has anyone done this and wanna help me out ? I’m confused
Answer:what do u mean
Explanation: super wierd what do u need help with
Answer:
Explanation:
Nope Sorry :(
heres the map for the last question
Answer:
what question is that hello
which of the following statement is always true
Where is the statement
One possible result of chromosomal breakage is for a fragment to join a nonhomologous chromosome. This is called:______
a. deletion
b. inversion
c. duplication
d. translocation
e. aneuploidy
Answer:
The correct answer is: translocation.
Explanation:
When a chromosome breaks, there are many ways in which this can affect the integrity of the genes, as it can cause the deletion of one or several parts of the DNA. Other abnormalities include duplication and inversion of the genes.
When one fragment of the DNA breaks and joins a nonhomologous chromosome, the event happening is a translocation. There are two types of chromosomal translocations:
reciprocal translocations, in which the involved chromosomes exchange segments with one another.Robertsonian translocations, in which an entire chromosome joins another chromosome's centromere.Depending on the type of translocation and the amount and nature of the genes, this abnormality can affect individuals in different degrees.
Aneuploidies, on the other hand, are not related to the integrity of the chromosomes but rather the number of chromosomes. While euploidy refers to a total of 46 chromosomes in humans, aneuploidy describes individuals with more or fewer chromosomes.
All of these anomalies can be identified with a karyotype.
Answer:
Translocation
A virus can infect any cell it encounters.
True
False
Question 1
In cellular respiration energy is converted from (2 points)
Answer:
It is converted from glucose and oxygen
The structural shape of DNA can be
described as a?
Answer:
DNA is made up of molecules called nucleotides. Nucleotides are attached together to form two long strands that spiral to create a structure called a double helix. If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs.
Explanation:
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Which of the following promotes the rapid growth of bacteria?
А
Food held between 70-125° F
B
Cooking foods for long periods of time
с
Foods that are very dry
D
Foods that are held just above freezing
Answer: А . Food held between 70-125° F
Explanation:
Bacteria needs favorable FAT TOM conditions to grow. This means that bacteria needs favorable Food, Acidic conditions, Temperature, Time, Oxygen and Moisture conditions to grow.
When it comes to temperature, there is something called the Danger Zone where bacteria can rapidly grow and multiply by a rate of up to double every 20 minutes.
This danger zone is between 40°F - 140°F which means that food held at 70-125° F is in that danger zone and will promote the rapid growth of bacteria.
A. Food held between 70-125° F promotes the rapid growth of bacteria. Option A is correct.
The temperature range between 70-125° F (21-52° C) is commonly known as the "danger zone" for bacterial growth. Within this temperature range, bacteria can multiply rapidly and pose a risk of foodborne illness. This temperature range provides optimal conditions for bacterial growth and reproduction.
Bacteria thrive in warm and moist environments, and temperatures within the danger zone provide the ideal conditions for their proliferation. When food is held within this temperature range for an extended period, bacteria present on the food or introduced from the environment can multiply quickly, increasing the risk of food contamination.
It is important to note that cooking food for long periods of time (B) and foods that are very dry (C) can actually inhibit bacterial growth. High temperatures during cooking can kill bacteria, while dehydration can reduce the water content that bacteria need for growth and survival. On the other hand, foods held just above freezing (D) slow down bacterial growth but do not promote rapid multiplication.
To prevent bacterial growth and ensure food safety, it is recommended to keep perishable foods either below 40° F (4° C) or above 140° F (60° C) to minimize the time spent in the danger zone. Proper cooking, refrigeration, and temperature control are essential practices in preventing bacterial growth and maintaining food safety.
To learn more about bacteria, here
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what two components make up mass
Explanation:
Mass is made up of atoms, and atoms hold mass. Atomic mass solely based on the atom's protons and neutrons.
A virus has a nucleus and other organelles
True
False
Answer:
False it just have a false nucleus surrounded by a protein
Answer:
False
Explanation:
given that cells can't store app for long periods of time, how do they store energy
Answer:
Given that cells can't store ATP for long periods of time, how do they store energy? Instead of storing ATP, cells tend to store energy as fats, oils, or starches. These are very large molecules and, as a result, do not have as great an effect on osmotic potential.
Explanation:
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Identify the heat transfer methods in the following situations.
A student boils water in a pan, on an electric stove. Three incidents thus, occur.
