Which of the following spontaneous changes in DNA structure/sequence generally results from strand slippage?
a) deamination of cytosine
b) tautomeric shift that changes the structure of a base
c) expansion of trinucleotide repeat sequences
d) depurination

Answers

Answer 1

The spontaneous change in DNA structure that generally results from strand slippage is expansion of trinucleotide repeat sequences, which is option C.

Therefore, the correct option is c). Deamination of cytosine, tautomeric shift that changes the structure of a base, and depurination are spontaneous changes that can occur in DNA, but they are not specifically related to strand slippage occurring in DNA structure.

Deoxyribonucleic acid (DNA) has a double helix structure that resembles a twisted ladder or spiral staircase. It is made up of two very long strands of nucleotides. Deoxyribose, a phosphate group, and one of the nitrogenous bases (adenine, thymine, cytosine, or guanine) are all components of each nucleotide. The complementary bases adenine (A) and thymine (T) and cytosine (C) and guanine (G) form hydrogen bonds that hold the two strands together. The ladder's rungs are made possible by this base combination. The sides of the ladder are made of the sugar-phosphate backbone. With the sequence of bases encoding the instructions for the growth and operation of living creatures, DNA's structure allows it to store and transfer genetic information.


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Related Questions

Why is dissolving salt in water a physical change?

Answers

Dissolving a solid in liquid, such as table salt in water, is a physical change because only the state of the matter has changed. Physical changes can often be reversed. Allowing the water to evaporate will return the salt to a solid state. ... It has not combined with the water to cause a chemical reaction.

Answer:

Allowing the water to evaporate will return the salt to a solid state. ... It has not combined with the water to cause a chemical reaction.

Chytrids have some unique characteristics that are different from the other groups of fungi. What characteristics make them unique? Check all that apply.

Their spores are produced in sac-shaped structures.
Their spores are produced in club-shaped structures.
Their reproductive cells have flagella.
Their reproductive cells have several nuclei.
They live in wet places.
They live in dry places.

Answers

Answer:

3 & 5 or C & E

Explanation:

❌ Their spores are produced in sac-shaped structures.

❌Their spores are produced in club-shaped structures.

✔ Their reproductive cells have flagella.

❌ Their reproductive cells have several nuclei.

✔ They live in wet places.

❌ They live in dry places.

edge 2021

Answer:

3 & 5 or C & E

Explanation:

✔ Their reproductive cells have flagella

✔ They live in wet places.

Time4Learning

how do you determine amino acid sequencing

Answers

Answer:

there are two main methods used to find the amino acid sequences of proteins. Mass spectrometry is the most common method in use today because of its ease of use. Edman degradation using a protein sequenator is the second method, which is most useful if the N-terminus of a protein needs to be characterized.

Explanation:

This is the answer. Hope it helps

List 5 ways that phosphorous is essential to plants & animal life on Earth.

Answers

Answer:

El fósforo (P) es esencial en todas las formas de vida conocidas, dado que constituye un elemento clave en muchos procesos fisiológicos y bioquímicos. Se trata de un componente presente en todas las células de todos los organismos vivos. El fósforo aparece en estructuras complejas de ADN y ARN que, al contener y codificar la información genética, controlan todos los procesos biológicos en las plantas. Además, el fósforo es un componente fundamental del sistema de transporte de energía en todas las células.

El fósforo no aparece aislado en la naturaleza, sino que se encuentra siempre combinado con otros elementos con los que forma los fosfatos que pueden ser muy complejos y presentarse bajo distintas formas en los suelos, el agua, las plantas, los animales y el hombre. Por tanto, se utilizará la palabra “fósforo” de forma genérica en lugar de identificar el fosfato concreto, aunque en la mayoría de los casos, se ofrecerán valores numéricos como P2O5 .

Hasta una época relativamente reciente, el crecimiento de las plantas y de los animales, y por extensión, la productividad de la agricultura, se veían limitados por la falta de fósforo, ya que anualmente solo se disponía de unas pequeñas cantidades de las rocas y de los minerales del suelo gracias a la acción erosiva de los elementos. Cuando los agricultores comenzaron a utilizar fertilizantes en el siglo XIX, los niveles de fósforo disponible para las plantas en muchos suelos eran todavía muy bajos. Por eso, hasta que no se comenzó a aplicar fósforo, la respuesta a otros nutrientes, especialmente al nitrógeno, era muy pequeña, es decir, que el fósforo era el nutriente limitante del crecimiento de las cosechas.

