many cancer cells shut down expression of the bax or bak gene. how will the cancer cell benefit from this cellular change?
Answers
The cancer cell will profit from this biological alteration since the mitochondria will be less likely to produce cytochrome C, preventing apoptosis.
Contrary to popular belief, healthy mitochondria are necessary for the growth of cancer cells. Cancer cells frequently harbor mutations in the mitochondrial genes, but these abnormalities do not deactivate the mitochondrial energy metabolism; rather, they change the cytochrome C condition of the mitochondria's bioenergetic and biosynthetic processes. In mammalian cells, mitochondria are essential for initiating apoptosis. Members of the cytochrome C control how proteins are released from the area between the inner and outer membranes of the mitochondria.
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Related Questions
What is an Example of Structural Adaptation for Reproduction with Plants?
Flexible Stems
Spines Development
Deep Root Systems
Ballistic Seed-Dispersal
Answers
Answer:
An example of structural adaptation for reproduction with plants is c. Deep root systems.
Deep root systems are a structural adaptation that allows plants to access water and nutrients from deeper layers of soil, increasing their chances of survival in dry or nutrient-poor environments. These deep roots also allow the plant to establish itself firmly in the soil, increasing its chances of reproducing successfully.
Option a. Flexible stems, b. Spines development and d. Ballistic seed-dispersal are not structural adaptations related to reproduction, but other strategies that plants use to survive in different environments. Flexible stems allow plants to bend and sway in the wind without breaking, spines development protect plants from herbivores and Ballistic seed-dispersal is a way for plants to scatter their seeds away from the parent plant.
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The evolution of the peppered moth over the last two hundred years has been studied in detail. Originally, the vast majority of peppered moths had light colouration, which effectively camouflaged them against the light-coloured trees and lichens upon which they rested. However, due to widespread pollution during the Industrial Revolution in England, many of the lichens died out, and the trees which peppered moths rested on became blackened by soot, causing most of the light- coloured moths to die off due to predation. At the same time, the dark-coloured moths flourished because of their ability to hide on the darkened trees. Since then, with improved environmental standards, light-colored peppered moths have again become common, but the dramatic change in the peppered moth's population has remained a subject of much interest and study Which type of selection is illustrated by the peppered moth's during the Industrial Revolution?
Answers
Answer:
Directional selection
Explanation:
The phenotype of individuals and the environment where they live, interact and determines the genes´ destiny in space and time. The result of this interaction and the gene destiny is Natural Selection. Natural selection selects beneficial alleles and increases their frequency in the population.
Among the different types of natural selection, we can find "directional selection".
Directional selection increases in the proportion of individuals with an extreme phenotypic trait, in this case, dark moths color. This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.
In the exposed example, the moth population must be adapted to its environment. The coloration is related to survival strategies. In the beginning, they expressed light coloration useful to camouflage and to avoid predators while resting on their lighted-substrate (lichens and light-colored trees). After the severe environmental impact of the Industrial Revolution, the environment changed. This change acted as a selective pressure. Lichens died, and trees became darker. Light moths were exposed and died after predation. Probably at one point of the evolution, the gene for color mutated, and dark-colored moths appeared. By natural selection, the mutation got fixed. This example reflects directional selection because the population turned from light color to dark color.
In the attached files you will find two graphs expressing directional selection.
Consider a variant of Hotelling’s model in which there are 3 candidates and each candidate has the
option of staying out of the race, which is better than losing and worse than tying for first place.
Less than 1/3 of the citizen’s favorite positions are equal to the median favorite position (m).
Answers
The statement suggests that less than one-third of the citizens' favorite positions are equal to the median favorite position.
Hotelling's model is a spatial model of political competition where candidates position themselves along a one-dimensional policy space to maximize their vote share. In this variant, with the inclusion of the option to stay out of the race, candidates have the opportunity to avoid losing by not participating. However, staying out of the race is still considered less favorable than tying for first place.
The statement indicates that less than one-third of the citizens' favorite positions are equal to the median favorite position (m). This suggests that there is a concentration of citizen preferences on positions other than the median. The specific distribution of citizen preferences and its implications would depend on the exact positioning of the candidates and the nature of voter behavior.
Overall, this variant of Hotelling's model introduces an additional option for candidates to stay out of the race, which affects the dynamics of competition and the distribution of citizen preferences. The statement about the concentration of citizen preferences highlights a departure from a symmetric distribution and adds complexity to the strategic choices and outcomes in the model.