Answer:
Please mark as Brainliest!!!!!!
Explanation:
A student boils water in a pan - Convection
A student boils water in a electric stove - Radiation
Which is the closest synonym for the word pristine? A Perfect B Casual C Peculiar D Clumsy
Answer:
A. perfect
Explanation:
In general, microtubules disassemble and consequently pull the chromatids to the ends of the spindle during ____.
Answer: The options are not given, here are the options.
.a.prophase
b.prometaphase
c.metaphase
d.anaphase
e.telophase
The correct option is C.
Metaphase.
Explanation:
It is metaphase because during metaphase, the chromosomes lined up together and the two sister chromatids join to a particular spindle fiber. The microtubules them bring the sister together chromatids from the opposite spindle poles. The kinetochore microtubules capture the sister chromatids back and forth til they are able to form alignment along the equator of the cell which is called the equatorial plane.
Which of the following describes a “green roof”?
a roof that does not affect the carbon level of the atmosphere
a roof that is covered with sustainable living plants
a roof that is painted with a green copper compound to prevent the growth of moss
a roof that is shingled with green tiles
Answer:
a roof that is covered with sustainable living plants
Explanation:
Answer:
A roof that is covered with sustainable living plants
Explanation:
A green roof is considered to be a type of urban green space designed on the roof of a building or home. A green roof is considered a roof that houses many different types of plants and helps promote biodiversity. A green roof is partially or completely covered in vegetation. A green roof also includes a growing medium, a drainage system, and a waterproofing structure. There are also two types of green roofs: extensive and intensive.
Extensive
== use low-growing plants such as mosses, herbs, succulents, and grasses and require minimal maintenance. Intensive == wide variety including shrubs and large trees, and require structural support and routine maintenance and high start-up costs.
A strain of bacteria possesses a temperature‑sensitive mutation in the gene that encodes the rho subunit. At high temperatures, rho is not functional. When these bacteria are raised at elevated temperatures, what would you expect to observe?
a. All RNA molecules are shorter than normal because the absence of functional rho would derail the transcription.
b. Transcription does not take place because mutant rho would interfere with the RNA polymerase binding to the template.
c. Some RNA molecules would be longer than normal because these RNA came from the gene with rho-dependent terminator.
d. Some RNA molecules would be normal length because not every terminator in bacterial genes would be rho-dependent.
e. All RNA molecules are longer than normal because the absence of functional rho means the transcription continues beyond the proper termination point.
Answer:
d. Some RNA molecules would be normal length because not every terminator in bacterial genes would be rho-dependent.
Explanation:
Rho is a prokaryotic protein which is required at the end of transcription (termination) of dependent rho-terminator sequences. During transcription, Rho binds at the end of the single-stranded RNA sequence in a site known as 'transcription terminator pause site'. This factor has helicase activity dependent on the hydrolysis of Adenosine triphosphate (ATP) to ADP. The Rho binding site consists of a cytosine-rich region (∼ 70 nucleotides) that lacks RNA secondary structure.
Why are recessive traits not seen even though they are present in the alleles?
Answer:
Because if the dominant trait (D) is present, it will in a way, overpower the recessive trait (r), and show the dominantly present trait physically but in the alleles, there might be blue in there also but be overpowered for ex: dominant brown eyes with a blue recessive trait so most likey if you have brown since it takes over
Explanation:
Sorry if this sounds confusing, it sounds way better in my head XP
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Think and discuss: Paramecia that live in freshwater have contractile vacuoles, while those that live in salt water do not. Why do you think this is the case
Answer:
See the answer below
Explanation:
The contractile vacuole primarily functions for the excretion of excess water in organisms that possess the organelle. Paramecia that lives in freshwater would need to constantly get rid of excess water that is likely to be entering the cell due to the fact that the ambient water is hypotonic to their cells. The cytosols of paramecia that live in freshwater have a higher solute concentration and hence, lower water potential than the surrounding freshwater.
The paramecia that live in salt water do not have a need for the contractile vacuole because the problem of excess water entering their cells may not arise. The salt water may not be hypotonic to the cytosol of the paramecia.
Paramecia are single-celled eukaryotic organisms, which are found in aquatic habitats. They are long and slipper-shaped organisms, which have many membrane-bound cell organelles.
The paramecium is the protists, which are found in the marine habitat. The organisms are eukaryotic and have well-developed cell organelles.
