Answer:
means that both the necessary mRNAs must persist and there must be a low level of RNA-degrading enzymes present
Explanation:
Mature red blood cells (also known as erythrocytes) don't contain nuclei. The red blood cells that enter the bloodstream eject their nuclei in order to have more space for transporting hemoglobin, a protein whose main function is to bind molecular oxygen. Erythrocytes have a life span period of three (3) to four (4) months. During this period, the mRNA of the hemoglobin genes must remain intact in order to synthesize hemoglobin proteins (i.e., their subunits). Moreover, in mature red blood cells, the levels of the enzymes involved in the degradation of cytoplasmic mRNA (ribonucleases) must also be low to avoid bulk mRNA degradation.
Cheetahs have become an endangered species due to hunting and loss of their habitat. As a result, there is now very little variation in the traits within their small populations. Which of the following is a result of the limited variation in traits in today’s cheetah population compared to earlier cheetah populations that had greater variation in traits?
A. Cheetahs in current populations are more resistant to new diseases.
B. Cheetahs in current populations have better chances of survival today than they did in the past.
C. Cheetahs in current populations are less likely to become extinct.
D. Cheetahs in current populations are less likely to be able to adapt to environmental changes.
Answer:
Cheetahs in current populations are less likely to be able to adapt to environmental changes
Explanation:
i got the question wrong cuz some1 but im willing to help others this is the correct answer D is the correct answer:)
Cheetahs in current populations are less likely to be able to adapt to environmental changes. Therefore, option (D) is correct.
What is limited variation?Less possible combinations of characteristics indicates a lower level of genetic diversity within the population. Because of this, there may be fewer genetic variations available to supply potentially beneficial characteristics that can aid in the survival of the population. This can have a detrimental impact on the population's ability to adapt to changes in its environment, which can have negative effects.
Because there is less genetic variation in the current population of cheetahs, it is possible that they will have a reduced ability to adjust to changes in their environment, such as the appearance of new diseases, shifts in climate, or the loss of habitat. This might make the possibility of the population going extinct significantly more likely. Hence, the solution that you should select is option D.
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Scientists believe that there are three jeans what contribute to skin color in humans.
Which of these best describes the inheritance pattern of skin color?
A. Multiple allele in which offspring recessive three allele from each parent.
B. Multiple allele in which offspring recessive three allele from only one parent.
C. Polygenic in which offspring recessive three allele from each parent.
D. Polygenic in which offspring recessive three allele from only one parent.
Answer:
C. Polygenic in which offspring receive three allele from each parent.
Explanation:
In genetics, a polygenic inheritance is an inheritance that involves more than one gene i.e. more than one gene controls a particular trait. This is the case of the skin color trait in humans, which is controlled by three genes.
However, since each gene contains two alleles, each parent will contribute three alleles for the three genes to the development of an offspring i.e. three alleles from the father and three from the mother will result in three genes in the offspring, each containing two alleles.
Answer:D
Explanation:
3. All of the following are true of fresh vegetables EXCEPT
they spoil quickly.
they are very nutritious.
they are cheapest when in season.
they keep as long as canned vegetables.
they are vert nutritious
You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases. How is this process an analogy for what happens to DNA over time? (Just 2-3 sentences)
40 points to whoever responds first
Answer:
Use Analogies You tell a story to a second person who tells it to a third person, and so on. As the story is retold, changes are introduced. Over time, the number of changes increases.
The story changes over time because of the way the teller and the listener communicating. The DNA of a newborn baby is a combination of their mom and dad. Every time the DNA changes it's because there is a new combination of two people.
What do producers dictate in
an ecosystem?
A. the size of the organisms
B. the age of the organisms
C. the amount of organisms
Answer:
C. The amount of organisms
Explanation:
Producers produce food from inorganic matter, this then makes food for other organisms in an ecosystem. The amount of producers dictates how much food is available, and by that how many organisms can be present.
Plz help I’m begging plz
Answer: 4
Explanation:
i just know i took cem before
Electrons can move from one to what to another?
Answer:
Atom
Explanation:
Answer:
So having learned that electrons can move from one energy level to another by transmitting or taking in energy, It is not the electrons that are moving in the classical sense. It is the whole atom which has quantum mechanical solutions with energy levels and orbitals for the electron.
Explanation:
3. Which of the following is NOT a method that has been used to predict earthquakes?
A) Trying to observe precursors such as foreshocks and changes to animal behavior.
B) Watching changes in weather patterns.
C) Using past earthquake patterns.
D) Predicting stress accumulation based on how recently an earthquake occurred.
Predicting stress accumulation based on how recently an earthquake occurred is not the method that has been used to predict earthquakes. The correct option is D.
What is earthquake?Earthquakes typically result from subsurface rock breaking unexpectedly and rapid movement along a fault.
The seismic waves that cause the ground to tremble are brought on by this quick release of energy.
