Select all of the following that can result from nondisjunction of the X chromosome.

a. Polyploidy
b. an XYY male
c. an XXX female
d. Klinefelter syndrome
e. Turner syndrome
f. Down syndrome.

Answers

Answer 1

The correct option is (e) i.e. Turner syndrome can result from nondisjunction of the X chromosome.

Nondisjunction is the inability of sister chromatids or homologous chromosomes to correctly split during cell division (mitosis/meiosis). Nondisjunction can take one of three different forms: failing to separate a homologous pair of chromosomes during meiosis I; failing to separate sister chromatids during meiosis II; or failing to separate sister chromatids during mitosis. Daughter cells with aberrant chromosomal numbers occur from nondisjunction (aneuploidy). Before somatic cells divide by mitosis, the genetic material is replicated in the S phase. Each chromosome is made up of two sister chromatids that are joined at the centromere. Before the cell divides, sibling chromatids separate and move to opposing cell poles during the anaphase of mitosis. One daughter receives both sister chromatids of the impacted chromosome whereas the other receives none due to nondisjunction during mitosis. A chromatin bridge or an anaphase bridge is what this is. Since only daughter cells descended from the cell where the nondisjunction event has occurred will have an aberrant number of chromosomes, mitotic nondisjunction results in somatic mosaicism.

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Related Questions

explain why traits that aren’t present in either parent could show up in the offspring or in future generations of the offspring.

Answers

It can show because it can be a recessive trait that can be showed up in ones genes. Recessive traits can be less present in parent parents but if both parents have similar recessive traits it can be able to show up in offspring and future offspring. Also it can show in offsprings because of earlier generations. The parents might not have these traits but grandparents are great grandparents might have the traits.

Which option best defines half-life?

Answers

Answer:

Where are the answer choice

How might a population crash be related to resource availability in the environment or the carrying capacity of the ecosystem?

Answers

Answer:

To a certain extent, population numbers are self-regulating because deaths increase when a population exceeds its carrying capacity. Disease, competition, predator-prey interaction, resource use and the number of populations in an ecosystem all affect carrying capacity.

Which is an example of why the process of photosynthesis is important to life on Earth?
Grass uses photosynthesis to produce glucose, which is used within the grass for growth.
O Fungi use photosynthesis to decompose dead and decaying plant matter.
Ectothermic animals use photosynthesis to convert sunlight into energy for cell functions.
Green plants use photosynthesis to remove oxygen gas from the atmosphere and replenish the earth's carbon
dioxide

Answers

Answer:

A ) Grass uses photosynthesis to produce glucose, which is used within the grass for growth.

Explanation:

The glucose is used for the growth of the grass. which is needed for the grass for carbon dioxide to be absorbed and air to be made

What do ATP and Glucose have in common?​

Answers

Answer:

They are both chemical sources of energy. If you want a difference between the two, it is that they have differnen chemical structure. Glucose is made from carbon, hydrogen, and oxygen while ATP is made ribose, a five-carbon sugar, three phosphate groups, and adenine , a nitrogen-containing compound (also known as a nitrogenous base).

ATP (adenosine triphosphate) and glucose are both important molecules involved in the production of energy in cells.

What is glucose?

Glucose is a simple sugar that provides a significant source of energy to cells. It is broken down through a series of chemical reactions in a process known as cellular respiration, which results in the production of ATP.

During cellular respiration, glucose is oxidised and the energy released is used to power ATP synthesis.

In turn, ATP provides energy for a variety of cellular processes such as muscle contraction, protein synthesis, and cell division.

As a result, both ATP and glucose are required for cell energy metabolism.

Glucose is the primary fuel source for ATP synthesis, and ATP is the energy currency of cells, providing the energy required for various cellular processes.

Thus, this way, ATP and Glucose have many things in common.

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How could the extinction of plants have caused the extinction of some animals?

Answers

Some dinosaur only ate plants and no meat. As plants became extinct the dinosaur who ate plants couldn’t get the food they need so they starved.

Which phrase describes a protobiont?
brown goo
primordial soup
warm little pond
early life form

Answers

early life form is the one

Answer:

Its early life form. I got it right

Explanation:

Which phrase describes a protobiont?brown gooprimordial soupwarm little pondearly life form

Human blood consists of blood groups A, B, and O. However, there is one more blood group, AB, which contains alleles A and B in the same genotype. What is this phenomenon called?
A.
coinheritance
B.
codominance
C.
incomplete dominance
D.
polygenic inheritance

Answers

Answer:

B. codominance  

Explanation:

because if the placement of the A and B molecules on each cell is controlled by the proteins that are coded by different versions of the same gene, then IA and IB are codominant but both are dominant to Io. If a person receives an IA allele and a IB allele, their blood type is type AB, in which characteristics of both A and B antigens are expressed.

please help me everyone has different answers and it's driving me nuts thank you

please help me everyone has different answers and it's driving me nuts thank you

Answers

Answer:

I believe its in fact A but maybe not, I think a black hole will always be last in any cycle.

