The inheritance mode is mitochondrial DNA (mtDNA) inheritance. Mitochondrial DNA is inherited from the mother in most animals and some plants. Both males and females have mtDNA, but only females pass it on to their offspring.
The mitochondrial DNA, or mtDNA, is transferred exclusively by the maternal parent (mother) to all her children. In human beings, the mitochondrial DNA is inherited only from the mother's side. Thus, the inheritance mode is mitochondrial inheritance. That is a type of non-nuclear inheritance (extra-nuclear inheritance) in which organelles in the cytoplasm (mitochondria) and chloroplasts (in plants) carry DNA and pass it down to offspring.What is mitochondrial DNA? Mitochondrial DNA is inherited maternally because the egg cell contributes more organelles to the developing embryo than the sperm cell.
Thus, all offspring, regardless of gender, will inherit mitochondrial DNA from their mother's side. It can be used to trace maternal ancestry and track the origins of modern humans.
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Which of these is a form of active transport that means "Into" "cell?"
Which of the following is a type of active transport?
Active Transport is the term used to describe the processes of moving materials through the cell membrane that requires the use of energy. There are three main types of Active Transport: The Sodium-Potassium pump, Exocytosis, and Endocytosis.
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How do you think an ecosystem can reestablish in an area after a disturbance such as a volcano?
Answer: After an environmental disturbance such as a volcanic eruption or forest fire, communities are able to replace lost species through the process of succession. Primary succession occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient -rich soils.
Explanation:
After an earthquake or volcanic eruption, lichens break down the rocks to produce new, nutrient-rich soils. This procedure is called as primary succession.
What is primary succession?When a new piece of land is produced or is first exposed, primary succession occurs.
This may occur, for example, when lava solidifies and forms new rocks or when a glacier changes and bring out bare rocks. In the initial succession, organisms have to start over.
Mosses or lichens are frequently the first creatures to emerge in areas of primary succession.
Because they are the first species to appear, these organisms are known as pioneer species; pioneer species need to be resilient and powerful, just as early settlers.
Therefore, an ecosystem can reestablish in an area after a disturbance such as a volcano.
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Write a paragraph about the relationship of weathering and erosion. *
Your answer
At one point in the Bike Trip described in the passage, you traveled 1 kilometer in 0.1 hours. What was your speed during that time period? (don't provide units for your answer)
Answer:1 hope this helps
Explanation: I just took that quiz
Answer: it’s 1
Explanation: I took the quiz on canvas
Which statement best describes the movement of carbon dioxide into or out
of a plant during photosynthesis?
A. It is given off into the soil.
B. It is taken in from the soil.
C. It is given off into the air.
D. It is taken in from the air.
Answer:
D it is taken in from the air
Explanation:
Carbon dioxide is in the air and plants use it to make food.
Answer:
D : It is taken in from the air
Explanation:
Got it correct on a p e x
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What is an organelle?
Answer:
An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes
bacterial smears are fixed before staining to group of answer choices affix the cells to the slide. make their walls permeable. accept stain. make the cells visible.
Bacterial smears are fixed before staining primarily to make the cells visible. Fixation helps affix the cells to the slide, makes their walls permeable for stain penetration, and ensures that the cells remain intact during the staining process. The ultimate goal is to enhance the visibility of bacterial cells and facilitate their analysis and identification.
Fixation is a crucial step in preparing bacterial smears for staining. It involves treating the bacterial cells on the slide to make them adhere firmly and preserve their cellular structures.Affixing the cells to the slide: Fixation helps in attaching the bacterial cells to the slide, preventing them from being washed away during subsequent staining and washing steps. It ensures that the cells remain in place for further analysis.Making their walls permeable: Fixation also helps to make the bacterial cell walls permeable. By treating the cells with fixatives such as heat or chemicals, the cell walls become more porous, allowing the stain to penetrate and interact with the cell components.Accepting stain: Once the bacterial cells are fixed and their walls are made permeable, they are ready to accept the stain. Staining is the process of applying specific dyes or stains to the cells, which selectively bind to different cellular structures, providing contrast and making them more visible under the microscope.Making the cells visible: The primary purpose of staining bacterial smears is to make the cells visible for examination and identification. The stains highlight specific structures such as cell walls, cytoplasm, or nucleic acids, enabling researchers or microbiologists to observe and differentiate various bacterial species based on their staining patterns.For more such questions on Bacterial smears, click on:
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Calculate rate of change for a speed of a car from 4 minutes to 8 minutes. At 4 minutes the car is 20 miles per hour. At 8 minutes it is 40 miles per hour
Answer:
The rate of change is 5 miles, per minute
what is the niche of the sea star ?
