Cell containing 12 replicated chromosomes in beginning of mitosis. There are 12 chromosomes after the completion of mitosis.
What is Mitosis?Two genetically identical daughter cells are created during mitosis, along with the original cell. A diploid cell has 2X DNA and 2N chromosomes at birth. The cells are still genetically diploid (2N chromosomal number) after DNA replication, but they contain 4X as much DNA because each chromosome has done so. A united pair of identical sister chromatids make up each chromosome today. Two identical cells with 2N chromosomes and 2X DNA each emerge from mitosis.
Chromosomes condense during prophase; each chromosome is made up of two identical sister chromatids that are linked at the centromere.In the metaphase, the spindle apparatus' microtubules push and tug the chromosomes into alignment along the plane of cell division in the center of the cell.Chromatids start to decondense and congregate at the opposing ends of the cell during telophase.The membrane pinches in during cytokinesis to split the two daughter cells.To know more about mitosis, visit:
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Overall, how many studies showed a positive effect of organic farming on biodiversity?.
Total of 66 studies revealed beneficial impacts of organic farming on biodiversity.
What are the benefits of organic farming?Economical: When growing crops organically, no costly pesticides, fertilizers, or HYV seeds are needed. As a result, there is no additional cost.A farmer can make a good return on investment by using locally sourced, less expensive inputs.High demand: The demand for organic products is extremely high in India and throughout the world, which increases export revenue.Nutritional value: Organic foods have higher nutritional value, are tastier, and are better for your health than foods grown with chemicals or fertilizer's.Environmentally friendly: Organic farming uses no chemicals or fertilizers, therefore it has no negative environmental effects.To know more about organic farming, visit:
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which of the following does not describe energy within an ecosystem
Solar energy, which accounts for the vast bulk of the energy in food webs, is converted into chemical energy during photosynthesis in plants.
What is the energy in an ecosystem?According to the first law, energy can only be changed from one form to another and cannot be created or destroyed.
The ecosystem's energy flow reflects this. Every stage of the energy flow results in an energy loss, according to the second law.
When molecules are broken down during respiration in plants, a small fraction of this chemical energy is converted directly into heat.
According to the rule of conservation of energy, energy can only be transformed from one form of energy to another and cannot be created or destroyed.
Therefore, Always entirely contained, energy. It is impossible to produce or destroy energy.
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The first cell of a new organism is formed from the merging of haploid gametes during.
The first cell of a new organism is formed from the merging of haploid gametes during .Fertilization .
Haploid describes a cell that carries a single set of chromosomes. The time period haploid also can check with the variety of chromosomes in egg or sperm cells, which might be additionally referred to as gametes. In people, gametes are haploid cells that incorporate 23 chromosomes, every of which a considered one of a chromosome pair that exists in diplod cells.
Diploid describes a cell that incorporate copies of every chromosome. nearly all of the cells within the human frame bring two homologous, or similar, copies of every chromosome. The simplest exception is cells in the germ line, which go on to provide gametes, or egg and sperm cells.
Haploid refers back to the presence of a unmarried set of chromosomes in an organism's cells. Sexually reproducing organisms are diploid (having sets of chromosomes, one from every determine). In human beings, handiest the egg and sperm cells are haploid.
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What do geologist do to recreate the geological history of an area?
Answer:
By studying rocks, fossils, and other geological features, scientists can still reconstruct what the ancient Earth looked like.
ANSWER 25+ PTS If a person is nearsighted, what type of lens will their glasses have to correct their eyesight?
A. diverging lens
B. flat lens
W ith each step during a marathon, a coordinated effort is taking place between your brain and the muscles in your body.
Place the following steps in order to describe this process for muscle contraction.
Drag the text blocks below into their
correct order.
- ATP is used to allow actin to slide past myosin, resulting in a shortening of the cell as muscle contraction occurs.
- Motor neurons carry the signal for contraction from the brain to the cells that make up each muscle.
- Neurotransmitters cross the synapse and bind to receptors on the muscle cell membrane.
- An electrical wave is triggered in the muscle cell, which triggers the release of calcium ions from the endoplasmic reticulum.
- Motor messages originate in the frontal lobe of the cerebrum and travel to the cerebellum to be refined and coordinated.
- The electrical wave causes neurotransmitters to be released into the synapse between the motor neuron and the muscle cell.