What interactions occur between two hexane molecules?.

Answers

The interactions that occur are Disperison forces

Hexane do not have any dipole-dipole interactions because they are non-polar molecules. Dispersion forces will occur between two hexane molecules.

What are Intermolecular forces?

The forces of attraction present between atoms, molecules and ions when they are present close to each other , this type of force is known as Intermolecular Forces. An intermolecular force is experienced between two particles when a positively (+) and negatively (-) charged particles are attract to each other.

These forces are weak in nature when these molecules do not possess strong forces of attraction between them resulting in a repulsive form.

There exist four types of intermolecular forces which are as follows:

1. Ionic bonds  

2. Hydrogen bonding

3.Van der Waals dipole-dipole interactions

4. Van der Waals dispersion forces

Among all the above mentioned  forces, Ionic Bonds are the strongest Intermolecular force.

Thus, hexane do not have any dipole-dipole interactions because they are non-polar molecules. Dispersion forces will occur between two hexane molecules.

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3) Describe the difference between growth and development.

Answers

Answer:

Growth is just 'getting bigger', whereas development is improvement. Growth can be explained as becoming bigger or larger or having more importance. Growth is termed as a physical change, where as development is said to be physical as well as social or psychological change.

Explanation:

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what kind of cells can develop from pluripotent stem cells?​

Answers

Answer:

Pluripotent cells can give rise to all of the cell types that make up the body; embryonic stem cells are considered pluripotent. Multipotent cells can develop into more than one cell type, but are more limited than pluripotent cells; adult stem cells and cord blood stem cells are considered multipotent.

A single tree produces enough air to supply in its lifetime for how many people for a year?.

Answers

The amount of air produced by a single tree over its lifetime can vary depending on a number of factors, such as the species of tree, its age, size, and growing conditions.

The lifetime of a tree can vary depending on the species, growing conditions, and other factors. Some trees have relatively short lifespans, such as certain types of fruit trees, which may only live for a few decades, while other species, such as some types of conifers and oak trees, can live for several centuries or even thousands of years.The age at which a tree begins to produce oxygen through photosynthesis also varies depending on the species and growing conditions.Lifetime generally refers to the entire duration of a person's existence, from the moment of their birth until their death. It encompasses all the events, experiences, and accomplishments that occur throughout a person's life, as well as their relationships with others, their personal growth and development, and their overall impact on the world.The concept of a lifetime can also be applied to other entities, such as organizations, products, or ideas. In these cases, the term refers to the total period during which the entity is active or relevant.Overall, the concept of a lifetime is a fundamental aspect of human experience and plays a significant role in shaping who we are and what we do.

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the fundamental reproductive cell produced by fungi is the _______.

Answers

I think the answer is spore hope this helps

the method used to obtain one’s material needs from one’s environment is called what?

Answers

The method used to obtain one's material needs from one's environment is called subsistence.

This refers to the ways in which individuals or societies acquire food, water, shelter, and other necessary resources to sustain themselves. Subsistence strategies can vary greatly depending on factors such as location, climate, available resources, and cultural traditions. Some examples of subsistence strategies include hunting and gathering, agriculture, pastoralism, and industrialization. Overall, the answer to your question is "subsistence."


The method used to obtain one's material needs from one's environment is called "resource acquisition." This process involves gathering, extracting, or producing resources that meet our needs and requirements.

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why does the biodiversity of an ecosystem affect its resilience

Answers

Biodiversity of an why does the biodiversity of an ecosystem affect its resilience because as there are various plants and animals in community, there is high probability that they have developed traits that help them to survive and adapt in their environment.

What is Biodiversity?

Biodiversity refer to population of different or various plants and animals living in an ecosystem each performing their roles in their niche.

Therefore, Biodiversity of an why does the biodiversity of an ecosystem affect its resilience because as there are various plants and animals in community, there is high probability that they have developed traits that help them to survive and adapt in their environment.

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most gastrointestinal tract diseases are ultimately self-limiting and nonfatal, so long as fluids are replaced. how do these two general observations help explain why such diseases so commonly affect humans all over the world? why do these disease characteristics help explain why so many different pathogens cause this disease?

