Answer:
'Prion' is a term first used to describe the mysterious infectious agent responsible for several neurodegenerative diseases found in mammals, including Creutzfeldt-Jakob disease (CJD) in humans.
Explanation:
The term to describe a mutant viral protein without a genetic code that can cause disease is a "prion." Prions are abnormal forms of proteins that can induce misfolding of normal proteins, so option a is correct option.
The misfolded prion protein can convert normal proteins of the same type into the abnormal misfolded form of protein, leading to a chain reaction and accumulation of misfolded proteins. This can cause damage to brain tissue and result in the characteristic symptoms associated with prion diseases, which include changes in behavior, neurological dysfunction, and ultimately, severe neurological degeneration. so option a is correct option.
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complete question is below
What’s the term to describe a mutant viral protein without a genetic code that can cause disease?
A. prion
B. virion
Which of the following pays a fixed rate of return
Answer:
Reinvestment of coupon payments
What is the function of the cell membrane? The cell membrane controls what goes into the cell (food) and what leaves the cell (waste). The cell membrane protects the cell from damage. The cell membrane controls the amount of water that goes into the cell and stores it there if it doesn't rain. The cell membrane allows air to enter, but won't allow water to enter into the cell.
Answer:
Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot. Small hydrophobic molecules and gases like oxygen and carbon dioxide cross membranes rapidly
Explanation:
Glucose break down during cellular respiration.
O True
O False yes
Need Done before tomorrow pls
20 Matching questions
Answer:
1) T
2) C
3) G
4) S
5). B
6) L
7) R
8) E
9)H
10)K
Explanation:
ITS ONLY 10 I KNOW :)
I will give brainlist
In animal cells, cytokinesis is accomplished by using cell plate.
true
false
Answer:
true
i hope its help
carry on learning
In animal cells, cytokinesis is accomplished by using cell plate.
TRUE
False
Answer:
True
what is osmosis and diffusion
Osmosis: Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution. ... Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration.
The glycoside bond formed is similar to which of the following in proteins?
A) bond in amine group B) peptide bond
C) disulfide bond D) bond in the β . sheet
Answer:
B) peptide bond
Cessation of breathing is called
Answer:
I would be willing to bet that the answer to this is Apnea
Apnea is defined as "temporary cessation of breathing, especially during sleep"
Bacterial and viral infections of the brain are rare because the ________ prevents most viruses, proteins, and bacteria from entering the cerebrospinal fluid.
Answer:
blood-brain barrier
Explanation:
The brain is well protected against microbial invasion by cellular barriers, such as the blood-brain barrier (BBB) and the blood-cerebrospinal fluid barrier (BCSFB). In addition, cells within the central nervous system (CNS) are capable of producing an immune response against invading pathogens.
what is the purpose of transcription A. To produce DNA B. To produce Lipids C. To produce RNA D. To produce Amino Acids
Explanation:
the answer is d.
amino acids 4 protein synthesis...
How does the cardiovascular system/ respiratory system/ nervous system/ digestive system work together?
Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide. Your digestive system absorbs water and nutrients from the food you eat. Your circulatory system carries oxygen, water, and nutrients to cells throughout your body.
(1) Inhales (breathes in) Oxygen - good for the body - gives it to the Circulatory System to be transported throughout the body through the blood.
(1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go.
Answer:
Explanation:
Hope its help you. I wrote kinda more information thou
The human body contains trillions of cells, 78 different organs and more than 60,000 miles of blood vessels if you stretched them end-to-end. Incredibly, all of these cells, vessels and organs work together to keep you alive.
Each organ belongs to one of ten human body systems. These body systems are interconnected and dependent upon one another to function. Your heart does not beat unless your brain and nervous system tell it to do so. Your skeletal system relies on the nutrients it gains from your digestive system to build strong, healthy bones.
There are 10 body systems:
Circulatory
Respiratory
Nervous
Muscular
Skeletal
Digestive
Endocrine (hormones)
Lymphatic, or immune system
Reproductive
Integumentary (skin, hair)
A body system is a group of parts that work together to serve a common purpose. Your cardiovascular system works to circulate your blood while your respiratory system introduces oxygen into your body.
The human body contains trillions of cells, sels if you stretched them end-to-end. Incredibly, all of these cells, vessels and organs work together to keep you alive.
Each organ belongs to one of ten human body systems. These body systems are interconnected and dependent upon one another to function. Your heart does not beat unless your brain and nervous system tell it to do so. Your skeletal system relies on the nutrients it gains from your digestive system to build strong, healthy bones.
Stylized human body anatomy chart: skeletal, muscular, circulatory, nervous and digestive systems. Flat cartoon style.
