Allele frequency refers to the distribution of alleles within a population, often expressed as a percentage or proportion. It's used in studying genetic diversity and evolution, and it doesn't equate to the number of different alleles an organism can have or traits in a population.
Explanation:The allele frequency refers to the distribution of alleles in a population. To put it more specifically, it's the percentage or proportion of a particular allele for a specific gene in a given population. For instance, if 60% of a population has a particular allele for a certain trait, that would be the allele's frequency. It's crucial in studies of genetic diversity and evolution. The term doesn't refer to the number of different alleles an organism can have (which relates more to its genotype), the total number of different alleles in a population or the number of different traits in a population (which is more about phenotypic diversity).
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What part of the cell is referred to as semi permeable or "selectively permeable"?
How many electrons are in the outermost energy level of an oxygen atom as it shares electrons with hydrogen atoms as part of a water molecule? 2 6 8 4
What type of interaction is characterized by a health monitoring system sending a one time code to unlock the front door of the home of a patient who needs emergency treatment?
The dust bowl in the great plains is the best example of which push or pull factor?
Final answer:
The Dust Bowl was a push factor that led to the migration of millions from the Great Plains due to environmental and economic collapse from drought and poor land management.
Explanation:
The Dust Bowl in the Great Plains is the best example of a push factor. This environmental disaster, caused by a mix of drought and poor land management practices, resulted in severe wind erosion that devastated the farmlands. The consequence was a mass exodus, with millions of people moving out of the affected states between 1930-1940, during one of the largest migrations in US history.
As conditions in the Great Plains deteriorated, farms became unsustainable due to the lack of water, leading to failed crops, immense dust storms, and economic hardship. The Dust Bowl directly pushed people away from their homes and livelihoods in search of better living conditions elsewhere. This movement was largely influenced by the lack of agricultural opportunities following the ecological and economic collapse in the region.
nitrogen gas reacts with hydrogen gas to form ammonia. what are the reactants in the chemical reaction
Nitrogen gas and hydrogen gas
The patient has been placed on a nitroprusside drip for the treatment of a hypertensive crisis. which mechanism of action does the nurse know is true for nitroprusside?
Mechanism of action for nitroprusside is it directly relaxes vascular smooth muscle, allowing dilation of peripheral arteries and veins.
What are the functions of nitroprusside?Sodium nitroprusside, sold under the brand name Nitropress among others, is a medication used to lower blood pressure. This may be done if the blood pressure is very high and resulting in symptoms, in certain types of heart failure, and during surgery to decrease bleeding.
Sodium nitroprusside injection is used for lowering of blood pressure immediately in adults and children with high blood pressure. This medicine is also used to reduce bleeding during surgery, and treats acute heart failure.
Sodium nitroprusside is a water-soluble salt comprised of ferrous iron complexed with nitric oxide (NO) and five cyanide ions. Acting as a prodrug, SNP reacts with sulfhydryl groups on erythrocytes to produce nitric oxide.
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What are masterpieces and why are there so few of them?
Why is cancer considered to be a disruption in the cell cycle?
The water that falls from the sky today as rain may have once been part of the ocean. How can this be?
Answer:
The water that falls from the sky today as rain may have once been part of the ocean because of the cycle of water.
Explanation:
The water cycles between the ocean, the land, and the atmosphere. In a simple way to explain:
1. Water from the ocean, streams, rivers, and lakes evaporates and go to the atmosphere.
2. In the atmosphere, the water cools and condense in clouds.
3. Then, water from the clouds goes down to the land through snow or rain.
4. Then, water from land is collected in ocean, streams, rivers, and lakes; and the cycle begins again.
When more sensory neurons are tuned to a particular feature of a stimulus, the organism will:?
Blood-sugar levels are regulated by two hormones. Insulin acts to decrease blood-sugar levels; glucagon acts to increase blood-sugar levels. Based on this information, you would expect which of the following to be true immediately following a meal?
All information that an animal needs to live is stored in its
Answer:
The correct answer will be DNA.
Explanation:
The nucleic acid- DNA and RNA acts as genetic or heredity material of the organism. It acts as the genetic material of the cell as it can store the information required for the cell to maintain its life in coded form.
In the given case, since the cell is a eukaryote, its genetic material is DNA which acts as the genetic material of the cell. The information of the animal cell is stored in the form of codons which are triplets of the nitrogenous bases arranged in the coding region of the genome called genes.
It is these codons which code for the specific amino acids which bind with each other to form proteins. These proteins serve important functions of the cell from a catalytic role to the structural component.
Thus, DNA is the correct answer.