When two chunks of the ground abruptly slide past one another, an earthquake results. The fault or fault plane is the area where they slide.
Erratic animal behaviour, such as fearful or puzzled pets, or birdcalls not typically heard at night, can be a clue that an earthquake is about to happen. Water levels in wells or artesian bores suddenly change.
It hasn't been possible to anticipate earthquakes by basing stress accumulation on how recently an earthquake happened.
Thus, the correct option is D.
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hey guys so my sister wants a pet now and she is 14 she got a frog for herself but we returned cause i had to take car od it and it wasent fair for me what should i do she also wants to kinda take my frogs awau from me i spent my har earned money im 12 i takee care of them and they were for my burthday i spent my whole saving on them what should i do
Answer: Tell her that they are your frogs and that she should have taken care of them. And not to take her frogs or i will (expose and seceret to your family or somthing) Or just tell her to get a job and buy her own frogs and take care of them. Tell you mom and dad to> like its not your fault and tell them whats going on. You should try getting a snake or a hamster next. or spider.
Explanation:
what causes fast rate of growth in eichhornia
Answer:
Due to short life cycle and mode of reproduction.
Explanation:
The main cause of the fast growth rate of Eichhornia is their mode of reproduction and shorter life cycle. Eichhornia reproduce through sexually and clonally. Its life cycle is only 10 days means that within 10 days the population of Eichhornia becomes double. It reproduces through sexual reproduction as well as asexual reproduction such as clonally which also contributes for the fast growth of eichhornia plant.
Which types of energy would fall under the form of Kinetic Energy? Mark all that
apply.
Thermal Energy
Nuclear Energy
Electromagnetic Energy
Mechanical Energy
Chemical Energy
how does shell color work to protect the egg from sunlight?
Answer:
Birds that live in cool climates lay darker eggs, as darker colors absorb more heat from the sunlight
Birds that live in hotter climates lay lighter eggs to prevent the egg from overheating.
The pigmentation acts to thermo-regulate the internal temperature of the egg, acting as a buffer between the embryo and the outside world. It does this by preventing overheating of the egg, through reflecting the sunlight off the pigmentation, rather than allowing it to be absorbed through the shell
Why does milk have to be kept in refrigerator
Answer:
so it dont spoil
Explanation:
a cross that results from a yellow and a purple allele together will result in what color corn kernel?
1.) yellow
2.) purple
3.) orange
4.) doesn’t exist
Answer:
1.) yellow
Explanation:
The high possibility of corn kernel colour is yellow if the yellow colour allele is dominant because the dominant trait or allele always appear in the offspring while on the other hand, the recessive allele does not appear in the shape and structure of the offspring so we can say that dominance is the reason for the appearance of colour in the seed or kernel.
In boxes A and B, the genotypes are shown for you. You need to determine the phenotypes. In boxes C and D, you must figure out the genotypes yourself first. Then, determine the phenotypes. A Punnett Square has 4 columns and 4 rows. The columns are labeled Upper B Upper E, Upper B e, b Upper E, b e. The rows are labeled Upper B e, Upper B e, b e, b e. Box A in Row 1 Column 1 contains Upper B Upper B Upper E e. Box 2 in Row 2 Column 2 contains Upper B Upper B e e. Box C in row 3 column 3 is empty. Box D in row 2 Column 4 is empty.
Answer:
Black fur black eyes
black fur red eyes
white fur black eyes
black fur black eyes.
Explanation:
Answer:
black fur, black eyes
black fur, red eyes
white fur, black eyes
black fur, red eyes
Explanation:
3. List two examples of organic farming
Crop rotation and green manures
You arrive at the scene of an accident where people are panicked and yelling. Three people appear to be injured. What action will you take FIRST?
Answer:
Go over to the panicked people and ask what happened.
Explanation:
I hope this helps you!
Which event causes
the formation of trenches in Earth's crust?
Answer:
Explanation:Cuando dos placas se presionan entre sí, una sección de una puede quedar bajo la otra. Ese proceso puede cavar trincheras oceánicas profundas o inducir erupciones volcánicas. Y a veces, como en los Himalayas las placas continentales chocan entre sí y, al no tener otro destino, construyen montañas.
a radioactive element has a half-life of 3,000 years. if a sample of this element begins with a mass of 60 grams, how long would you have to wait for the mass to decrease to 15 grams
Answer:
N = 60 g
Half life : N/2 = 3000
N/4 = 15 g
(b) Explain how the addition of a phosphate group to certain amino acids of Brec likely affects the tertiary structure and function of Brec. Explain how
the addition of a small RNA could prevent the activation of kinase D?