During muscle contraction, there are motor messages that originate from the frontal lobe of the cerebrum and travel to the cerebellum. Motor neurons carry signals from the brain from here to muscle cells.
An electrical wave is then generated releasing neurotransmitters such as acetylcholine into synapses between motor neurons and muscle cells. These neurotransmitters cross synapses and bind to receptors on muscle cells. This generates electrical waves in the muscle, releasing calcium ions from the endoplasmic reticulum.
After this step, calcium ions bind to troponin on actin and displace tropomyosin. At this stage, actin binds to myosin and forms crosslinks. Since myosin has an ATP binding site, ATP is hydrolyzed to release energy. This energy moves actin filaments inward to M-lines and myosin outward to Z-lines. This leads to sarcomere shortening or muscle contraction.
Hence the correct order is (starting from top 1st-6th): 2, 1, 6, 3, 4, 5.
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one unique feature of the water cycle of Gorongosa National
Park (examples include Mt. Gorongosa, Lake Urema).
A wide variety of animals and flora, some of which are unique to Gorongosa, can be found there. A complex environment where interactions between people, plants, and animals result from this vast biodiversity.
The Cheringoma Plateau, which has limestone formations, caves, canyons, and waterfalls, is undoubtedly the highlight of the Rift Valley, where the park is located. The park's primary water supply comes from Lake Urema.
The park is located beneath a mountain that rises over 2000 meters above sea level and is built around a sizable lake. The animation demonstrates how rain falls in the park during the rainy season as a result of moisture from the Indian Ocean. Water that the mountain had stored is gradually released into the park during the dry season.
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What could be used to treat an infection caused by Eubacteria? peptidoglycans nucleoids plasmids antibiotics
Answer:
Antibiotics.
Explanation:
Eubacteria is a spherical or rod-shaped bacteria of the order Eubacteriales, characterized by simple, undifferentiated cells with rigid walls. Due to this being a bacterial infections, antibiotics would suffice just fine.
What are antibiotics?Any of a large group of chemical substances, as penicillin or streptomycin, produced by various microorganisms and fungi, having the capacity in dilute solutions to inhibit the growth of or to destroy bacteria and other microorganisms, used chiefly in the treatment of infectious diseases.
Thanks.
Answer:
Antibiotics
Explanation:
Eubacteria is a spherical or rod-shaped bacteria of the order Eubacteriales, characterized by simple, undifferentiated cells with rigid walls. Due to this being a bacterial infections, antibiotics would suffice just fine.
What Are Antibiotics?
Any of a large group of chemical substances, as penicillin or streptomycin, produced by various microorganisms and fungi, having the capacity in dilute solutions to inhibit the growth of or to destroy bacteria and other microorganisms, used chiefly in the treatment of infectious diseases.
Thanks.
When are the genes involved in lactose metabolism in e. Coli expressed and when are they turned off?.
Genes involved in lactose metabolism can be found in the E. coli lac operon. Only when lactose and glucose are both present does it express.
Why are the E. coli genes involved in lactose metabolism referred to as an operon?They are both under the same promoter's control. A promoter is a brief DNA region where RNA polymerase interacts to initiate transcription of the downstream genes that are under its transcriptional control. When more than one gene is controlled by the same promoter, we refer to the group of genes as an operon.
The lac operon turns on when there is lactose present.Lactose binds to the repressor protein and prevents it from binding to the operator when lactose is present in the media.
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How do molecules differ from atoms?
1 Atoms occur naturally, whereas molecules
do not.
2 Atoms are individual particles, whereas mol-
ecules are combinations of atoms.
3 There many different types of atoms, but only
a few different types of molecules.
4 Atoms are found in living things, whereas
molecules are found in nonliving things.
Answer:
2, Atoms are individual particles, whereas molecules are combination of atoms.
help a lazy man out.......................................................................................
Word equation: aluminum metal + oxygen ---> aluminum oxide
Reactants: aluminum metal and oxygen
Products: aluminum oxide
States of matter: aluminum metal (solid), oxygen (gas), aluminum oxide (solid)
Equation: [tex]4Al (s) + 3O_2 (g) --- > 2Al_2O_3 (s)[/tex]
Vocabularies of chemical equationsFollowing the examples shown in the illustration, if four atoms of aluminum metal react with three molecules of oxygen in the air to form two molecules of aluminum oxide, the answers to the problems would be as follows:
The word equation of the reaction would be written as:
aluminum metal + oxygen ---> aluminum oxideThe reactants of the reaction would be:
Aluminum metal and oxygen in the airThe product of the reaction would be:
Aluminum oxideThe states of matter of the components of the reaction:
aluminum metal - solid oxygen - gasaluminum oxide - solidEquation of the reaction:
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Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment?.