39) what happens to activity levels in muscle spindle afferents versus golgi tendon organ afferents when a muscle contracts? when a muscle is passively stretched?
Muscle spindle afferents and Golgi tendon organ afferents are two types of proprioceptors that play a crucial role in proprioception. Proprioception is the ability to detect and understand the position and movement of body parts through the nervous system.
The muscle spindle is a sensory receptor found in skeletal muscle. The Golgi tendon organ (GTO) is a sensory receptor that is found at the musculotendinous junction. When a muscle contracts, the muscle spindle activity level will increase because of the stretching of the muscle fibers. This increase in muscle spindle activity will activate alpha motor neurons in the spinal cord, which will cause the muscle to contract.
This is called the stretch reflex. In contrast, the Golgi tendon organ activity levels will decrease when a muscle contracts because the muscle fibers are contracting, and the tendon is relaxing. T When a muscle is passively stretched, the muscle spindle afferents will become more active because of the stretching of the muscle fibers.
This will cause the alpha motor neurons to be activated, resulting in muscle contraction. The Golgi tendon organ afferents will also become more active, and as a result, it will cause the muscle to relax. The muscle spindle afferents are responsible for detecting changes in muscle length, while the Golgi tendon organ afferents are responsible for detecting changes in muscle tension.
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usesuspension colloid solution
Answer:
Suspension= Mud, Blood
Colliod=Ink
Solution=Tea
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When comparing two waves, the wave with the greatest wavelength is the one that has - a the greatest height. b the greatest speed. c the most space between crests. d traveled the longest distance.
When comparing two waves, the wave with the greatest wavelength is the one that has - c the most space between crests.
Wavelengththe distance between two successive crests of a wave in a sound wave or electromagnetic wave especially.the crest is the term that shows the highest part or point of a waveit means the distance between the two highest points of a wave is the wavelength of the wave.Learn more:
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Which of the following would enable your body to cope with low blood sugar level?
A urination
B thirst
C hunger
D coughing
Answer:
Answer:
The question is very confusing but, I do think that the answer would be C. Hunger. Because when your hunger you eat and the food can get your sugars up. But I think that answer could also be B. Thirst because if you have low blood sugar you could drink something that has sugar in it to get your blood sugar up.
Waves transfer energy. Mechanical waves, such as ocean waves and sound waves, move through some type
of matter, called a medium, while another kind of wave can travel through a vacuum. What type of wave
can move through a vacuum?
Answer: electromagnetic, or light, waves can move through a vacuum
Explanation:
Answer:
electromagnetic DUN DUN DUN
Explanation:
stay safe 2021
What is it called when rain or snowmelt seeps through soil or rock down into the aquifer?
Answer:
Groundwater
Explanation:
to become more familiar with the layers of the skin, use an unlabeled, blank skin chart to draw in and label all of the parts and layers. use a different color to represent each layer and each component. what could you do to show the differences between each layer?
To show the differences between each layer of the skin on an unlabeled, blank skin chart, you could use different colors to represent each layer and component. This color differentiation can help visually distinguish and highlight the distinct characteristics and structures of each layer, such as the epidermis, dermis, and subcutaneous tissue, as well as specific components like hair follicles, sweat glands, and blood vessels.
Colors: As mentioned, using different colors to represent each layer can visually distinguish them. For example, you can use one color for the epidermis, another color for the dermis, and a third color for the hypodermis.
Texture: You can create different textures or patterns within each layer to highlight their unique characteristics. For instance, you can use hatching or stippling techniques to depict a smoother texture for the epidermis and a more textured appearance for the dermis.
Labels: Adding labels to each layer can further clarify their identities. You can include the names of the layers, such as epidermis, dermis, and hypodermis, next to their respective regions on the chart.
Annotations: Alongside the layers, you can provide brief descriptions or key features of each layer to provide additional information and aid in understanding the differences between them.
By incorporating these visual elements, such as colors, textures, labels, and annotations, you can effectively demonstrate the variations and distinctions between the layers of the skin on the unlabeled chart. This approach enhances the clarity and educational value of the chart, making it easier for individuals to identify and comprehend the different components of the skin.
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To show the differences between each layer of the skin when drawing and labeling on an unlabeled blank skin chart, one could use different colors for each layer. Using different colors helps to differentiate between the various layers and parts of the skin.