The presence of contractile vacuoles in the paramecium regulates the osmoregulation and discharge of excess water. The contractile vacuole controls the intracellular water balance by discharging or accumulating excess water.
The saline water has a high concentration of salt, whereas the freshwater does not have salty compounds.
Thus, the paramecium in saline water has contractile vacuoles to regulate osmoregulation.
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Optimum germination conditions differ between species. Sometimes this depends on the evolutionary history of the plant species. One species has higher germination rates when the seeds are exposed to soil with ash present. This is an example of _______________.
Answer:
seed dormancy
Explanation:
Seed dormancy represents an evolutionary adaptation capable of preventing seed germination. Seed dormancy enables to overcome unfavorable periods for germination, thus being critical for plant survival. In this regard, it has been shown that in plants living in fire-prone ecosystems (such as, for example, montane forest species), seed germination may be triggered by ash after fire, which is required to break seed dormancy.
Ability of the body to maintain a relative stable internal environment is
Answer:
Homeostasis
Explanation:
I need help with this question. Can you guys help me?
Answer:
C
Explanation:
DNA polymerase can only add nucleotides to the free 3' end
Which event occurs prior to speciation?
A) Different species share the same space.
B) A major change on earth takes place.
C) A population is divided.
D) Organisms of different populations join together.
Answer: C.
Explanation:
I hope this helps plz tell me if its wrong so i can fix it :)
The event that occurs prior to speciation is that a population is divided, which is Option C, as when a population is divided by a geographic barrier such as a mountain range, river, or sea, then this type of speciation takes place.
What is speciation?Speciation is the process by which a single ancestral species gives rise to two or more descendant species, and it occurs when populations of the ancestral species become separated and evolve independently, accumulating genetic differences over time by a physical or geographical barrier along with mutation, genetic drift, or natural selection that separates a population into two or more groups that are no longer able to interbreed leads to speciation.
Hence, the event that occurs prior to speciation is that a population is divided, which is Option C.
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Viruses with dsRNA genomes evolved a long time ago and can be found in parasitic relationships with species from a variety of taxa. What mechanism do eukaryotes use to combat such viruses
Since, the question is incomplete the complete question is as follows:
Viruses with dsRNA genomes evolved a long time ago and can be found in parasitic relationships with species from a variety of taxa. What mechanism do eukaryotes use to combat such viruses?
Select all that apply.
RNA interference
posttranslational silencing
RNA-induced silencing
methylation of CpG islands
position effect variegation
genomic imprinting
Answer:
RNA interference
post translational silencing
RNA-induced silencing
Explanation:
Viruses are the pathogenic living organisms which invade the host cells of plants, animals, humans, and of other organisms to produce their own genetic material and progeny viruses. The following are the methods using which the eukaryotic organisms can prevent themselves from infections.
1. RNA interference: In this viral RNA is cleaved by the use of complementary RNA sequence present in the genome of the host cell.
2. Post translational silencing: In this the gene products of viruses are silenced.
3. RNA induced silencing: It involves the inhibition of replication of RNA of virus by the host cell machinery.
Plss due today! Will mark brainly!
1. Describe capillary action and give an example.
2. What is density?
3. What types of substance have pH values less than 7?
4. Give an example of a substance with a high concentration of H+ ions.
5. Give an example of a substance with a low concentration of H+ ions.
6. What is specific heat?
7. Does water have a high specific heat? What does this mean?
Water vapor inside magma increases its explosiveness.
true or fasle
Answer: True.
Explanation: When the water vapor bubbles try to rise they are impeded by the linkage of silica chains in the magma and can rise only slowly. The rapid change in confining pressure as the magma body rises to the surface causes the dissolved water vapor bubbles to expand and escape explosively.
Paraphrase the first law of thermodynamics.
Which statement is true? Genes are made up of chromosomes. Chromosomes contain a single gene. Centromeres hold instructions for how to make proteins. Genes are present of chromosomes and control traits in an individual.
How many cell divisions occur during meiosis?
Answer:
b
Explanation:
Why is it important to perform a restriction digest after cloning your gene of interest fragments into the TOPO vector?
Answer:
Restriction enzymes (restriction endonucleases) are proteins that cut DNA at (or close ... To be able to clone a DNA insert into a cloning or expression vector, both have ... you could carry out the two digestions simultaneously (double digestion)
Explanation:
What are the two general types of cells in the human body?