There are 10 body systems:
Circulatory
Respiratory
Nervous
Muscular
Skeletal
Digestive
Endocrine (hormones)
Lymphatic, or immune system
Reproductive
Integumentary (skin, hair)
A body system is a group of parts that work together to serve a common purpose. Your cardiovascular system works to circulate your blood while your respiratory system introduces oxygen into your body.
Each Body System Works with the Others
Each individual body system works in conjunction with other body systems. The circulatory system is a good example of how body systems interact with each other. Your heart pumps blood through a complex network of blood vessels. When your blood circulates through your digestive system, for example, it picks up nutrients your body absorbed from your last meal. Your blood also carries oxygen inhaled by the lungs. Your circulatory system delivers oxygen and nutrients to the other cells of your body then picks up any waste products created by these cells, including carbon dioxide, and delivers these waste products to the kidneys and lungs for disposal. Meanwhile, the circulatory system carries hormones from the endocrine system, and the immune system’s white blood cells that fight off infection.
Each of your body systems relies on the others to work well. Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs. The bones of your skull and spine protect your brain and spinal cord, but your brain regulates the position of your bones by controlling your muscles. The circulatory system provides your brain with a constant supply of oxygen-rich blood while your brain regulates your heart rate and blood pressure.
Even seemingly unrelated body systems are connected. Your skeletal system relies on your urinary system to remove waste produced by bone cells; in return, the bones of your skeleton create structure that protects your bladder and other urinary system organs. Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells.
Working together, these systems maintain internal stability and balance, otherwise known as homeostasis. Disease in one body system can disrupt homeostasis and cause trouble in other body systems. If you become ill with the AIDS virus that affects your immune system, for example, you may develop pneumonia in your respiratory system, a yeast infection in your reproductive system, Candida that affects your esophagus in your digestive system or the skin cancer known as Kaposi’s sarcoma.
A DNA molecule with a total of 1500 nucleotides has 300 cytosines. How many thymines does the DNA molecule have?
The DNA molecules will have 450 thymines if a DNA molecule has a total of 1500nucleotides
A DNA molecule also known as deoxyribonucleic acid is made up of a double helix.
The DNA molecule with a total of 1500 nucleotides will contain 750 cytosine and Thymines and 750 guanines and adenine.
Hence we can have the expression:
C + T = 750
If there are 300 cytosines, hence;
300 + T = 750
T = 750 - 300
T = 450
This shows that the DNA molecules will have 450 thymines
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If one strand of a DNA double helix has the sequence ATCCGA, what is the sequence of the other strand
Answer:
TAGGCT
Explanation:
remember it is DNA so adenine with always bind to Thymine and Cytosine always pairs with guanine. You can remember as Apple Tree and Car Garage.
hope this helps :)
The cell membrane and water are both involved in
A. The Movement of materials into and out of the cell
B. Making and packaging proteins for the cell
C. Directing the cell's activities and functions
D. preventing chemical reactions from taking place
Answer:
A. The Movement of materials into and out of the cell
Explanation:
An operation that wants to serve clams that are displayed in a tank until prep must?
Operation that wants to serve clams that are displayed in a tank until prep
must obtain a variance from the regulatory authority.
A variance is usually gotten from the regulatory authority when the use of
property by the owners contradicts some laws. The variance is used as a
waiver for some of the laws within that jurisdiction.
This is why operation that wants to serve clams that are displayed in a tank
until prep must obtain the variance from the regulatory authority to ascertain if there is any potential hazard before granting it.
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If two animals mated, say one had a curly tail and the other had a straight one. All the offspring's carried the gene of a curly tail. Why would that happen?
Answer:
The curly tail gene is dominant
the location where the restriction enzyme “cuts” is called a..
una característica que se puede observar o medir sin cambiar la composición de la materia es una propiedad química ¿cierto o falso ?
Answer:
Falso, una propiedad química cambia no solo su apariencia, sino que la cambia por completo. Por ejemplo, la madera sigue siendo madera hasta que la pones al fuego y QUÍMICAMENTE se convierte en col. =)
Explanation:
As more and more people exist on Earth, which of the following will
DECLINE?
5 points
The amount of construction materials required on a yearly basis
The amount of solar energy that is retained in the troposphere and in the atmosphere
as a whole.
The area available to wildlife and other animals.
The use of energy needed to sustain communication and residential needs.
Answer:
the area available to wildlife and other animals
Explanation:
makes sense
What is the characteristic of tropical rainforest?
Explanation:
The tropical rainforest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poor soil, and high levels of biodiversity (species richness)What is the important of ecological factors to organisms
Explanation:
The ecological factors that affect the growth of plants and determine the nature of plant communities are divided into three types.