Each layer has a different thickness, composition, and function, making it essential to use colors that stand out for clarity. The color code can help identify a particular layer or component. Likewise, one could use arrows or lines with colors to show the location or depth of each layer.
For example, one could draw a pink line around the epidermis to distinguish it from the green-colored dermis, and a blue arrow or line to represent the hypodermis or subcutaneous layer.
Additionally, incorporating illustrations and diagrams of the various structures that make up each layer, such as hair follicles, sebaceous glands, and sweat glands, can also help to enhance the understanding of the differences between each layer of the skin.
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which of the following characteristics of k channels are important for the selectivity for k rather than other ions? choose one or more: a. four rigid protein loops line the narrowest part of the pore. b. carbonyl groups line the wall of the pore. c. basic side chains line the wall of the pore. d. acidic side chains line the wall of the pore.
Potassium channels are an essential part of cell membrane functioning, allowing potassium ions to pass through the channels in a highly selective manner. Potassium channels have a variety of characteristics that contribute to their selectivity for potassium ions, including the presence of four rigid protein loops that line the narrowest part of the pore and the presence of carbonyl groups lining the wall of the pore.
The four rigid protein loops that line the narrowest part of the pore are important for the selectivity of potassium channels because they create a narrow, highly selective pathway for potassium ions to pass through. These loops are highly conserved among potassium channels, which is likely to reflect their importance in channel function.
The carbonyl groups that line the wall of the pore are also important for the selectivity of potassium channels because they form strong electrostatic interactions with the positively charged potassium ions. This electrostatic interaction helps to stabilize the potassium ions as they move through the pore, while also repelling other ions that do not have a similar charge.
The acidic and basic side chains that line the wall of the pore are not important for the selectivity of potassium channels, as they do not contribute to the selective binding of potassium ions.
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help me w/ this pls .. will mark brainliest
Candace is interested in learning more about colors. which question about colors could be answered through scientific investigations
1. Which color bends the most to make a rainbow?
2. What color of scented marker has the best smell?
3. Which flower has the prettiest shade of purple on its petals?
4. What is the best-looking color on a high-performance sports car?
Answer:
1
Explanation:
2,3, and 4 are all opinions that vary from person-to-person. 1 is the only one that can be tested using a scientific investigation.
Many species of bacteria live in your mouth and throat. These bacteria come from several different groups within domain Bacteria. You can avoid most bacterial infections by washing your hands frequently and not sharing food or eating utensils.
Choose the three statements that are true of every kind of bacteria.
A. respond to stimuli
B. can survive without water
C. can reproduce
D. can spontaneously generate
E. use energy
Which substance that produces oh ions dissolved in water
Explanation:
Question:-Which substance that produces oh ions dissolved in water?
Answer:-Bases
Did you know?Which substance that produces H+ ions dissolved in water?
Acids.
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lil huddy is travis scott
change my mind
Answer:
Yes
Explanation:
Yes
Answer:
how when your mind is set
Explanation:
Identify the type of chemical substance a scientist would need to use to cut and paste the genes to produce genetically modified tomato plants
Genetically modified (GM) foods have altered DNA to enhance desired qualities or improve the plant's resistance to pests or environmental factors. This DNA manipulation takes place using recombinant DNA technology, and it requires a chemical substance called restriction enzymes to cut and paste the genes.
Restriction enzymes, also known as molecular scissors, are a type of enzyme that can slice through DNA at a particular location and then seal the ends back together when exposed to the right conditions. As a result, scientists can select and remove a specific gene from one organism and insert it into another to produce genetically modified crops.
Restriction enzymes recognize a specific DNA sequence called the restriction site, and they cut the DNA at that point. Each restriction enzyme has its own restriction site, and this specificity allows scientists to select the gene they want to cut and paste from one organism to another. For example, if scientists want to improve the shelf life of tomatoes, they can use restriction enzymes to cut out the desired gene responsible for the long shelf life trait in one plant species and paste it into the DNA of the tomato plant to produce genetically modified tomatoes with an extended shelf life.
In conclusion, restriction enzymes play a crucial role in the genetic engineering process, allowing scientists to create genetically modified plants with desirable traits.
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Explain if and why alpha-Bungarotoxin affect the generation of an action potential on a single presynaptic neuron and how an external stimulator used to bring that neuron to threshold would affect it?
Alpha-bungarotoxin blocks nicotinic acetylcholine receptors, reducing the probability of generating an action potential. Higher-intensity stimuli may be needed to overcome its effects.