Answers

The self-limiting and nonfatal nature of gastrointestinal diseases, with fluid replacement, explains their global prevalence. These disease characteristics contribute to the presence of diverse pathogens causing gastrointestinal illnesses.

Gastrointestinal tract diseases being self-limiting and nonfatal, as long as fluids are replaced, means that most individuals can recover from these diseases without medical intervention. This observation helps explain why such diseases are commonly found in humans worldwide.

As long as proper hydration is maintained by replacing fluids lost due to vomiting or diarrhea, the body can overcome these diseases on its own. This self-limiting nature allows the diseases to run their course and resolve without necessarily causing severe consequences, leading to a high prevalence across different populations.

The self-limiting and nonfatal characteristics of gastrointestinal tract diseases make it possible for a wide range of pathogens to cause these diseases. Since most individuals can recover without medical intervention, the body's immune system can effectively combat and eliminate various pathogens.

This means that different pathogens, such as bacteria, viruses, or parasites, can cause gastrointestinal diseases without necessarily causing severe harm or fatalities. This flexibility allows for a diverse range of pathogens to thrive and cause gastrointestinal diseases in humans, leading to the observed variety of causative agents.

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in what direction do protons flow during chemiosmosis in chloroplasts? group of answer choices from the matrix into the stroma from the stroma into the cytosol from the thylakoid space to into the stroma from the intermembrane space into the stroma from the stroma into the thylakoid space

Answers

Direction in which protons flow during chemiosmosis in chloroplasts are : from the stroma into the thylakoid space.

Where do protons flow during chemiosmosis in chloroplasts?

The chemiosmotic process in chloroplasts occurs during photosynthesis.  The energy of electron is used to pump proton from stroma into the thylakoid lumen and when protons move back to stroma then they pass through ATP synthase.

The process of moving ions to the other side of a biological membrane is known as chemiosmosis.

Electrochemical gradient is generated in chemiosmosis which is used to drive ATP synthesis. During this process, hydrogen ions get collected in the thylakoid membranes.

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After cytokinesis what phase do cells enter?

Answers

Answer:

After Cytokinesis, the cells return to Interphase

An unknown specimen was grown on Indole media. Based on your observation of this specimen choose the appropriate statements.
A. This test is a part of the IMViC panel of tests
B. The organism tested converts tryptophan to indole.
C. This media is inoculated by stabbing the agar in the tube.
D. This is a picture of a negative test result.
E. This is a picture of a positive test result.
F. The organism tested fermented indole.

Answers

Here are the appropriate statements about an unknown specimen grown on Indole media based on your observation: B. The organism tested converts tryptophan to indole.C. This media is inoculated by stabbing the agar in the tube.E. This is a picture of a positive test result.F. The organism tested fermented indole.

The indole test is used to determine an organism's ability to decompose the amino acid tryptophan into indole. The indole production is detected by adding Kovac's reagent, which contains p-dimethylaminobenzaldehyde, to the medium after incubation.

Tryptophan is an amino acid that is the precursor to indole production in this test. The amino acid tryptophan is a prerequisite for indole production. It is for this reason that organisms that can break down tryptophan into indole are positive.

This is the appropriate response to the student's question:

An unknown specimen was grown on Indole media. Based on your observation of this specimen choose the appropriate statements. B. The organism tested converts tryptophan to indole.C. This media is inoculated by stabbing the agar in the tube.E. This is a picture of a positive test result.F. The organism tested fermented indole.

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Which of the following is an example of how an organism depends on Earth's natural resources for survival?
A.
Humans grow corn and wheat as food sources.
B.
Beavers use tree branches to build dams and shelters.
C.
Plants take in nutrients and groundwater from the soil.
D.
all of these

Answers

Answer: D.
Explanation: They’re all using earth’s resources.

The differences among a species, like different bird beaks or different fur colors, are called.

Answers

Answer:The differences between the species of animals, such as the beaks of different birds, are called genes.

Explanation:

describe the major plant tissues in terms of their cell specificities locations and functions

Answers

Plant tissues refers to the collection of specialized or similar cells which perform an organized function for the plant. Plant tissues are specific in their actions and can sometimes combine to form organs such as  flowers, leaves, stems and roots.

What are Plant Tissues?

Plant tissues are similar cells that enable a plant to perform its functions. There are three main types of plant tissues and they include the following;

Dermal TissueVascular TissueGround Tissue

The Dermal tissue covers and protects the plant and contributes to its structural integrity. In order to prevent water loss, the  Dermal tissue of  stems and leaves is covered by a waxy cuticle.

  The Vascular tissues serves the function of transporting water, minerals, and sugars to different parts of the plant. The Vascular tissue is made of two specialized conducting tissues, the xylem and phloem.