El fósforo desempeña un papel fundamental en la fotosíntesis, proceso por el que las plantas absorben la energía del sol para sintetizar moléculas de carbohidratos, es decir, de azúcares, que son transportados a los órganos de almacenamiento de las plantas. Este proceso es esencial para todas las formas de vida y constituye el primer paso en la cadena para producir alimentos, piensos y fibras.

Las raíces de las plantas absorben el fósforo del agua presente en el suelo y que se denomina solución acuosa del suelo.

Sin embargo, los compuestos de fósforo no son muy solubles y, como consecuencia, la cantidad de fósforo que la planta puede tomar de la solución acuosa del suelo tiende a ser mucho menor de la que necesita, especialmente cuando la planta se encuentra en un periodo de fuerte crecimiento. Por eso, el fósforo de la solución acuosa del suelo debería reponerse con una frecuencia de diez veces al día en esos periodos.

En un día, una cosecha de rápido crecimiento puede absorber el equivalente a cerca de 2,5 kg de P2O5 por hectárea (una hectárea equivale a 10.000 m2 ). De esto se deduce, por tanto, que es necesario que existan reservas adecuadas de fósforo en el suelo y que esas reservas puedan estar disponibles con facilidad. La mayoría de los suelos no abonados contienen una cantidad demasiado pequeña de fósforo, fácilmente aprovechable, para dar respuesta a la gran demanda de las cosechas, en especial durante ciertos periodos del ciclo de crecimiento. De ahí, que se imponga la necesidad de aplicar fertilizantes que contengan fósforo.

La carencia de fósforo afecta no solo al crecimiento de la planta y al desarrollo y rendimiento de la cosecha, sino también a la calidad del fruto y a la formación de las semillas. Asimismo, la carencia de fósforo puede retrasar la maduración de las cosechas, con lo que se retrasa la recolección y se pone en riesgo la calidad del producto.

Explanation:

What are the two factors that ultimately decide what organisms can live in an area?


1 temperature and oxygen


2food and water


3food and oxygen


4water and oxygen


5water and temperature

Answers

Answer: 2. Food and water

Explanation: Good luck! :D

In the biosphere, _________________ is an important element in ATP (Adenosine triphosphate) and DNA (Deoxyribonucleic acid).

A. Phosphorus
B. Phosphate
C. Photosynthesis
D. Photons

Answers

C would be your answer

In the biosphere, phosphorus is an important element in ATP (Adenosine triphosphate) and DNA (Deoxyribonucleic Acid), which is in Option A, as phosphorus is a crucial element in the biosphere as it is a component of both ATP (Adenosine triphosphate) and DNA (Deoxyribonucleic Acid).

What is phosphorus?

Phosphorus is essential for the formation of the backbone of the DNA molecule, where it links the sugar and nitrogenous base components of the nucleotides. The phosphate group of each nucleotide forms a covalent bond with the sugar molecule of the adjacent nucleotide, forming a long, stable chain of nucleotides that make up the DNA molecule. The DNA molecule is responsible for transmitting genetic information from parent to offspring and serves as a blueprint for the development and function of living organisms.

Hence, in the biosphere, phosphorus is an important element in ATP (adenosine triphosphate) and DNA (deoxyribonucleic acid), which are in Option A.

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(GIVING BRAINLIEST!!)

Due to altitude, you might find snow here during the summer months.

A) By a lake
B) In the forest
C) In the ocean
D) On a mountain

Answers

Answer:

D

Explanation:

Since the temperature is colder at a higher altitide you can use that knowledge to think about how high these places are relative to eachother. You can then take the highest one for your answer

D

Higher up it is colder

¿Qué receptores se estimulan al oler la rosa? Explica el proceso a través del cual se percibe el aroma de la rosa.