Alpha-bungarotoxin is a type of toxin that affects acetylcholine receptors. These receptors are essential for the generation of an action potential on a single presynaptic neuron. Therefore, alpha-bungarotoxin can have an effect on the generation of an action potential on a single presynaptic neuron.
The toxin can bind to and block the nicotinic acetylcholine receptors (nAChR) on the postsynaptic membrane. This leads to a decrease in the number of nAChR available for acetylcholine to bind to, resulting in a decrease in the amplitude of the endplate potential and a decrease in the probability of generating an action potential. This can lead to a decrease in muscle contraction or paralysis.
External stimulators, such as electrical stimuli, can be used to bring the neuron to the threshold. However, if alpha-bungarotoxin is present, it will still be able to block the nAChR, resulting in a decrease in the probability of generating an action potential. In this case, a higher-intensity stimulus may be required to bring the neuron to the threshold.
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4.38 blood types of children. emily and michael both have alleles o and o. (a) what blood types can their children have? (b) what is the probability that their next child has each of these blood types?
(a) Blood types that Emily and Michael’s children can have are A, B, AB, and O. Since Emily and Michael both have alleles O and O, then they can only give an O allele to their children. This means that all of their children will have type O blood.
However, their children will also inherit one of the possible A or B alleles from the grandparents. The A and B alleles are dominant to the O allele, but they are also co-dominant. Thus, it is possible for their children to inherit an A allele from Emily and a B allele from Michael or vice versa. In that case, their children will have AB blood. Otherwise, their children will have A or B blood types, depending on which allele they inherit from each parent.
(b) The probability that their next child has each blood type can be found by using a Punnett square. Since Emily and Michael both have O alleles, their genotypes are OO. To find the possible genotypes of their children, we will need to cross them with the possible genotypes of their grandparents. The Punnett square below shows all the possible genotypes of their children and the probability of each genotype.
Possible Genotypes ProbabilityOO 1/4AO 1/4BO 1/4AB 1/4
Therefore, the probability of their next child having type O blood is 1, and the probability of their next child having type A, B, or AB blood is 1/4 each.
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Enzymes can . . . (check all that apply)
Break molecules
Stabilize a reaction
Add molecules
rearrange molecules
build molecules
what is the best time for the removal of weeds .
Answer:
The best time to remove weeds is when the soil is damp and moist. The day after it has rained is a great day for weeding. Damp soils are loose and make it easier to remove them with their roots. Otherwise, you may run the risk of leaving the roots because they are stuck in the soil.
Natural selection works to produce change at which of the following levels?
Individuals
Communities
Populations
Characteristics
Answer:
Populations is the correct answer
a) the arrow points to one of the formed elements present in blood. what is its name?b) a decrease in the number of these elements would result in ?
The arrow is pointing to red blood cells also known as erythrocytes which are formed elements present in blood. They are called formed elements because they are the only elements in blood that are not fluids. The erythrocytes are tiny, biconcave disc-shaped structures that play an important role in blood.
These cells are important for transporting oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues to the lungs for removal. The oxygen-carrying capacity of erythrocytes is due to the presence of a protein called hemoglobin.A decrease in the number of these elements would result in anemia.
Anemia is a medical condition in which the number of red blood cells in the blood is lower than normal. This results in decreased oxygen delivery to the body's tissues, which can lead to a variety of symptoms including fatigue, shortness of breath, and weakness. There are different types of anemia, each with its own underlying cause.
Some of the common causes of anemia include iron deficiency, vitamin deficiency, chronic disease, and blood loss. Treatment of anemia depends on the underlying cause, but may involve dietary changes, supplementation, or medication.
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how can a cell remember which gene it needs to express (turn on and off) from one generation to the next?
A cell can remember which gene it needs to express from one generation to the next via the epigenetic memory, which is the cell's memory of the inherited modifications on the DNA, which are acquired during development. Epigenetics mechanisms, such as DNA methylation and histone modification, can turn genes on or off.
They can also maintain the gene's active or inactive state in the cell's lineage over time. Histone modification is an important mechanism in epigenetic regulation.
Histones are proteins that help package DNA into chromosomes and are subject to various post-translational modifications, such as methylation, acetylation, phosphorylation, and ubiquitination.
These modifications can regulate gene expression by modifying chromatin accessibility, promoting or inhibiting DNA binding by transcription factors, and determining the binding site of non-coding RNA.
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