Answer:
B. folds into a three-dimensional structure due to the interaction of neighboring amino acids in sequence.
Explanation:
After completion of translation the nascent polypeptide molecule enters endoplasmic reticulum (ER) from cytosol in order to fold into a specific three dimensional structure. A polypeptide becomes functional only after being folded, in nascent form it is non functional. In ER, a linear polypeptide molecule folds to form either an alpha helix or a beta sheet due to hydrogen bonding between various amino acids, these are secondary structures. These secondary structures then fold even more to form tertiary structure with the help of ionic bonds, hydrophobic interactions and disulphide linkage/bonds between various amino acids. After tertiary structure, finally a quaternary structure is obtained because of oligomerisation of two or more tertiary proteins. This well folded and oligomerised protein is usually a functional form of protein.
A stroke in the primary motor area has caused don to lose control over his skeletal muscles on the right side of his body. what lobe of his brain was damaged:
Final answer:
Don's stroke in the primary motor area leading to loss of control over his right-side skeletal muscles indicates damage to the frontal lobe of his brain.
Explanation:
The lobe of the brain that was damaged in Don's case is the left frontal lobe. This lobe contains the primary motor cortex, which is responsible for controlling voluntary movements of skeletal muscles. The fact that Don has lost control over his skeletal muscles on the right side of his body indicates that his stroke affected the left hemisphere of his brain, as the brain's hemispheres control the opposite sides of the body. This would be consistent with damage to the primary motor cortex located in the left frontal lobe.
He beginnings of a brain first becomes apparent around four weeks after conception when the neural ____ folds to form the neural ____.
compare and contrast speed and velocity
Diets high in lean protein are associated with an increased risk for cardiovascular disease. diets high in lean protein are associated with an increased risk for cardiovascular disease.
a. True
b. False
Answer:
The correct answer is option b. "False".
Explanation:
It is false that diets high in lean protein are associated with an increased risk for cardiovascular disease. Lean protein is a term used to describe food that is rich in protein and low in fat. A diet with low fat intake will be beneficial for the heart, because dietary saturated fat intake is what is associated with cardiovascular disease.
Ovulation tends to occur _____ of the menstrual cycle. within the first week near the midpoint at the end on the first day
Explain some of the benefits of biotechnology.
Sentences please!
Answer:
Explanation:
Biotechnology is the field of science and technology that utilizes the knowledge of biology for the purpose of producing new products, treatment of diseases and development of medicines.
The following are the benefits of biotechnology:
1. Improving the quality of crops: This biotechnology involves the process of genetic engineering by the which pests resistant and drought resistant genes can be injected into the genome of the plants. Thus making plants and crops healthy and disease free.
2. Development of vaccines for preventing the diseases: The process of genetic engineering will involve the extraction of the pathogenic genome which can be competent to fight against the pathogen present in the body of the host organism creating disease symptoms.
3. Utilization of the microbial materials for increasing the industrial production: Some of microbes such as bacteria are useful in synthesis of food products like beverages, milk products. Hence, their synthesis have been enormously increased with biotechnology that is by facilitating the cell culture.
Determining a person's reaction time (in milliseconds) would involve measurement on a(n) ____ scale of measurement.
Final answer:
Determining a person's reaction time would involve a ratio scale of measurement because it allows for comparisons using a true zero point and precise numeric values.
Explanation:
Determining a Person's Reaction Time and Scale of Measurement
Determining a person's reaction time (in milliseconds) would involve measurement on a ratio scale of measurement. This is because the ratio scale is the only scale that has a true zero point, which enables us to say how many times longer one reaction time is compared to another. When using a stopwatch or measuring with a ruler in the reaction time experiment, we are comparing against a standard (the second) and can calculate a precise numeric value, which characterizes ratio scales.
When you conduct the Take-Home Experiment-Reaction Time, you would calculate reaction time based on the distance the ruler falls, using gravity's acceleration to determine the time it takes for the ruler to drop from the starting position to where it is caught, which is a measurement involving ratio scales.
The production and consumption of atp during photosynthesis and cellular respiration. be detailed in where atp is made, and where it may be used both in photosynthesis and cellular respiration.
Answer:
The correct answer is "photosynthesis and cellular respiration are two independent processes, ATP is produced and consumed in both processes".
Explanation:
Photosynthesis and cellular respiration are two independent processes, ATP is produced and consumed in both processes During photosynthesis the complex ATP synthase produces ATP by the biological process known as chemiosmosis. On the other hand, intermediate processes that takes place during photosynthesis require the consumption of ATP, for instance during the Calvin-Benson cycle. Cellular respiration are a series of metabolic reactions where ATP is produced and consumed as well. During cellular respiration most ATP is produced by the ATP synthase located in the mitochondria, whereas ATP is consumed in some steps of the glycolysis process.
Vision is processed primarily in the ________ lobes
How is the cell membrane similar to a plastic bag with tiny holes?
One breezy spring, many rabbits are born in a forest. During the warm summer, several wolves move to the forest and many plant-eating birds fly away. Which is a limiting factor that would most likely decrease the rabbit population?
A.breezy spring weather
B.warm summer weather
C.wolves moving to the area
D.birds leaving the area
Limiting factors are the factors is an environmental condition that limits growth, distribution and abundance of a population in ecosystem. The movement of wolves in the area can increase the predation which will be the limiting factor for the rabbit population.
What is limiting factors?The factors that are responsible for constraining or slowing down the population size are called limiting factors.
The limiting factors can include a variety of factors including predators, habitat destruction, natural calamities, etc.
As the increasing wolves population leads to increased predation, which will limit the population growth of rabbits.
