests comes from:
Disease
Parasites
Humans
Predators
Answers
Answer:
The biggest threat to rainforests comes from humans
The nervous system is a ___________________ in which your brain _____________ and ___________________ messages about things in and around your body.
Answers
Answer:
the nervous system is a system in which your brain sends and receives messages about things in and around your body.
Explanation:
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What text structure gives readers a chronological of events or a list of steps in a procedure?.
Answers
Order/Sequence is the text structure gives readers a chronological of events or a list of steps in a procedure.
Readers can view a timeline of events or a list of steps in a method thanks to this text structure. An example of this would be the events that led up to the war in a novel on the American revolution. The steps involved in gathering blue crabs might be described in another book.
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look at pic and answer please
Answers
Answer:
Chemical change
Explanation:
Answer:
chemical
Explanation:
Paano naaapektuhan ng bawat katangian ang isat isa?
Answers
Answer:
naaapektuhan ang bawaf katangian ng isat isa dahil sa maaaring ito ay nakakaapekto ng sobra
Explanation:
sana makatulong
For plants living in a dry areas, explain a possible conflict between the need to obtain carbon dioxide for photosynthesis and the need to conserve water.
Answers
Plants living in dry areas face conflict.
EXPLANATION:
Since they live in dry areas they will undergo more transpiration. If they open stomata during the day there will be excessive loss of water vapor that will result in their death. Therefore plants living in this area open the stomata during the night to obtain Carbon dioxide.This checks the loss of water through transpiration and provides the carbon dioxide for photosynthesis.Abstract
Plants regularly face dry conditions. Not having enough water poses a serious threat to a plant’s ability to grow and develop or even just survive! If plants die, we will not have enough food to eat! How do plants manage to survive during water shortages? They must somehow be able to sense, respond, and adapt to changes in water availability. They do this through a range of techniques that allow for a plant to combat water shortages. A plant’s structural “armor” helps it to decrease the amount of water it loses to the environment and increase water storage. Plants respond to water shortages in very complex ways. These responses can include changes in the plants’ growth and in their ability to protect themselves against toxic chemicals that accumulate in the plant during dry periods. All of a plant’s responses are directly controlled by the plant’s genes. If we can understand the genes that are involved in protecting plants against drought, in the future we might be able to make genetically modified crops that can tolerate global warming and climate changes.
Have you heard people speaking about global warming and climate change? Do you know what these terms mean? These terms basically imply that the earth is getting hotter every year. These higher temperatures lead to unexpected and unusual weather patterns. One of these extreme weather patterns is frequent and severe droughts. Droughts are very long dry periods without any rain. What do severe droughts mean for plants? Well, plants are sessileAn organism that can’t move and stays in one place, like a plant., which means they stay in one place and can’t move around like we can. They can’t pull up their roots and relocate to a shady or damp spot. Therefore, plants somehow need to deal with these ever-increasing drought conditions, or they will simply die. Remember, plants are our food. We eat plants raw or cooked (those vegetables your mom insists you eat!) or processed, like your favorite box of breakfast cereal [which is made from wheat or maize (corn)]. So, if plants die because of droughts, we will not have enough food to eat!
If there is no water around, what can plants do to survive? Amazingly, all plants seem to have a number of genes for drought-defense strategies encoded in their DNA. Genes are small sections of DNA, like chapters in a book. How they use these genes determines their ability to survive drought.
Some plants are drought-resistant. When we talk about drought-resistant plants, we mean plants that can withstand dry conditions without dying. A drought-resistant plant can survive drought by using three defense strategies: escaping, avoiding or tolerating the loss of water [1]. Drought tolerant plants are quite rare in nature and can endure long periods with no water at all. Some of the most spectacular drought tolerant plants are called resurrection plants. Resurrection plants are able to survive long periods (up to 3 years!) without any water. However, give them a little water and they will spring back to life in a day or two. Other drought-resistant plants may not be as spectacular, but they too can survive short periods of drought using special techniques and defense strategies.
Some Plants Have Special Structures That Help Them to Survive in Drought Conditions
Some plants are able to survive droughts because of their unique structures. These structural features include the external armor of plants that protects them against water loss, as well as tools to help the plants absorb and store water. Drought-resistant plants can be specially adapted to live and survive in very dry environments. These plants often look quite different from plants living in areas where water is easily available. The drought-resistant plants normally have special “avoidance” (one of the defense adaptations!) features to make sure less water is lost to the environment or that more water gets absorbed and stored in the plant. Plants called desert succulentsPlants that have thickened and fleshy leaves and stems, in which water can be stored. are a good example of plants that have drought avoidance strategies [2]. Desert succulents have thick fleshy leaves, which often don’t resemble leaves at all, and they have a thick waxy layer to prevent water loss. Desert succulents also have extensive root systems that search for water under the dry desert soil (Figure 1). Some succulents have specialized roots that form large bulb structures, which are actually underground water reservoirs for the plant. These plants can survive years of drought using the water stored in their bulbs.
Which of these is an external pest
for beef animals?