List three major marine ecological zones
What role do plasmodesmata play in plant cells? see section 11.2 ( page 239) ?
Final answer:
Plasmodesmata are channels connecting the cytoplasm of adjacent plant cells, allowing for the transfer of materials and signals, essential for plant communication and coordination.
Explanation:
Role of Plasmodesmata in Plant Cells
Plasmodesmata play a crucial role in maintaining cellular communication and transport in plant cells. Since the plasma membranes of neighboring plant cells are separated by rigid cell walls, these structures provide the necessary channels for cytoplasmic interconnectivity. Through plasmodesmata, materials such as nutrients, signal molecules, and water can be efficiently transported from one cell's cytoplasm to an adjacent cell's cytoplasm. They enable the entire plant to function as a coordinated unit, with water and nutrients being transferred from roots to stems and leaves, and signals being disseminated across the plant's cellular network.
Contrary to animal cells that use gap junctions for communication, plant cells utilize plasmodesmata. These channels are selectively permeable, allowing only specific small molecules, like calcium ions, to pass through while keeping larger molecules such as proteins and DNA out. This permeability ensures that while cells can quickly transmit signals and coordinate responses, they also maintain their individuality.
In conclusion, plasmodesmata are indispensable for the growth and survival of plants as they facilitate the essential processes of communication, coordination, and transport throughout the entire organism.
What is the portion of the eye that allows light to pass into the posterior chamber?
Why are six carbon dioxide molecules required to make one glucose molecule?
What role does a pig play in the ecosystem?
what organelle is semi permeable and surrounds the cytoplasm of both animal and plant cell
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Which statement is true?
Eukaryotic cells have one membrane.
Eukaryotic cells have multiple membranes.
Prokaryotic cells have multiple membranes.
Prokaryotic cells do not have a membrane.
A clinical laboratory technician should manage an independent medical laboratory true or false
which so-called "natural" fat fighter is made from the leaves of
c. sinensis?
Which of these statements BEST defines vestigial organs? A) vital organs that are functional in all organisms of a lineage. B) vital organs that are functional only in alternate generations of a linear. C) redundant organs present in an organism, which have been functional in the organism’s ancestors. D) redundant organs present in an organism, which will be functional in the succeeding generations of the lineage
Which organelle is responsible for producing the energy for cellular processes?
The energy released from glucose by the process of cellular respiration is in the form of _____.
Explanation:
energy released from glucose by the process of cellular respiration is in the form of adenosine triphosphate (ATP)
While conducting experiments on pea plants, Mendel observed that the combination of traits in the offspring did not match up with the parents. How did Mendel explain this?
A.) The Law of Segregation
B.) The Principle of Independent Assortment
C.) The Principle of Mitotic Division
D.) The Principle of Sex Linked Traits
Answer: Correct answer B. The principle of independent assortment
Explanation: The Principle of Independent Assortment, refers to crosses refers to dihibited crosses carried out in peas by Mendel. This principle explains that genes will be segregated or separated independently in meiosis, resulting in different allelic combinations in gametes and also the different combinations of characteristics in the offspring. Keep in mind that this principle only applies to gene traits that are on different chromosomes (not linked).
Did deletion of any of the possible control elements cause a reduction in reporter gene expression? how can you tell?
You have a patient who is a positive for strep on rapid antigen testing (rapid strep test). you order amoxacillin after checking for drug allergies (patient is negative) but he returns 3 days later, reporting that his temperature has gone up, not down (101.5 f in office). you also note significant adenopathy, most notably in the posterior and anterior cervical chains, some hepatomegaly, and a diffuse rash. you decide:
Lori made a spreadsheet to track her weekly exercise. columns b-h are monday-sunday, row 2 is cardio, and row 3 is strength training. which cell should lori use to track her 30 minutes of cardio on wednesday?
Based on the distribution of her activities in her spreadsheet, Lori should record Wednesday's 2 hours of cardio in cell 2D.
How to identify which cell Lori should use?To know which cell in her spreadsheet Lori should use to record her Wednesday activity, we must take into account that:
B = MondayC = TuesdayD = WednesdayE = ThursdayF = FridayG = SaturdayH = SundayAccording to the above, all Wednesday activities should be recorded in boxes D. On the other hand, they should be classified in row 2 if they are cardio and 3 if they are strength. So Wednesday's 30-minute cardio activity should go in cell 2D.
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Answer:
c2
Explanation:
When spread out and viewed with electron microscopy, an active rrna gene looks like a?
The ________ is the first relay station for gustatory information arising from the tongue.