Answer:
Protein phosphorylation can activate/deactivate protein function, while small RNAs can be used for repressing translation of mRNAs through the RNA interference (RNAi) pathway
Explanation:
Protein phosphorylation is one of the most important posttranslational modifications (PTMs) that acts to activate, inhibit, or reversibly switch on/off protein function. Protein phosphorylation confers a reversible and versatile process that cells use to transmit signals and respond to environmental stimuli. This PTM is well known to modify the tertiary structure of the protein and thus activate/inhibit protein functions such as, for example, signaling pathways associated with protein interactions. In consequence, protein phosphorylation can be used by a cell to regulate Brec activity. On the other hand, small non-coding RNAs (ncRNAs) such as, for example, microRNAs (miRNAs), small interfering RNAs (siRNAs), and PIWI-interacting RNAs (piRNAs), are regulatory molecules that bind by complementary base pairing to messenger RNAs (mRNAs) in order to repress translation and/or trigger mRNA degradation through the RNA interference (RNAi) pathway. The RNAi pathway is widely used in molecular biology to silence genes of interest (for example, in this case, the gene that encodes for the kinase D protein).
1. Adding the phosphate group to the amino acid chains is known as phosphorylation. This attachment affects the tertiary arrangement and function of Brec.
Amino acids join together to form the protein that needs to be stimulated and deactivated for proper functioning.Protein phosphorylation is very crucial in post-translation modification.For protein function, it acts as an activator, inhibitor, reversibly on and offs the switch.Phosphorylation assures a reversible process to the cell to transmit signals for the cell functioning.Therefore, Brec activity can be controlled by the phosphorylation of proteins.2. Small RNA's are RNA fragments which is around 150 nucleotide in length.
Functionally significant small RNA's such as siRNAs, microRNAs scaRNAs and many other acts as regulatory molecules which target and adheres to the mRNA transcripts.This binding inhibits the translation process or degrades the mRNA by activating the RNA interference (RNAi) pathway.RNAi pathway is used to suppress the activation of the kinase D.To learn more about phosphorylation and small RNA follow the given link below:
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Tissue is made up of DIFFERENT or SAME group of............
Answer:cells?
Explanation:
Des a magnetic field flows though the inside of a magnet
Answer:
Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.
Explanation:
Answer:
However, the magnetic field lines do not just end at the tip of the magnet. They go right through it, so that inside the magnet the magnetic field points from the south pole to the north pole. Thus the magnetic field lines form a closed loop and do not have any ends.
Explanation:
So it's probably YES.
Biomagnification __________.
a.
causes a 90% loss of synergy higher on the food chain
b.
is caused by the ecological succession from a disturbed area to a climax community
c.
is introduced into an ecosystem through nonpoint pollution sources
d.
happens when an increased concentration of a substance accumulates in body tissues
e.
is the transportation of pollution from one ecosystem to another
Answer:
d :)
Explanation:
Considering that a hydrophilic stain was used to stain the skin, explain why the fat vacuoles in adipocytes are white (Hint: Remember hydrophilic will color those areas that "like water", think about water`s relationship with fats).
Answer:
The hydrophilic nature of the stain explains that these molecules are polar and charge molecules. therefore, attracts the water molecule but due to their polar nature, it will avoid lipid or fat molecules.
Adipocytes are the cells that are made up of fat or lipids that are hydrophobic due to their non-polar nature and due to this fact, these hydrophilic stains will not be able to stain adipocytes and will not be colored by the stain.
Write extensively the 3 main constituent of DNA
Answer:
A single nucleotide is made up of three components: a nitrogen-containing base, a five-carbon sugar, and a phosphate group. The nitrogenous base is either a purine or a pyrimidine. The five-carbon sugar is either a ribose (in RNA) or a deoxyribose (in DNA) molecule.
Explanation:
For a ________ trait to be observed, both parents must have the allele for that trait and pass it on to their offspring.
Answer: For a recessive trait to be observed, both parents must have the allele for that trait and pass it on to their offspring.
what two things can happen to the food made by plants?
Answer:
Food made by plants can get used by plants or by other animals as plants maybe eaten by other organisms that feed on plants by living on them, these organisms are called parasites. Or else the food can be used up by plants to carry out their metabolic activities ( activities at cellular level which keeps the plant alive ) like cellular respiration
Answer:
The food that is prepared by the plant is utilized for its metabolic processes, the excess food is stored in the form of starch, in the plants. ... The plants prepare starch by a process of photosynthesis with the sunlight along with "water and carbon dioxide
The food produced by the plants is in the form of sugar and the extra sugar produced is changed to starch and is stored in different parts of the plant such as in roots, stems, leaves, fruits and flowers.
Explanation:
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Which segment(s) correspond(s) to the boiling point of the substance?
A
B
C
D
E
Answer:
it is the E because the boiling point of water is 100 degrees
8. What factor contributes the most to the overall health and sustainability of an
ecosystem?
fear of bloodthe fear of blood is called
Answer:
Alsbzpakvaoallabspams
Answer:
This fear of blood is termed "hemophobia," a word derived from the Greek "haima" (blood) and "phobos" (fear).
Hope it helps!!!