Zero 0 is the recombination frequency corresponds to perfect linkage and violates the law of independent assortment.
The division of homologous chromosome pairs into halves during meiosis results in the formation of haploid cells, and the assortment of these homologous chromosome pairs is random. Thus, unlike the separation of all paternal chromosomes into one cell, the separation of all maternal chromosomes into another cell will not occur.From Mendel law of independent assortment the alleles of more than or equal to two distinct genes are independently sorted into gametes. The allele a gamete receives for one gene does not affect the allele a gamete receives for another gene, in other words. The law of segregation explains how a gene's alleles divide into two gametes before coming together during fertilisation. Alleles of various genes separately segregate from one another during the development of gametes, according to the law of independent assortment.
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4. Do you think a lahar would have preserved Pompeii the
same way that a pyroclastic flow did? Why or why not?
Yes. lahar preserved Pompeii which was buried under ash. For many centuries Pompeii slept beneath a blanket of ash and pumice which perfectly preserved the remains.
What is a lahar?
Lahars are volcanic mudflows, and they do not have to come directly from volcanic activity. They occur when huge amounts of volcanic ash mixed with water flow down the side of a mountain.
These are a hot or cold mixture of water and rock fragments that flows down the slopes of a volcano and enters a river valley.
What is a pyroclastic flow?
A pyroclastic flow is a hot chaotic mixture of rock fragments, gas, and ash that travels rapidly away from a volcanic vent or collapsing flow front. These are extremely destructive and deadly because of their high temperature and mobility.
Lahars and pyroclastic flows are the most destructive aspects of volcanoes. Hence lahar preserved Pompeii in the same way as the pyroclastic flow because savor helps filter junk lahars which are the most dangerous result of the eruption.
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The cross between two individuals with general type SsRr is shown in the Punnett square. how many out of 16 offspring would be expected to be homozygous recessive from both traits?
The number of the resulting offspring from the cross expected to be homzygous recessive for both traits would be 1.
Dihybrid crossThe cross is between two individuals whose genotypes are SsRr.
Individual 1's genotype = SsRr
Individual 2's genotype = SsRr
Crossing the two:
SsRr x SsRr
Offspring's genotype:
S_R_ = 9
ssR_ = 3
S_rr = 3
ssrr = 1
Homozygous dominant individuals both traits would be SSRR while homzygous recessive individuals for both traits would be ssrr.
From the result of the cross, the number of individuals that is homzygous recessive for both trait is 1 out of 16 offspring.
In other words, the cross between two SsRr individuals will yield 1 homzygous recessive individual for both trait out of 16 individuals.
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Answer:
1/16
Explanation:
“Fortunately, the V-2 came too late in the war to help the Germans win.” How did the United State's rocketry program, NASA, etc. benefit from this?
The way that United State's rocketry program, NASA, etc. benefit from the issue with e V-2 was that While the Space Race frequently fueled Cold War rivalry and anxiety, it also had significant positive effects on human society. Telecommunications, microtechnology, and other fields all experienced significant advancements as a result of space exploration.
What advantages does the NASA space program offer?The singular goal of NASA offers advantages both large and small. Spending in space exploration boosts the economy, creates jobs, and kickstarts businesses. Our inventions enhance day-to-day living, promote medical knowledge, aid in disaster relief efforts, and more.
Therefore, The Space Race was crucial because it revealed which nation had the best economy, science, and technology in the globe. Both the United States and the Soviet Union knew after World War II how crucial rocket research would be for the military.
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envelope viruses get their envelope during which step?
Enveloped viruses get their envelope during budding off step.
Enveloped viruses will cause persistent infections and should transfer from host to host. samples of swallowed viruses embody ones that cause infamous diseases in humans, like COVID-19, Influenza, serum hepatitis and C, and viral infection (Ebola Virus Disease). Not all viruses have envelopes. The envelopes are generally derived from parts of the host cell membranes, however embody some infectious agent glycoproteins.