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Explain two ways in which mitosis is biological significant
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Mitosis is a way of making more cells that are genetically the same as the parent cell. It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.
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Was the Virginia Tech soil enhancement research project a success?
im dying on this queston help pls
Answers
In which organism can cell walls be found?
Answers
Answer:
Cell walls are structures that surround and protect the cells of some organisms. According to the web page context, cell walls can be found in:
PlantsFungiBacteriaSome protistsCell walls are not found in animals or most protists.
in reactions mediated by protein kinases what does phosphorylation of successive proteins ddo to drive the reaction
Answers
Phosphorylation of successive proteins drives the reaction by causing the proteins to change shape. The proteins can then bind to each other, or to other molecules, more tightly.
This increased binding affinity allows the proteins to work together more efficiently to drive the reaction.Protein kinases are enzymes that phosphorylate other proteins. Phosphorylation is the addition of a phosphate group to a protein. This modification can change the activity of the protein. Protein kinases are important in many cellular processes, including cell division, cell signaling, and cell death.
Protein kinases can phosphorylate multiple proteins in a cascade, which is a series of reactions in which each reaction is catalyzed by a different enzyme. The phosphorylation of successive proteins in a cascade can amplify the signal that is being transmitted.
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Identify the biomolecule
Answers
Answer:
Protein biomolecule
Explanation:
Biomolecules, also called biological molecule any of numerous substances that are produced by cells and living organisms.Biomolecules have a wide range of sizes and structures and perform a vast array of functions. The four major types of biomolecules are carbohydrates,lipids nucleic acids,and proteins.
If someone adds thousands of small fish to a lake, how would the number of big fish change?
Answers
Answer:
The number of big fish would increase
Explanation:
The amount of food for the big fish in the lake would increase, allowing the amount of big fish to increase until another factor (such as space or disease) would stop that increase in population.
Atom A has six protons , five neutrons and five electrons. Atom B five protons , six neutrons, and five electrons . Are atoms A and B of the same element ?
1. no, because they do not have the same number of protons
2. no, because they do not have the same number of neutrons
3. yes , because they have the same number of electrons
4. yes , because both have 16 protons , neutrons, and electrons combined
Answers
Answer:
no, because they do not have the same number of protons
Explanation:
No of protons represents atomic number which decides the characteristics of an atom . Two atoms having same number of protons but different number of neutrons are same element . They differ only in some physical characteristics . They are called isotopes . In respect of chemical properties they are same . In a neutral element number of protons and number of electrons are same . But in some case number of electrons may differ . In that case they form ions of the element . In positive ion , number of electrons is shorter than number of protons .
In the present case , atom A and atom B differ in respect of number of protons so they represent different element .
State three factors affecting breathing rate in human beings
Answers
Answer: age, smoking habits, and size/weight
Explanation:
The older you get, the weaker you'll be, so your breathing will be effected.
If you smoke then your lungs will be effected which will ultimately have an affect your breathing.
If you're really heavy (ex. Over weight) then you will get tired more easily, which will effect your breathing rate.
Sorry did not mean to do this!
Answers
I've done this too lol it's fine
In eukaryotes, which component is specific to the synthesis of only one type of protein?.
Answers
In eukaryotes, Messenger RNA is specific to the synthesis of only one type of protein.
Messenger RNA or also known as mRNA is a single stranded RNA molecule and it carries genetic information of DNA to convert into proteins. It is created when enzyme (RNA polymerase) converts the gene into primary transcript mRNA.
The genetic code taken by mRNA is first converted to amino acids which then is used to synthesize protein. Genetic information of DNA is stored in mRNA in the sequence of nucleotides which are then arranged into codons. Each Codon is specific for an amino acid but the stop codon is used to stop the protein synthesis.
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The __________ is the visible aspect of characteristics passed from parent to offspring
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The traits is the visible aspect of characteristics passed from parent to offspring.
Through the process of heredity, organisms inherit traits from their parents. Traits are the name for these features. Every person is distinct because they each possess a special set of characteristics. Inherited qualities are those that a parent passes on to its offspring during the fertilization process. The way the genetic features are interpreted is what causes the distinction between heredity and inheritance. The term "heredity" refers to the genetic traits that parents pass on to their children; it is frequently referred to as "genetics."Through their genes, parents transmit features or qualities to their offspring, such as eye color and blood type. There are several illnesses and medical disorders that can be genetically handed down. One trait can occasionally take in numerous versions. For instance, blood type can be A, B, AB or O.learn more about traits here: https://brainly.com/question/930507
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prior to the mongolian invasions which occurred between the 13th and 16th centuries, the frequency of blood type b across europe was close to zero, based on genetic analyses of dna extracted from ancient skeletal remains. the frequency of blood type b among the mongols was relatively high. today, we observe high frequencies of blood type b in the eastern european countries and a gradual decrease in the frequency of blood type b as one moves from the eastern european countries to the western european countries, such as france and england. which process is responsible for the resulting pattern?