A. Crickets
B. Grasshoppers
C. Lice
D. Spiders
Answers
Answer:
C
Explanation:
Lice. External parasites are those that live on the outside of the body. A few of the most common external parasites that affect beef animals
21. Sickle Cell Anemia is condition that shows codominance. The genotype for normal blood cells is NN. Sickle
cell trait is the heterozygous condition (NS) and contains both normal and sickle shaped blood cells. Sickle cell
disease (SS) is when all of the blood cells are sickle-shaped and has lifelong medical implications. A man with
sickle cell trait has a child with a woman with sickle cell trait.
Complete the Punnett Square.
What is the probability of having a child with sickle cell trait?
m. What is the probability of having a normal offspring?
What is the probability of having a child with sickle cell disease?
k.
1.
n.
Answers
One of the genetic diseases known as sickle cell disease is sickle cell anemia. Red blood cells, which deliver oxygen to every region of the body, are affected in terms of structure.
What causes sickle cell anemia?Sickle cell is a hereditary condition brought on by a gene deficiency. Only when two genes—one from the mother and one from the father—are inherited together will a person be born with sickle cell disease.
The Punnett square for the cross between a man with sickle cell trait (NS) and a woman with sickle cell trait (NS) is attached below.
The probabilities for each possible offspring are:
25% chance of having a child with normal blood cells (NN)50% chance of having a child with sickle cell trait (NS)25% chance of having a child with sickle cell disease (SS)Therefore, the probability of having a child with sickle cell trait is 50%, the probability of having a normal offspring is 25%, and the probability of having a child with sickle cell disease is 25%.
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What are effects of deforestation on biodiversity
Answers
Answer:
Deforestation can directly lead to biodiversity loss when animal species that live in the trees no longer have their habitat, cannot relocate, and therefore become extinct. Deforestation can lead certain tree species to permanently disappear, which affects biodiversity of plant species in an environment.
1）Fishing boats have decreased the number of herring in the sea. Explain why that could affect the number of offspring puffins can raise.
2） Which animals have a bigger food supply now there are fewer herrings?
3） Global warming is expected to reduce the biomass of phytoplankton in the oceans. What effect will that have on the rest of the food web?
Answers
Explanation:
1) When the number of herrings decrease, the food available for the puffins decrease and therefore they will not be able to feed their offspring. This will cause the number of offspring to decrease.
2) Any other animal(s) which hunts and eats the same prey as a herring will now have a bigger food supply.
3) When the biomass of phytoplankton decrease, the next animal in the food web will not have any food and their numbers will decrease, decreasing the number of the animals next in the web, as they too lose their food. This will continue for the rest of the food web and the number of animals will decrease.
Explain how genetic engineering has impacted the fields of medicine, forensics, and
agriculture (e. G. , selective breeding, gene splicing, cloning, genetically modified organisms,
gene therapy).
Answers
Genetic engineering, often known as genetic modification, is a technique that modifies an organism's DNA through the use of technology developed in laboratories.
In the field of medicine, bacteria that can produce human growth hormone, human insulin, alpha interferon, a hepatitis B vaccine, and other medically beneficial chemicals have been developed using recombinant DNA technology.
Agriculture has previously made substantial use of genetic engineering to improve organisms, particularly in the form of genetically modified (GM) crops (also known as GMO —genetically modified organisms). For instance, crops and livestock have been genetically altered to be resistant to pesticides and herbicides, allowing farmers to use such substances to manage weeds and insects on those crops without running the risk of causing plant damage.
The variances are largely used in forensic applications of DNA typing to personal identification. Advances in molecular genetics have made it possible to analyze the person-to-person variations in sections of DNA that are not involved in coding for proteins.
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Glucose molecules from food sources provide energy to the cells of the human body. After a person eats, the level of glucose in their blood increases. If a person's blood glucose level becomes too high, a hormone in the pancreas, known as insulin, is released. Insulin helps move glucose out of the bloodstream. This causes the blood glucose level to decrease and return to equilibrium. The production of insulin is a mechanism that regulates the human body's internal environment and aids in
Answers
Answer:
regulating blood sugar levels
Explanation:
The primary function of the insulin hormone is to convert the excess glucose in the blood after a meal and store it for later. Glucose gets converted to glycogen, which is a compact molecule ideal for storage. When the body is need of energy, this glycogen is broken down to make up for the lack of glucose present in the blood.
Answer: the maintenance of homeostasis within the body system.
Explanation:
becauz mf
Briefly explain, in general terms, how of the protein components in root cells come to be different from the proteins found in leaf cells.
Answers
To up take mineral ions and water molecules from the soil, root hair cells have special protein carriers located in their outer membrane. These cells primarily perform the absorption function.
What are the functions of proteins?Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues.
Protein has many roles in your body. It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.
Proteins serve many functions in cells. They act as enzymes that catalyze chemical reactions, provide structural support, regulate the passage of substances across the cell membrane, protect against disease, and coordinate cell signaling pathways.
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What causes the green house affect
Answers
Answer: Hope This Helps!
Explanation:
Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.
Wheat stem rust (Puccinia graminis) is a fungus that can cause disease in wheat plants. The fungus infects a wheat plant by injecting proteins into the plant's cells. These proteins help the fungus grow and reproduce, harming the plant in the process.