The three types of ecological factors are: (1) Climatic factors which include rainfall, atmospheric humidity, wind, atmospheric gases, temperature and light (2) Physiographic factors which include altitude, effect of steepness and sunlight on vegetation and direction of slopes (3) Biotic factors which include interrelationship between different plants of a particular area, interrelationship between plants and animals occupying the same area and interrelationship between soil microorganisms and plants.
I. Climatic Factors:
The important climatic factors of a region are rainfall, atmospheric humidity, wind, temperature, and light. Of these climatic factors each one individually contributes to the general and overall effect of climate by influencing the life processes of plants which constitute the vegetation.
a human organ is being prepared for transplant. in what type of solution must it be bathed?
A. A hypertonic solution
B. A hypotonic solution
C. Pure water containing solutes
D. A solution with the same osmolarity as the organ tissue
it must be bathed in a solution with the same osmolarity as the organ tissue.. inorder for it not to gain or lose its solute concentration.
I it is placed in a hypotonic solution it will gain water and eventually burst and if placed in a hypertonic solution it will lose water and shrink.
it must be bathed in solution with the same osmolarity as the organ tissue.
Osmosis allows for the diffusion of water from the region of higher concentration to the region of lower concentration.
Osmolarity measures the amount of solute concentration
For an organ place in a hypertonic solution i.e solution that has a higher solute
organ bathed in a hypertonic solution will continue to absorb in more water which can eventually burst the organ when it is too muchFor organ in hypotonic solution i.e solution that has a lower solute concentration
organ bathed will have to lose more solution because itself has more solute than the solution and can lead to shrinkagebut when the osmolarity is the same the Organ will have the same solute concentration as the solution and will help keep the organ in its original form, it will not absorb or lose any solution.
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1.__________prepare their own food and _______Depend on other organisms for their food.
2.Producers are also called are also called ------ and consumers
3. _____helps the producers trap the energy in sunlight
Answer:
1. autotrophs or plants and heterotroph or animals
2. a producer is an autotroph
3.Chlorophyll
Explanation:
A consumer is a heterotroph and a producer is an autotroph. Both are organisms that obtain energy from other living things
(i hope it helps)
In respiratory system, most of the dirt/ microbes in the air are trapped by
Answer:
Cilia propel a liquid layer of mucus that covers the airways. The mucus layer traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.
what you know about meiosis, fertilization, genotypes, and phenotypes to describe how traits are inherited. Include predicted ratios of types of offspring. This is a combination of learning objectives 3.18 (meiosis), 3.23 (fertilization), 4.1 on inheritance, and 4.2 on monohybrid crosses. This will require deep thinking about how these four learning objectives are connected.
Meiosis is a type of cell division in which four daughter cells are produced from a single parent cell. In each daughter cell, half number of chromosomes are present. This type of cell division occurs in sex cells such as sperm and eggs.
Fertilization is a process in which a sperm cell successfully meets or combine an egg cell. The newly fertilized cell is called zygote is produced during the process of fertilization.
A genotype is a collection of genes. Genotype is also refer to the two alleles that are inherited for a particular gene. The genotype is expressed when the information encoded in the genes' DNA is used to make protein and RNA molecules.
The term "phenotype" refers to the physical properties of an organism which can be seen. Phenotype includes the appearance, development, and behavior of an organism. An organism's phenotype is determined by its genotype.
Meiosis, fertilization, genotypes, and phenotypes are interconnected to each other because all these terms perform a specific contribution in the process of reproduction.
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How many iodine atoms are in a molecule of the compound carbon
tetraiodide?
A. 4
B. 5
C. 6
D. 3
Awnser:
6
Explanation:
it Is 6 because their is 2 electrons on the inside and 4 electrons in the outside
Answer: its 4
Explanation:
What is the most likely mode of inheritance? Which individuals from the pedigree exclude other models of inheritance?
PLZ HELP
Answer:
The modes of inheritance are autosomal dominant , autosomal recessive, and X-linked. To simplify the discussion of these different forms, the trait used in the following text will be a hereditary disease.
Brainliest plz
what layer is attached to the basement membrane by hemidesmosomes
Answer:
epidermis
The hemidesmosomes mediate the attachment of the basal keratinocytes of the epidermis to the underlying basement membrane (Figure 147-1B).
How do endocrine glands send messages to other organs?
Answer:
Endocrine glands make chemicals called hormones and pass them straight into the bloodstream. Hormones can be thought of as chemical messages. From the blood stream, the hormones communicate with the body by heading towards their target cell to bring about a particular change or effect to that cell
Which increased age skeletal muscle show?
Answer: With aging, there is a decline in the ability to repair such oxidative damage thereby causing the cascade of events leading to muscular dysfunction.
Explanation: Aging results in a gradual loss of muscle function, and there are predictable age-related alterations in skeletal muscle function.