This envelope comes from the infected cell, or host, during a method referred to as "budding off." Throughout the budding method, new shaped virus particles become "enveloped" or wrapped in an outer coat that's made of a tiny low piece of the cell's cell membrane.
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Which animals—five of them—slipped loose from their enclosure at a sydney zoo this week, prompting a full lockdown?.
At Sydney's Taronga Zoo, four pups and an adult lion named Ato managed to escape their cage due to "an issue of trust with a containment fence.
On Wednesday, five lions at an Australian zoo were able to escape their enclosure, causing a momentary emergency that required authorities to race to capture them. With such a "code one" signal, which indicates a reaction involving a hazardous animal, the zoo was placed directly on lockdown. Also swiftly taken to safety were participants in the zoo's extended overnight Roar and Snore program. The lions were seen in a tiny space next to the primary lion display, safety were which was divided from the body of the zoo by a six-foot fence, according to Simon Duffy, the director of Taronga Zoo.
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Need help on this one plss!!! This is like my 5th time submitting the same photo
Phenotypic ratio of di-hybrid cross is as follows:
Tall/Green : Tall/Yellow : Short/Green : Short/Yellow = 9 : 3 : 3 : 1
What is a dihybrid cross?A Dihybrid cross is a cross between two individuals with two observed traits controlled by two different genes. This describes a mating experiment between two organisms that are identical hybrids for two traits. Hybrid organisms are heterozygous, meaning they have two different alleles at a particular genetic position or locus. Dihybridization was initially valuable as an experimental test of Mendelian laws, showing that each trait can be inherited independently according to Mendelian rules. It has since become an important tool for mapping genes to chromosomes and elucidating how genes can interact to determine phenotypes.
The phenotypic ratio of a dicross in a standard Mendelian experiment is 9:3:3:1. In this case, her two pairs of alleles are grouped separately into gametes.
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Overfishing of salmon has caused populations of wild salmon to decline. To combat this decline, salmon are raised in hatcheries, and then released to the wild. However, researchers have found that hatchery-raised salmon have reduced reproductive success in the wild, compared to wild salmon. They have also identified many genetic differences between hatchery-raised and wild salmon. Which statement describes the most likely reason for the differences between hatchery-raised and wild salmon? A. Hatchery-raised salmon have evolved to have completely different genomes from those of wild salmon. B. Hatchery-raised salmon develop into stronger swimmers than those raised in the wild. C. The pressures of a hatchery environment promote convergent evolution between hatchery-raised and wild salmon. D. The pressures of a hatchery environment and of the wild environment select for different traits.
A. Hatchery-raised salmon have evolved to have completely different genomes from those of wild salmon.
Why do the Hatchery-raised salmon have a different genome?
First generations of Hatchery-raised salmon have 700 different genes, which include variations in reproductive and survival skills which can be passed on to the next generations.
The exact reason for these genetic variations is not known yet, but by identifying these different genes, researchers hope to learn more about how they have adapted to their new lifestyle. The differences in genes between the hatchery-raised and wild salmon are vast and heritable.
These genetic changes are significant and fast. There is literally an evolutionary process at work here, but it does not take many generations or long periods of time.
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Photosynthesis happens in a
_______
Answer:
Photosynthesis happens in a leaf (of a plant).
Envelope viruses get their envelope during which step?
Answer:
Envelope viruses get their envelope fully during the "Budding" stage.
Explanation:
The host membrane begins to wrap around the virus and form the envelope in the "envelopment" stage, but the virus is only properly enveloped at the "budding" stage. The process begins in the envelopment stage and is completed in the budding stage. Here is a diagram, you can see that the budding step is the first step where the virus is completely encased in its envelope.
How did your prediction about the complexity of the flower's structure compare with your observations? Cite evidence to support your answer.
My predictions were It's structure is complex. Parts of the flower are the two primary parts of the Rose and that is the stamen and the pistil which are the female and male componets.
How would i answer the question.
Flowers having different parts calyx, corolla, androecium, and gynoecium contain a specific floral position.
What is the flower?The flower is made up of four whorls of modified leaves called the calyx, corolla, androecium, and gynoecium.
Each of these whorls contains one floral portion, which is the sepals, petals, stamens, and pistils. Grasp plant sexual reproduction, pollination syndromes, plant breeding, and fruit construction require a thorough understanding of floral structure.