Thus, the correct option is C.
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Solar energy is used to produce energy rich compounds in which structure
Toxins are non-living biological agents produced by living plants, animals, or bacteria. an example of a toxin is:
Answer: Botulinum toxin
Toxins are non-living biological and chemical agents produced by living microorganisms from animals and plants that can cause harm to humans, plants and animals. An example of toxin is botulinum toxin produced by the bacterium Clostridium, which is a neurotoxic protein that prevents the release of the neurotransmitter acetylcholine from axon endings at the neuromuscular junction and causes flaccid paralysis.
Moreover, toxin are more closely related to chemical warfare agents that can only affect those who are exposed to the agent and that they are not considered as transmissible disease.
A leech attaches itself to the gums of a crocodile and sucks the crocodile's blood. Then, the crocodile opens its jaws so that an Egyptian Plover bird can kill and eat the leech. The relationship between the crocodile and the Egyptian Plover is an example of _______. A. parasitism B. commensalism C. mutualism D. predation
Which statement describes Mendels hypotheses regarding gametes
a gamete carries one allele for a gene.
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Sequence of m-rna that is not involved in coding for a protein which is cut out before it is read by the ribosomes
In science class, Maria observes that a white-colored flower has shades of red when it’s watered with red-colored water. She forms a hypothesis that the color reaches the flower through the stem. What should Maria do to confirm the hypothesis?
Answer:
An observation was recorded by the Maria in the class that white flowers show red patches when colored with the stem. She proposed the hypothesis that color reaches the flower through the stem.
To test the hypothesis she will perform a "scientific experiment" where she would divide the samples into two groups: control and experimental. In the control samples, she will grow the plants in red samples with no stem whereas in the experimental group she will grow the samples in different concentrations of red color with stems. This will help confirm her hypothesis.
Lepirudin is a drug that inhibits thrombin. it will have an effect specifically on the __________. lepirudin is a drug that inhibits thrombin. it will have an effect specifically on the __________. common pathway of coagulation extrinsic pathway of coagulation intrinsic pathway of coagulation thrombolysis
the codon CGA specifies arigine in all life forms on this planet. This is part of the universal genetic code. Explain the significance of this
Sarah has experienced brain damage making it difficult for her to understand spatial layout. which area of her brain has most likely sustained damage?
what animal tells us when spring is here?
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What type of energy transformation takes place when carbon is cycled in a gasoline-based car?
Thermal energy to thermal energy
Chemical energy to chemical energy
Thermal energy to mechanical energy
Chemical energy to mechanical energy
In the video, light passing through two slits creates a pattern of bright and dark fringes on a screen. the bright fringes result from __________; the dark fringes result from __________.
How do ions and electrical charges play a role in communication with the muscle?
The electrical charge that travels along the motor neuron is caused by depolarization. Depolarization is caused by the inflow of Na+ ions into the neuron. At the neuromuscular junction, depolarization causes Ca2+ ions to enter the post-synaptic neuron. Binding of Ca2+ to sensor protein in the neuron causes the neuron to release neurotransmitter acetylcholine into the synaptic cleft. The neurotransmitter binds to ionotropic receptors on the sarcolemma of the muscle fiber causing contraction of the muscle fiber.
If a person is heterozygous for the sickle-cell allele, they are protected from both malaria and sickle-cell anemia. this is called:
Answer:
non-lodge-kins-limphomia
Explanation:
i got the answer right.
About half of all babies are able to walk independently by __________ months of age.
The allele that is visible in the phenotype of a heterozygous individual is known as the _________ allele because it masks the other allele that must be present in that individual
The student noticed that as new cells formed they contained rod shaped chromosomes. It is necessary for onion cells to contain chromosomes because chromosomes
It is necessary for onion cells to contain chromosomes because chromosomes contains the genetic material called DNA.
What is deoxyribonucleic acid (DNA)?DNA is a self-replicating material which is present in nearly all living organisms as the main constituent of chromosomes. It carries genetic information and inherit information from parents to progeny .
Each onion cell consists of 8 chromosomes, whereas a diploid meiocyte of an onion cell consists of 16 chromosomes.
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Final answer:
Chromosomes are crucial for onion cells as they contain the genetic material that dictates the organism's traits and ensures continuity of life. Chromosomes become visible and separate into chromatids to be evenly distributed during mitosis, ensuring each new cell has a complete set of genetic instructions.
Explanation:
It is necessary for onion cells to contain chromosomes because chromosomes carry the genetic information required for the organism to develop, survive, and reproduce. This genetic information, encoded in the DNA, directs the production of proteins, which determine the organism's traits. Notably, every cell in a eukaryotic organism, such as an onion, contains the same number of chromosomes, ensuring that each cell has a full set of genetic instructions. Chromosomes are most apparent during cell division, particularly mitosis, where they condense and become distinguishable as rod-shaped structures within the cell nucleus.
During mitosis, each chromosome is duplicated, resulting in two identical chromatids. Because each new cell receives half of each 'X-shaped' chromosome, or one chromatid, it is assured that each daughter cell inherits a complete set of the organism's genetic material. This conservation of chromosomal information is essential for the continuity of life and the preservation of the organism's characteristics.
As the exercise progresses, muscular activity __________ venous return. this increases the _________ on the right ventricle.
A patient complains of leg pain that wakes him at night. he states that he "has been having problems" with his legs. he has pain in his legs when they are elevated that disappears when he dangles them. he recently noticed "a sore" on the inner aspect of the right ankle. on the basis of this health history information, the nurse interprets that the patient is most likely experiencing