Why does DNA look like a folded thread? HELP ME PLEASE!!!!
Answer:
During DNA packaging, long pieces of double-stranded DNA are tightly looped, coiled, and folded so that they fit easily within the cell. Eukaryotes accomplish this feat by wrapping their DNA around special proteins called histones, thereby compacting it enough to fit inside the nucleus
Gregor Mendel experimented on genetics by breeding pea plants. He figured out that each inherited trait has two alleles. For plant height, he determined that there
was a tall allele (T) and a short allele (1)
He crossed a true breeding tall pea plant with a true breeding short pea plant. All of the offspring of this cross were tall. The most probable genotype of these
offspring is __
Tt ,
because they have 1 tall gene from parent 1 (tall plant) and 1 short gene from parent 2(short plant)
Burning wood is a chemical change or physical change
Answer:
chemical change
Explanation:
All animals need food, water, shelter, and space to live. which of these is difficult to find in a grassland habitat?
According to the scenario, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
What is Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. It may also be characterized as the area where the basic demands of an organism are fulfilled like food, water, space, mating partner, etc.
Grasslands habitats are generally open and continuous, fairly flat areas of grass. They are often located between temperate forests at high latitudes and deserts at subtropical latitudes. In these habitats, the availability of shelter is very low because of an abundance of small grasses across the area which is insufficient to build a shelter.
Therefore, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
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what is natural selection?
Answer:
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
How will planting genetically modified crops affect chemical use on farms?
Increase chemical use
Decrease chemical use
No change to chemical use
No answer text provided.
The correct answer is
B. Decrease chemical use
What are two types of evidence that have helped biologists determine the ancestors of modern humans
Answer:
The evolution of modern humans consisted of fossils, direct observation, anatomy, and molecular biology.
define specialization in animals cells
New forms of drug-resistant bacteria can evolve quickly because
Answer:
The correct answer is - when a drug kills most of the bacteria, the ones left to breed are those that have a natural resistance to the drug.
Explanation:
When a drug or antibacterial medication used on the colony of a bacteria, the drug kills most of the specific bacteria from the host or culture, however, some bacteria remain to breed the next generation of bacteria as they had resistance to the particular drug.
The left bacteria breed and produce more resistant bacteria and after a few generations, a new form of drug-resistant bacteria develops. This follows the natural selection process and adapting the beneficial characteristic.
7. Challenge yourself: You have already learned that mutation is one source of
variation in a population. Based on what you have just seen, what is a second
source of variation?
(I just need more information or explanation) please
Answer:
Natural selection would be the other source because organisms that have a beneficial trait will live, but organisms that do not have a beneficial trait might die. So the organsims that do survive will reproduce and pass on those traits to their offspring. Eventually all the organisms that do not have a beneficial trait will die out, leaving most of the population having that beneficial trait.
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
Its the 3 one
Answer:
I'm pretty sure the answer is that they are in the same biological classification
Explanation:
this is the answer because they evolved from a common ancestor.
I WILL GIVE BRAINLIEST!!!
What is a unique factor seen in interphase between meiosis 1 and meiosis 2.
A:the S phase of DNA replication
B:interphase is twice as long a regular interphase
C:interphase is shortened or missing
D:the G1 and G2 stages are expanded to create multiple cells
Answer:
I think it is c
Explanation:
I searched it lol
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer:
B. Evidence from rock layers, fossils, and ice cores.
Explanation:
Right i believe
Answer:
Its the 4th one. I think. Its the 2nd or third but can't tell for sure. When I searched it, the result came as followed: "Plate tectonics shift the continents, raise mountains and move the ocean floor." So yeah. Hope this somewhat helps.
Explanation:
Describe the difference in pressure against your cheeks when they are full of air versus When You released it
Answer: When they were full of air, then the Pressure was the Highest 'cause of the larger force under the specified area as compared to when we released it. We decreased the area of our cheek, so pressure increased and air flows from the cheek (area of high pressure) to the atmosphere
Explanation:
using the data you collected , hypothesize what a cladogram would look like for the organisma in Data table 1, assuming the trout is on the first and lowest branch.
Answer:
assuming the trout is on the first and lowest branch
Directions Rearrange the words to make a meaningful sentence. Write your
answer on a separate sheet of paper.
stationary objects.
Static friction
occurs in
a self-regulating force.
frictional force is
The static
2.
Answer: im just doing challenges
Explanation:
Source: "trust me"
Static frictional force is the minimum force that must be overcome for one object to slide over another.
What is frictional force?Frictional force is the force the acts between the surfaces of two objects in contact which oppose the motion of one object over the other.
The minimum force that must be overcome for one object to slide over another is known as static frictional force.
If the applied force is greater than static frictional force, the object will start moving over the other.
Therefore, static frictional force is the minimum force that must be overcome for one object to slide over another.
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100 points!!! please help
Answer:
You can buy a nutrient solution over the counter, or take some water from a fish tank or pond to supply nutrients. Using water from a pond or fish tank could introduce other contaminants into the growth medium. You can also mix nutrient solutions. The Walne medium is a nutrient mixture that is suitable for most algae
Explanation:
does that hep
Answer: Look it up on quilt
Explanation:
I had that paper
What happens when cells do not
respond to the signals that
normally regulate their growth?
Answer:
Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues. ... Normal cells respond by not growing.
Answer:
Cancer cells do not respond to the signals that regulate the growth of most cells... What happens when cells do not respond to the signals that normally regulate their growth? Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues.
Hope this helps!!!
Have a great day!!! :)
Mention two important roles for hydrochloric acid in the stomach.
Answer: 1.)The gastric juice
2.) The acidic gastric
Explaining: The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.
Hope this helps. :)
Argentine ants are invasive ants found in California. They’re aggressive in nature and have a tendency to protect crop pests. In urban areas, Argentine ants don’t have many predators. Argentine ants and the native ant species were observed competing for nutrients in a particular ecosystem. What is a likely outcome of this competition? A. an increased number of Argentine ants B. an increased number of native ants C. no dependence between the populations of the two ant species D. an equal number of Argentine and native ants
Answer:
The answer is C.
Explanation:
No dependence between the populations of the two ant species.
Three examples of traits that can be BOTH genetic and non-genetic. For example, having a sense of humor- you can inherit it, or you can learn it, so it's both. I need three other examples. Cannot include height or how fast someone can run.
Explanation:
ሠሁነሁጋነነሃዐሠዐቻነዘሀቻዐሀነጕñነነጌዕሃነጋዕሀዕ
Answer:
Sense of fashion\style, maybe music or artistic taste and preferences in food
Explanation: These are just my ideas but if you don't want to use them then that's fine.
Most of the functions of a cell membrane are performed by
a. proteins.
b. cholesterols.
c. phospholipids.
d.carbohydrates.
Answer:
Pretty sure the answer is, A.) Proteins
Explanation:
HELP URGENT!!!!!!!!!
HEY!!! PLEASE HELP ME I WILL GIVE BRAINLEST!!!
Which of the following processes is NOT a way that carbon could move between the atmosphere and the biosphere?
Question 4 options:
respiration (breathing)
combustion (burning)
deep burial, compaction, and cementation
photosynthesis
Question 5 (2 points)
What is the only natural way that carbon can move OUT of the geosphere?
Question 5 options:
burning of fossil fuels
volcanic eruptions
dissolution
decomposition
Question 6 (1 point)
Which carbon reservoir contains the MOST carbon?
Question 6 options:
fossil fuels
atmosphere
land biomass
rocks
Question 7 (2 points)
Which carbon reservoir changes the quickest and has the biggest direct effect on climate?
Question 7 options:
land biomass
ocean
atmosphere
rocks
Question 8 (2 points)
Which best describes the process of ocean acidification?
Question 8 options:
The ocean absorbs more human-produced CO2, causing the acidity to increase
The ocean releases more human-produced CO2, causing the acidity to decrease
The ocean absorbs more natural CO2, causing the acidity to decrease
The ocean receives more polluted runoff, causing the acidity to increase
Question 9 (2 points)
What is a potential impact of ocean acidification?
Question 9 options:
Animals will have a harder time building their shells
Corals may have a harder time building their skeletons
Ocean ecosystems may suffer, making it harder for humans to get food from the ocean
All of the above
Answer:
4) photosynthesis
5) volcanic eruptions
6) fossil fuels
7) ocean
8) The ocean absorbs more natural CO2, causing the acidity to decrease
9) All of the above
Which of the following best explains how viruses replicate?
Answer:During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. During uncoating, replication, and assembly, the viral DNA or RNA incorporates itself into the host cell's genetic material and induces it to replicate the viral genome.
Explanation:
Virus replication is the formation of biological viruses during the infection process in the target host cells. Viruses must first get into the cell before their replication can occur.
What do you mean by Viruses?Viruses may be defined as infectious microbes consisting of an element of nucleic acid surrounded by a protein coat.
There are six steps that govern the replication of a virus. They are given below:
Adsorption or attachment: This step attaches the virus particle to the plasma membrane of the host cell. Penetration: It is done by receptor-mediated endocytosis and the virus now enters into the cytoplasm of the cell.Uncoating: This step breaks the whole structure of the virus particle and allows its genetic material to reach inside the nucleus of the host cell.Viral Genome replication: This is done in the nucleus of the host cell.Maturation: It involves the growth of replicated virus particles.Release: It allows the replicated virus particle to move outside the host cell by bursting it.Therefore, it is well described above.
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The trait for hemophilia is sex-linked (on the X chromosome) and recessive. If a female who
is a carrier of hemophilia (XHXh) mates with a man with normal blood (XHY):What are the
chances of their daughters having hemophilia? What are the chances of their sons having
hemophilia?
Is poverty or affluence a bigger issue moving forward? Discuss the pros and cons of
each.
Which term describes all plantlike protists?
A.Heterotrophic
B.Parasitic
C.Prokaryotic
D.Autotrophic
D.Autotrophic.....lolololo
Which describes the moth population after the industrial Revolution?
What is the importance of codons during the process of protein synthesis? Choose the correct answer.
Group of answer choices
Codons regulate when DNA gets transcribed in the nucleus.
Codons code for the particular amino acids that get assembled.
Codons tell the RNA how often it needs to be translated.
Codons alert the cell when it is time to produce additional ribosomes.
Answer: Codons code for the particular amino acids that get assembled.
Explanation:
The codons codes for particular amino acids which gets assembled to form proteins. Protein synthesis takes place in ribosomes. Thus, the correct option is C.
What is Protein Synthesis?Protein synthesis takes place in the ribosomes, these are present in the cytoplasm of cell. Ribosomes are made up of two subunits- one large and one small subunit. DNA synthesizes mRNA which further undergoes translation to produce proteins.
Amino acids codons codes for the key which allows these languages to be translated into the form of proteins in cell. Each codon codes for a specific amino acid or stop signal and the full set of codons in the cell is known as the genetic code.
Therefore, the correct option is C.
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