The function of the xylem is to transport water and  nutrients from the roots to different parts of the plant. The Phloem tissue transports organic compounds from the site of photosynthesis to other parts of the plant

The Ground tissues serves as a site for photosynthesis. It is also responsible for providing a supporting matrix for the vascular tissue, and helps to store water and sugars.

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What is the primary source of energy in a food chain?

oxygen
sun
carbon dioxide
water

Answers

The Sun is the primary food source of energy in a food chain.

Answer:

The sun is the primary source of energy in a food chain.

Explanation:

By having sun light shining directly onto plants, it causes the plants to produce chemical energy that is able to sustain all their cellular functions.

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how different parts of the brain produces different types of
action potentials that results in different brain function like
hearing, language learning?

Answers

The production of different action potentials in different parts of the brain is important for specific functions. This specialization allows for complex cognitive processes such as hearing and language learning.

The brain is a complex organ composed of different regions, each responsible for specific functions. The production of action potentials, which are electrical impulses that transmit information within neurons, varies in different parts of the brain and contributes to the diverse brain functions observed, such as hearing and language learning.

For example, in the auditory cortex, which is involved in processing sound, specialized neurons receive input from the ears and generate action potentials in response to specific sound frequencies. These action potentials are then transmitted to other regions of the brain involved in higher-level auditory processing, allowing us to perceive and interpret sounds.

Similarly, language learning involves multiple brain areas, including the Broca's area and Wernicke's area. These regions coordinate the production and comprehension of language, respectively. The generation of action potentials in specific circuits within these areas enables the encoding and decoding of linguistic information, allowing for effective communication.

The diversity of action potentials in different brain regions arises from the unique connectivity and specialized functions of neurons within those areas. Neurons have distinct molecular and structural characteristics that determine their firing properties, which ultimately contribute to the specific brain functions they support.

In conclusion, the production of different types of action potentials in different parts of the brain is crucial for the specific functions exhibited by those regions. The variations in action potential generation allow for the specialization of brain areas and the complex processes involved in hearing, language learning, and other cognitive functions.

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If my cultures are suffering severely due to alkaloid production and accumulation in the medium. In that case, how can i overcome this problem?

Answers

Explanation:

Alkaloids are essentially natural compounds, and can mostly be used for pharmaceutical purposes. Natural habitats of different alkaloid plants have been destroyed for  cultivated.

Many alkaloids are pharmacologically active and are useful as a message for several decades because a wide range of species, such as animals and bacteria, produce them.

Secondary and accumulating metabolites are related to different cell types such as epidermis endodermis pericycle phloem parenchyma, components, accompanying cells etc.

What is one thing viruses all have in common?

A) Nucleus
B) Genetic Material
C) Cell Wall
D) Carbohydrate

Answers

Answer:

B) Genetic Material

Explanation:

Just did this lesson on Eg 2020

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After an ionic bond is formed, what is the charge of the atom that gained an electron?

Answers

Answer: Negative

Explanation:

This is called an anion. Whenever an atom gains a electron, it becomes negative. When an atom loses an electron, it becomes postitive. Positive atoms are called cation.

After an ionic bond is formed, the charge of the atom that gained an electron will be negative.

What is an ionic bond?

An ionic bond, also widely recognized as an electrovalent bond, is a category of interconnection established by the electrostatic attraction of ions with opposing charge in a chemical substance.

When the valence (outermost) electrons of one atom are permanently transferred to another atom, a bond is formed.

An ionic bond is formed between a metal and a nonmetal, whereas a covalent bond is formed between two nonmetals.

An ionic bond is formed by the complete transfer of electrons from one atom to another. When an atom loses one or more electrons, it becomes a cation, or positively charged ion.

When an atom gains one or more electrons, it becomes an anion, a negatively charged ion.

Thus, the atom is negatively charged as it gained electron.

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True or False?
The transfer of heat from one body to another takes place only when there is a temperature difference between the bodies

Answers

Answer: True

Explanation: heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder.

what's the function of pancreas?






(have a wonderful day/night/afternoon everyone^_^​
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)

Answers

Answer:

The pancreas is a glandular organ in the digestive system and endocrine system located in the abdominal cavity behind the stomach. It is an endocrine gland producing several important hormones, including insulin, glucagon, somatostatin, and pancreatic polypeptide, all of which circulate in the blood.

Explanation:

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Answer:

During digestion, your pancreas makes pancreatic juices called enzymes. These enzymes break down sugars, fats, and starches. Your pancreas also helps your digestive system by making hormones. These are chemical messengers that travel through your blood.

Explanation:

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