Answers

Answer:

receptores olfativos especializados localizados en el epitelio olfatorio de la mucosa nasal

Explanation:

Las neuronas receptoras del olor se denominan receptores olfatorios. Los receptores olfatorios son células especializadas capaces de percibir miles de sustancias químicas diferentes y decodificar la información en miles de olores distintos. Estos receptores se localizan en la mucosa nasal de las fosas nasales. En el caso del olor a rosa, como así también cualquier otro olor, las sustancias químicas responsables del olor se dirigen al epitelio olfatorio de la mucosa nasal, donde se unen a receptores específicos localizados sobre filamentos sensoriales (cilios) en las membranas celulares de las neuronas especializadas. La unión desencadena una respuesta en la células neuronales, es decir, una descarga eléctrica que se propaga desde las fosas nasales hasta el cerebro, el cual decodifica la información (el olor) en una región conocida como bulbo olfatorio.

To where does carbon dioxide go?

Answers

Some stays in the air domes taken up by plants

define and understand the following terms:(1)Phylum (2)Class (3)Family (4)Order (5)Genus

Answers

Explanation:

phyllum: group group of related classes

classes: group of related order

family: a group of related genera (genus)

order: group of related families

genus: group of related species

Answer:

(i) Phylum

The phylum is second highest unit of classification after Kingdom. It includes one or more related classes of animals. In plants, instead of phylum, the term ‘division’ is used.

(ii) Class

The class is a taxonomic group consisting of one or more related orders. For example, the class, Mammalia, includes many orders like Primata (Man), Carnivora (tiger) etc.

(iii) Family

Family is a taxonomic group containing one or more related genera, eg., Family hominidae contains apes, monkeys and man. In plants, families are categorized on the basis of vegetative and reproductive features.

(iv) Order

Order is a taxonomic group containing one or more families. For example, the order, carnivora, includes many families.

(v) Genus

Genus is a taxonomic group including closely related species. For example, the genus, Solanum, includes many species such as nigrum, melongena, tuberosum, etc.

I hope it's helpful!

Can some one help???

Answers

Answer:

what is it you need

Explanation:

the rest of the world uses celsius maybe

which of these presents ab ethical issue associated with genetic testing on humans?

Answers

Answer:

In health care, genetic testing presents several ethical challenges. Legislation is in place or is being developed to limit access to genetic information, so that employers or insurers cannot discriminate against individuals because of their genotypes.

Explanation:

Answer:

The answer choices were:

Explanation:

A. Genetic testing could cause harmful mutations.

 

B. Genetic testing could improve the diagnosis of disease.

 

C. Genetic testing could cause job discrimination by revealing health risks.  

 

D. Genetic testing could cause ecosystem damage by accelerating evolution.

Which organelles must work together to provide food and energy to a plant cell?

Answers

Answer:

Cells are membrane-bound groups of organelles that work together to allow it to function. Some of the major organelles include the nucleus, mitochondria, lysosomes, the endoplasmic reticulum, and the Golgi apparatus. Plant cells also include chloroplasts, which are responsible for photosynthesis.

Explanation:

Hope this helps have a wonderful day! <3

What is involuntary muscle​

Answers

Answer:

involuntary muscles can be defined as the muscles that functions or contracts without conscious control and are controlled by the autonomic nervous system.

Answer:

involuntary: A muscle movement not under conscious control e.g. the beating of the heart.

where is the gene found?
what's the function of the gene?
what's the structure of the gene?

Answers

Answer:

gene found in the Dna its in the nucleus

What does the term mutation mean in regards to human genetics?

Answers

Answer:

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses.

Explanation:

A mutation is a change in a DNA sequence

What is the yellow structure, and what role does it play in a cell??

Answers

Answer:

Storage of fat

Explanation:

I am very sorry if I'm wrong ✿✿✿

How would you define informed consent?
[Type answer here]

Answers

Informed consent is permission granted in the knowledge of the possible consequences, typically that which is given by a patient to a doctor for treatment with full knowledge of the possible risks and benefits.

the nose produces a sticky material called mucus, which is moistens the air and traps particles true or false

Answers

Answer:

True

Explanation:

It traps the particles and stops them from reaching your lungs and harming them.

Why would so many earthquakes originate along the slab of lithosphere that is descending into the mantle?

Answers

Answer:

As the slab descends into the mantle, rheology changes cause the plate to bend and deform, and generates these earthquakes. The trend of such events can be seen in cross-sections of subduction zones

Explanation:

Yalll are smart right well I am give you 50 POINT lol you have to do this correctly :3

Answers

Answer:

Top to bottom: 5, 3, 2, 4, 1

Explanation:

I'll take a shot! Here I go!