Therefore in flowers, different floral positions consist of calyx, corolla, androecium, and gynoecium.
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Question 1 options:
The process allows organisms to grow and heal.
The process produces clones of the parent organism.
The process copies DNA before cell division.
The process creates genetic variation in the resulting cells.
The process that allows organisms to grow and heal is mitosis.
The process that produces clones of the parent organism is mitosis.
The process that copies DNA before cell division is replication.
The process that creates genetic variation in the resulting cells is meiosis.
Cell divisionCell division is a process whereby cells divide to produce daughter cells. There are two types of cell division:
MitosisMeiosisIn mitosis, cells divide to produce daughter cells that are exact copies of their parents. The division is otherwise known as the equational division or the division of vegetative cells. The division of vegetative cells is essential growth and healing of wounds.
In meiosis, cells divide to produce daughter cells that are genetic variants of their parent cells. The daughter cells are unique from the parent cells both morphologically and genetically. Meiotic cell division is otherwise known as reductional division because the daughter cells have half the genetic copies of their parent cells.
Be it mitosis or meiosis, cells make copies of their DNA before irreversibly committing to divide. The copying of DNA is otherwise known as replication. Replication happens at the S phase of the cell cycle with each DNA strand acting as a template for the synthesis of its complementary copy.
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DNA coding strand TAC TAG GTT TCA CCC ATT
Answer:
AUG AUC CAA AGU GGG UAA
Amino Acids:
Methionine, Isoleucine, glutamine, Serine, Glycine, Stop codon
Explanation:
DNA converted to mRNA goes like this
Apples Under Trees
Cars in Garages
now let me explain this,
A(Adenine) goes with T(Thymine)
C(Cytosine) goes with G(Guanine)
BUT,
this is where the U in under takes place since we are transcripting, there is no T, it is replaced with U(Uracil)
Ex: CAT
Would be
GUA
C is paired with G, A is paired with U in transcription, and T is paired with A.
Ex: AGG
Would be
UCC
A is with U in transcription, G is paired with C.
Now we find the amino acids aka traits :)
I like to use a circle codon mRNA chart
Methionine, Isoleucine, glutamine, Serine, Glycine, Stop codon
(can go in depth about codons and stuff, or the codon chart if you don't know how to use either the box or circle one)
d) What happens to a microscope if place at the edge?
When the object is placed on the slide and is in focus for each objective, the space between the slide and the objective lens gets reduce, so the microscope shouldn't be set exact at the edge.
As the objective magnification increases, the working space also increases. Therefore, you need to change it to a higher power target.
Change the focus knob to increase the stage as you look at the objective lens and stage from the side. Without permitting the objective to make contact with the coverslip, increase it as high as it can go. The sample's focus or the condenser and light intensity might need to be arranged.
Thus the accurate way to focus is that adjustments need to be made effectively and smoothly
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Which component of eukaryotic cells is critical for the correct sorting and transport of proteins?.
In eukaryotic cells, the Golgi body, a component of the endomembrane system, transports and changes protein.
Proteins produced either by endoplasmic reticulum (ER) are processed in the Golgi before being sent to the cell. Proteins reach this same Golgi on the part that is trans to the ER and leave on the side that is trans to the cell's plasma membrane (trans side). Proteins must pass through a series of intermediate cisternae where they are altered and packed before being transported to various parts of the cell. Three primary cisterna are typically represented diagrammatically, however this is a simplification. The trans Golgi system (TGN) and the cis Golgi system (CGN) are occasionally inserted as extra sections on each side (TGN). These systems have a more complex structure, with some vesiculated and some cisterna-like areas.
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Need help on all parts
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What’s the correct answer answer asap for brainlist and it better be right
Answer:
I believe its the answer is A.
Explanation:
It makes the most sense
Have a nice day!
The electron transport chain consists of a series of _____ that serve as electron carriers.
Which set of facts is true for the lymphatic system?
It works together with the respiratory and immune systems.
It returns tissue fluid back to the cardiovascular system.
It works together with the circulatory and respiratory systems.
It transports blood to the central nervous system.
It works together with the circulatory and immune systems.
It returns tissue fluid back to the cardiovascular system.
It works together with the circulatory and immune systems.
It carries blood to the excretory system.
Answer:
It works with the circulatory and respiratory systems.
Explanation:
Because they both destroy pathogens and remove waste in the body to keep it healthy.