To prevent losing crops to this disease, farmers around the world grow wheat plants that are resistant to wheat stem rust. Resistant plants make their own proteins that detect the injected proteins of wheat stem rust and then trigger a physiological response. This response prevents the fungus from growing on the plants and causing disease.
In 1999, a new strain of wheat stem rust was discovered in Uganda. This strain, called Ug99, can cause disease on wheat plants that were previously resistant to stem rust. According to the Food and Agriculture Organization of the United Nations, Ug99 is a major threat to global wheat production.
Based on the information above, which of the following is most likely true about the ancestry of wheat stem rust strain Ug99?
Answers
Ug99 is most likely descended from a strain of wheat stem rust that existed before 1999. This is because the strain was discovered in Uganda, a region that is known to have had stem rust for centuries.
The fact that the strain can cause disease on wheat plants that previously were resistant to stem rust suggests that it is a new strain that has evolved over time. This evolution could have been caused by natural selection, meaning that the strain is adapted to the environment and has become more virulent over time. Finally, the fact that the strain has spread to other parts of the world further suggests that it is descended from an older strain.
In conclusion, Ug99 is most likely descended from a pre-existing strain of wheat stem rust. This is supported by the fact that it was discovered in Uganda, it can cause disease on previously resistant plants, and its spread to other parts of the world. This is a major threat to global wheat production and further research should be done to find ways to control it.
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You have lived at sea level your whole life. At higher elevations, it is more difficult for your hemoglobin to bind oxygen. On a trip to the Colorado Rockies (located at high altitude) you will produce ____ erythropoietin during your trip compared to your normal level. - Less
- The same - More - No answer text provided.
Answers
More. When a person moves to a high altitude region like the Colorado Rockies, their body produces more erythropoietin.
When a person moves to a high altitude region like the Colorado Rockies, their body produces more erythropoietin.
Erythropoietin is a hormone that stimulates the bone marrow to produce more red blood cells.
Since red blood cells are responsible for transporting oxygen from the lungs to different parts of the body, having more red blood cells helps to increase the amount of oxygen that reaches the body tissues.
This mechanism helps the body to acclimatize to the high altitude region and avoid hypoxia.
Therefore, during the trip to the Colorado Rockies, the student will produce more erythropoietin than their normal level.
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what is the full form of ATP?????¿??????????????????
Answers
Answer:
The full term is "Adenosine triphosphate".
Explanation:
Crop rotation is a planned order of specific crops planted on the same field. Crop rotation means that succeeding crops are of adifferent genus and species. Examples are row crops planted after small grains or grain crops after legumes. The planned rotationmay be for a two- or three-year period.What is a LIKELY ecological impact of crop rotation?A) The main crop becomes resistant to pests.B) It can interrupt the life cycles of certain pests.C) Lesser amounts of nitrogen are needed in the soilD) It ensures the presence of a single type of nutrient in the soilPlease select the correct answer choice.
Answers
A likely ecological impact of crop rotation is that it ensures the presence of a single type of nutrient in the soil. (option D)
Please help! (in picture)
Answers
Answer:
Organisms 1 and 2 only because they both have a nucleus
What kind of mutation is demonstrated below:
ATGCCATGGCATTGA --> ATGCCATGCATTGA
Answers
Answer:
Deletion
Explanation:
ATGCCATGGCATTGA
-->
ATGCCATGCATTGA
Comparing the two sequences, you can see that one G nucleotide is missing in the new sequence compared to the original.
This is a single nucleotide deletion, where one nucleotide is lost from the sequence. Otherwise, the sequence is entirely unchanged.
Pls help! What field studies all organisms that have existed, where they came from, and how they are related?
Answers
Hope this helps :)
Which of these organelles manufactures proteins bound for secretion out of the cell? The ribosomes associated with the rough ER synthesize secretory proteins bound for the exterior of the cell.
Answers
The organelle that manufactures proteins bound for secretion out of the cell is the rough endoplasmic reticulum (RER).
The RER is a complex network of flattened sacs and interconnected tubules that are studded with ribosomes on their outer surface. The ribosomes associated with the RER synthesize proteins, which are then translocated into the lumen of the RER for further processing and modification.
Many of the proteins synthesized by the RER are destined for secretion out of the cell, either to be used elsewhere in the body or to perform specific functions in the extracellular environment. These secretory proteins are transported from the RER to the Golgi apparatus, another organelle involved in protein processing and trafficking, where they are further modified and packaged into vesicles for secretion.
Overall, the RER plays a critical role in the synthesis and processing of proteins destined for secretion out of the cell. Its close association with ribosomes and complex network of tubules and sacs make it a dynamic and highly specialized organelle that is essential for many cellular processes.
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PLS HELP ITS URGENT ITS DUE TODAY
Answers
Answer:
oh man, this one can possibly be two correct answers, Either C or D. Can you ask maybe a teacher to help you out? if I had to answer I would probably lean towards D. But I'm not 100% sure. :) Let me know if you get it correct or incorrect :D
Explanation: