The process of copying a sequence of dna nucleotides into a complementary sequence of rna nucleotides is called
Evidence suggests that the addictiveness of some drugs, including cocaine and nicotine, is related to increases in the activity of which neurotransmitter?.
Some drugs fundamentally influence one neurotransmitter or class of neurotransmitters. For instance, prescription opioids and heroin deliver impacts that are like (however more articulated than) those created by the neurotransmitters endorphin and enkephalin: expanded absence of pain, reduced readiness, and low breath. Different medications upset more than one sort of neurotransmitter. Cocaine, for instance, joins to structures that manage dopamine, prompting increments in dopamine activity and creating euphoria; it likewise delivers changes in norepinephrine and glutamate frameworks that cause stimulant impacts.
According to the endosymbiotic theory and given the tree below, which was constructed from whole genome sequences or exemplar organisms from the three domains of life, where would be the most likely place for a branch containing the animal mitochondrial genome be connected? in other words, animal mitochondrial dna is most closely related to the complete genome of which type of organism?
A mixture of mineral grains and rock fragments organic material water and gas that can support plant growth is called
Translation and protein synthesis is taking place at the ribosome in this illustration. Where did the original instructions for this process originate?
Answer:
DNA in nucleus
Explanation:
Using repetition and deliberate practice to master skills and habits is essential to ________ memories.
Using repetition and deliberate practice helps move information from short-term to long-term memory, aiding the formation of long-term memories. Techniques like elaborative rehearsal, chunking, and mnemonic devices can enhance this process.
Explanation:Repetition and Deliberate Practice in Memory FormationUsing repetition and deliberate practice to master skills and habits is essential in cementing long-term memories. This process involves moving information from short-term memory to long-term memory through active rehearsal. For example, when children learn their ABCs by singing the alphabet song over and over again. Additionally, procedural memories such as skills for riding bicycles or driving are also developed over time through repetition and practice.
Methods like elaborative rehearsal can enhance memory. This technique involves linking new information to already stored knowledge and repeating it. Lastly, another helpful strategy is chunking, where you organize information into manageable bits or chunks, such as breaking up a phone number into area codes and smaller groups of numbers.
Mnemonic devices are another effective method for aiding memory. They are especially useful when we want to remember larger pieces of information such as the order of planets in a solar system or steps of a complex mathematical operation.
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Sample prep _____ pcr amplification _____ pcr purification _____ sequencing prep _____ dna sequencing _____ sequence analysis
a. computer builds dna sequence to match
b. copy the bacterial dna
c. production of variable length dna samples
d. extract dna by dissolving cell wall with buffer
e. remove contaminants from dna f. separate the individual dna pieces by length
The cell theory is based on three major premises: Cells are the basic units of life. Each cell must come from a preexisting cell. All living things are made up of cells. Which of the following discoveries was the last to be made?
What part of a dna nucleotide carries genetic information?
a. the phosphate
b. the sugar
c. the base
d. the amino acid
e. the hydrogen bond?
What feature distinguishes adipose tissue from other connective tissues?
How did the Mesozoic era end
Explain why fungi cannot be stained by using stains that are commonly used to stain bacteria
A sudden, loud noise will reflexively cause the tensor tympani muscle to __________ and cause the stapedius muscle to __________.
How do single celled organisms, like paramecium, adapt to living in a hypotonic environment?
Osmoregulation is a process through which do single celled organisms, like paramecium, adapt to living in a hypotonic environment.
Through a process known as osmoregulation, single-celled organisms like Paramecium adjust to life in a hypotonic environment. Osmoregulation is the control of the concentrations of water and solutes within an organism in order to preserve internal equilibrium or homeostasis.
In a hypotonic setting, the surrounding solution's solute concentration is lower than that of the Paramecium cell's cytoplasm. As a result, a concentration gradient is created where water seeks to enter the cell, possibly resulting in cell rupture or excessive swelling.
Contractile vacuoles are specialized structures seen in Paramecium. These vacuoles periodically contract, discharging the stored water from the cell, collecting extra water that enters the cell through osmosis. Through this procedure, excessive swelling is prevented, and the water balance is controlled.
Hence, osmoregulation is a process through which do single celled organisms, like paramecium, adapt to living in a hypotonic environment.
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How are the two sugar-phosphate strands of a DNA molecule joined together
Chloroplasts are found in __________. chloroplasts are found in __________. neither plant cells nor animal cells animal cells only both plant cells and animal cells plant cells and some protists
Answer:
The correct answer about this question is PLANT CELLS AND SOME PROTISTS.
Explanation:
Chloroplasts are organelles present in the cells of plants and other photosynthetic organisms such as algae. Algae belong to the Protista kingdom. However, in the protist kingdom there are also protozoa, which do not have the presence of chloroplasts, as they are heterotrophic beings, that is, they do not produce their food and do not have chloroplasts. Unlike algae, which present chloroplasts and perform photosynthesis.
Main characteristics of chloroplasts:
- They are green in color due to the presence of chlorophyll. This compound wrote before is one of the responsible for photosynthesis.
- They are limited by a kind of envelope formed by two lipoprotein membranes.
- It has inside it a liquid known as stroma.
- They have DNA, RNA and ribosomes. Thus, they have the ability to perform the process of protein synthesis and multiply.
what is a period lasting for a few thousand years during which Earth gets warmer?
Answer:
interglacial is ur answerExplanation:
The three major components of the cytoplasm are the ________.
The three main components of the cytoplasm are the cytosol, organelles, and inclusions. Organelles are specialized structures, while inclusions are non-functional components.
Explanation:The three major components of the cytoplasm are the cytosol, organelles, and inclusions. The cytosol is a semi-fluid substance that encompasses the organelles and inclusions. Organelles are specialized structures within the cell that perform various functions such as energy production, protein synthesis, and waste disposal. Inclusions are non-functional components within the cytoplasm, including stored nutrients, secretory products, and pigment granules.
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True or false? the purkinje fibers are considered the pacemaker of the heart.
Which particle is used to determine the atomic number of an element? A) Electron B) Neutron C) Proton D) Soutron
Gee's arm was cut during an industrial accident. the blood was pouring from the wound in spurts. which type of vessel was severed?
Final answer:
The blood vessel likely severed causing blood to spurt out in Gee's injury is an artery, due to the high pressure at which arteries carry oxygen-rich blood from the heart. Immediate measures to control bleeding and seeking medical attention are crucial, and the body's automatic response includes a vascular spasm to reduce the bleeding.
Explanation:
The type of vessel that was likely severed in Gee's arm if the blood was pouring out in spurts is an artery. Arteries are blood vessels that carry oxygen-rich blood away from the heart at high pressure. This high pressure often results in blood spurting out rhythmically with the heartbeat when an artery is cut. In comparison, veins carry blood back to the heart at a lower pressure, and bleeding from a severed vein presents as a steady flow, rather than spurting.
In the case of a severe injury where an artery is severed, it is critical to control the bleeding and seek medical attention immediately to prevent severe blood loss. Emergency medical techniques such as applying pressure to the wound, using a tourniquet, or clotting agents may be employed until professional medical help is provided.
Vascular spasm is a body's natural response to injury where the smooth muscle in the walls of the blood vessel contracts to reduce blood flow and minimize bleeding. However, this is typically insufficient to deal with severe arterial bleeding, and further intervention is necessary.
most enzymes are proteins but not all proteins are enzymes true or false
Which of these energy resources was not created by by the Sun's energy? petroleum uranium coal
Statistically, which adolescent is most apt to experience menarche first?
Rebecca, who is African American is most apt to experience menarche first.
What do you mean by menarche?Menarche defines the onset of menstruation, which is a normal physiologic process that occurs at regular monthly intervals. Menarche typically occurs around age 12 but a few years earlier or later is completely normal. Menarche happens during a time of physical and sexual maturation in adolescence known as puberty.
Moreover, menarche is defined as the first menstrual period in a female adolescent. Menarche typically occurs between the ages of 10 and 16, with the average age of onset being 12.4 years.
Therefore, it is the stage of initiation of menstruation in the life of a female girl. it generally occurs at an age of 11-13 years. It refers to the beginning of the reproductive phase in girls.
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A blood cholesterol level of 160 mg per 100 ml is indicative of what condition?
The nurse is assisting a primigravid on calculating the due date of her baby using naegele rule. the most important information provided by the mother is:
The nurse is
assisting a primigravid on calculating the due date of her baby using Naegele’s
rule. The most important information provided by the mother is Expected Date of
Birth. Naegele’s rule is used in Calculating
Estimated/Expected delivery date (EDD). The equation is Last Mentrual
Period minus 3 months plus 7 days plus 1 year.
(Should be approx. 280 days from LMP)
Please select the word from the list that best fits the definition
The push or pull of one object on another
A.Gravity
B. Intertia
C. Weight
Answer: A) Gravity
Explanation:
Transmission of the disease to a susceptible human by handling contaminated surfaces is referred to as
Assume that a mutation occurs in a human population that produces a horn (like a unicorn) in the middle of the forehead. further assume that the horn is inherited as a y-linked trait in humans. a man with the horn has a daughter who has a son with a man who has lacks the horn. what is the probability that the horned man's grandson also has a horn?
Match the proper definition with the correct category: evolution, mutation, genetic drift, or migration.