5 (Sun) = top; we get all our energy from the sun

Then 3 (plants); plants can convert sunlight into food for themselves via photosynthesis

Then 2; we're talking about herbivores that eat plants, right?

Then 4; these are probably~ carnivores

Then 1; when a living thing dies, these guys consume the corpse and return the energy to the ecosystem

Have a great day!

Answer:

Sun

Primary Producers

Primary Consumers

Secondary Consumers

Decomposers

Explanation:

Energy coming from the sun is converted into chemical energy (or glucose) by plants. Primary consumers (herbivores) eat those plants and gain the energy they produced. Secondary consumers (carnivores probably) eat the primary consumers and gain that energy. Then they die and decomposers (fungi) return their energy into the soil.

Which kind of worm is sometimes used to prevent blood clots?

planarian
leech
fluke
hookworm

Answers

Answer:

Leech

Explanation:

leeches suck our blood so when a blood clot appears they can fix it by sucking our blood so the blood does not effect.

Answer:

a leech i got it correct on edu!

Explanation:

To become larger in size in a living thing is called

Answers

Answer:

Growing of organisms is the process of being larger in size

Answer:

Growth or u can say growing

PLEASE ANSWER ASAPP!! WILL GIVE BRAINLIEST
Match the following peer pressure tactics to the definitions. (unspoken pressure, rejection, insults, and reasoning)

Communicating verbally and nonverbally

Attempting to convince peers to alter their beliefs

Excluding or ignoring

Dressing a certain way or participating in a certain activity

Answers

Answer:

excluding or ignoring= rejection

Dressing a certain way or participating in a certain activity= unspoken pressure

Attempting to convince peers to alter their beliefs= pressure

Communicating verbally and nonverbally= insults (?)

All geologic eras are about the same number of years.
True or false

Answers

Answer:

false

Explanation:

Please help me i dont understand how this stuff works

Answers

Answer:

Balloon 2

Explanation:

Opposite charges (positive/negative) attract, like charges (positive/positive or negative/negative) repel.

Have a great day!

Answer:

the second one

Explanation:

opposites charges attract so a negative charge is attracted to a positive charge and the second balloon has the most positive charge

3. The picture on the right shows the sequence of nitrogen bases on part
of a DNA strand. Which string of letters below represents the nitrogen
bases in the order they would pair up with this part of the DNA strand?
A. C-T-G-C-A
B. G-A-C-G-T
C. A-G-T-A-C
(the picture is T-C-A-T-G)

Answers

Answer: C

Explanation: Thymine pairs with Adenine and Cytosine pairs with Guanine.

PLS I RLLY NEED HELP
What are the potential advantages and disadvantages of a major shift from the hard or traditional path of energy development to the soft or visionary path?


(These were the corresponding textbook pages, if needed) Please read the following from the textbook Environmental Science:

7th Edition - Chapter 17

9th Edition - Chapter 14

Answers

It’s terms in the set 10

Answer:

Advantages of following the soft path, the argument here is alternative sources of power such as hydropower, geothermal energy , wind energy , and photovoltaic cells must be developed. This provides a alternative source to remain in a healthy environment and also function as the society we currently live in using the hard path.  Disadvantages of following the hard path result with future generations fearing over the irreversible damage of climate change and the damage done to our atmosphere. The hard path argue that we should continue to operate in the future as we have in the past, except more efficiently. This is close to impossible and will only continue the negative effects the hard path( the path we have been following) results in. The major shift determines the outcome of this world, the futures worries or reliefs and ultimately the survival of humans.

Explanation:

I got 100% on Edge

How is passive transport different from active transport?

A) Passive transport is substances moving from HIGH concentration to LOW concentration.
B) Passive transport requires energy input.
C)Passive transport happens regardless of concentration gradient.
D) Passive transport is substances moving from LOW concentration to HIGH concentration.


ASAP

Answers

Answer:

A

Explanation:

Passive transport does not require energy. The substances follow the concentration gradient, meaning they go from high to low. Active transport goes against the concentration gradient. Substances go from low to high, so it requires energy.

Which mealworm behaviors were reflexes

Answers

Being hungry or having a dry mouth is an instinctive behavior in humans. 2 Which mealworm behaviors were reflexes? Why? The ones where the mealworm was touched by feathers or metal pins were reflex behaviors, because they were a stimulus, and the mealworm had no control over its reaction.
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