Answers
The resulting pattern of high frequencies of blood type B in Eastern Europe gradually decreasing as one moves towards Western Europe, such as France and England, is likely due to the process of gene flow.
The Mongolian invasions, which brought individuals with a high frequency of blood type B, led to gene flow into Eastern European populations. Over time, this gene flow has spread the B allele into the surrounding populations, leading to the observed increase in the frequency of blood type B in Eastern European countries. As gene flow decreases toward the West, the frequency of blood type B also decreases, resulting in a gradual decrease in frequency observed as one moves from Eastern Europe toward Western Europe.
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A mating between a true-breeding purple-flowered pea plant and a true-breeding white-flowered pea plant would produce a:______.A) True-breeding variety.B) Inbred organism.C) F1 generation.D) P generation.E) F2generation.
Answers
Answer:
The correct answer would be - option C) F1 generation
Explanation:
The true breeding varieties are the offspring that have same phenotype as the the parents and contain same allele for a specific trait. When there is mating between two true breeding varieties offspring would be hybrid.
P generations is the generation of the parents in other words, matting in between parents known as p generation whereas the very first generation after p generation is known as F1 generation or filial generation and also the hybrid of P generation.
Thus, the correct answer is option C). F1 generation
_____1. Biome
A. Ecosystem B. Evergreen C. Taiga D. Tundra
2. Desert
A. Cactus B. Oldest Biome C. Tundra D. Desert
3. Tundra
A. Deciduous B. Oldest Biome C. Arctic D. Tropical Rain
4. Fires
A. Evergreen B. Savannah C. Arctic D. Taiga
5. Treeless
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\( _______________________________\)
See Below ~
1.A.
2.B.
3.A.
4.B.
5.?
\( ________________________________\)
Circle the letter of each sentence that is true about prokaryotes.
a. They grow and reproduce.
b. Many are large, multicellular organisms.
c. They are more complex than cells of eukaryotes.
d. They have cell membranes and cytoplasm.
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Substances with a low pH and a high concentration of hydrogen ions is
Answers
Answer:
substances with low pH and a high concentration of hydrogen ions is called an acid.
a farmer wants to grow spinach as quickly and cheaply as possible in winter. At what temperature should he keep his
green house in order to grow the spinach as quickly and cheaply
as possible? Explain your answer
i need the temp of the green house to grow spinach fastest and cheapest
Answers
Answer:
50⁰ F to 60⁰ F or 10°C to 15.56°C
Which statement describes the relationship between mass and gravity?
Answers
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What happens during the process of translation?
a. the cell uses information from messenger rna to produce proteins.
b. copies of dna molecules are made.
c. transfer rna is made from messenger rna.
d. messenger rna is made from dna
Answers
Answer: when in doubt ask quizlet
Explanation:
(quizlet actually ahs full answer charts for you connexus students
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The chemical equation shown represents photosynthesis.
Carbon dioxide plus A plus light with a right pointing arrow towards B plus oxygen. The arrow has an x above it.
X represents a substance in a plant involved in photosynthesis. What is its role?
It stores chemical energy for plants and animals.
It traps light energy and converts it into chemical energy.
It combines with carbon dioxide and light to form glucose.
It combines with carbon dioxide and light to form hydrogen.
Answers
The X, the substance represented in the chemical equation, plays a crucial role in photosynthesis by trapping light energy and converting it into chemical energy. The correct answer is option B.
X, the substance represented in the chemical equation, plays a crucial role in photosynthesis by trapping light energy and converting it into chemical energy. This substance is known as chlorophyll, a pigment found in plant cells.Chlorophyll is responsible for absorbing light energy from the sun during the process of photosynthesis. It is located in specialized structures called chloroplasts within plant cells. The chlorophyll molecules absorb light energy from the sun's rays, specifically in the blue and red regions of the electromagnetic spectrum.This absorbed light energy is then used to power the chemical reactions that convert carbon dioxide and water into glucose and oxygen. Through a series of complex biochemical reactions, chlorophyll facilitates the conversion of light energy into chemical energy, which is stored in the form of glucose.In summary, X, which represents chlorophyll, traps light energy and enables the conversion of carbon dioxide and water into glucose during photosynthesis.The correct answer is option B.For more questions on photosynthesis
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what does a weak color signal in competitive elisa represent?
Less antigen retained on the well. Less antigen in the sample. Less antigen in the sample and less antigen retained on the wall. More antigen in the sample.
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A weak color signal in competitive ELISA usually indicates that there is less antigen in the sample. This could be due to a variety of reasons, such as poor sample collection or handling, insufficient antigen concentration, or a weak immune response.
A weak signal can also be caused by less antigen retained on the well, which could be due to insufficient washing or an improper coating of the well. It is important to note that a weak signal does not necessarily mean that the sample is negative, as it could still contain a low concentration of the antigen of interest. Therefore, it is essential to interpret the results carefully and in conjunction with other clinical and laboratory findings. In summary, a weak color signal in competitive ELISA represents either less antigen in the sample, less antigen retained on the well, or a combination of both.
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When protons are actively transported across the cristae membrane in mitochondria to set up a proton gradient between the inter-membrane space and the mitochondrial matrix, this is referred to as___________________
Answers
Answer:
Explanation:
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Which two body systems must directly interact for vertebrate organisms to exchange gases?
F Skeletal system and muscular system
G Excretory system and reproductive system
H Circulatory system and respiratory system
3 Digestive system and immune system
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Tell me an operational definition for each underlined idea. You can do one, but the more you do the more points you get. Thank you!!!
Answers
Answer:
Dial Antibacterial Bar Soap.
(first one)
Energizer Ultimate Lithium: The longest-lasting AA battery.
(second one)
Bounty
(third one)
Explanation:
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If a property owner cuts less trees, how can they make more profit than a non-FSC certified owner?
Answers
By increasing the sustainability, FSC certified owner can make more profit
What is non-FSC certified owner?A property owner who cuts fewer trees may make more profit than a non-FSC certified owner in several ways:
Increased sustainability: By cutting fewer trees, the property owner is preserving forest resources and biodiversity, which can attract environmentally conscious consumers and increase the demand for their products.
Better reputation: FSC certification is an internationally recognized symbol of responsible forest management. By obtaining this certification, the property owner can improve their public image, increase their brand recognition, and increase consumer trust in their products.
Access to new markets: Many companies and governments now require their suppliers to source products from FSC certified forests. By becoming FSC certified, the property owner may gain access to new markets and customers, increasing their sales and profitability.
Reduced costs: By reducing the number of trees cut, the property owner may reduce the costs associated with logging and timber harvesting, such as transportation and processing expenses.
In summary, by cutting fewer trees and becoming FSC certified, a property owner can improve their sustainability, reputation, market access, and reduce costs, leading to increased profits.
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In oogenesis: Select one O a unequal cytoplasmic division results in a large egg and a smaller polar body. Ob which chromosomes are discarded in the polar body is random due to independent assortment. O c. the initial steps occur during fetal development Od less gametes are produced per cycle than spermatogenesis O e All of the above.
Answers
In oogenesis, the unequal cytoplasmic division results in a large egg and a smaller polar body, and the chromosomes discarded in the polar body are random due to independent assortment.
During oogenesis, the process of egg cell development in females, the cytoplasm divides unequally. This division results in the production of a large egg cell that contains most of the cytoplasm and resources necessary for embryonic development, while a smaller polar body is formed with minimal cytoplasm. This uneven division ensures that the resulting egg cell has enough nutrients and organelles to support fertilization and early embryonic development.
Additionally, the chromosomes discarded in the polar body are determined by the process of independent assortment. Independent assortment occurs during meiosis I, where homologous pairs of chromosomes align randomly along the equator of the cell, and their separation into daughter cells is independent of other chromosome pairs. As a result, the chromosomes that end up in the polar body are randomly selected from the maternal chromosomes, contributing to genetic diversity in offspring.
In contrast to oogenesis, spermatogenesis is the process of sperm cell development in males. Spermatogenesis produces four functional sperm cells from each precursor cell, while oogenesis only produces one mature egg cell per precursor cell. This means that less gametes are produced per cycle in oogenesis compared to spermatogenesis.
In summary, during oogenesis, unequal cytoplasmic division leads to the formation of a large egg cell and a smaller polar body, and the chromosomes discarded in the polar body are determined by independent assortment. Moreover, oogenesis produces fewer gametes per cycle compared to spermatogenesis.
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Help please. Im not sure which one it is
Answers
Answer:
Explanation:
i believe the answer would be cell 3