Answer:
i dont know
Explanation:
Many eukaryotic cells can be grown in tissue culture in the laboratory. Suppose you have two tissue cultures, one in G1 phase and one in S
phase. How would you determine which culture was in G, and which was in S?
I could look for growth and synthesis of proteins and other macromolecules as well as increase in organelles, which would show a culture in G1. DNA being synthesized would show in cells in the S phase.
The best way to determine if the cell is the G or S phase is by looking at the state of the DNA molecule, and the presence of histones, centrioles, and spindle fibers.
What is the interphase?
The interphase occurs before cell division. It is composed of the G1, S, and G2 stages.
During the G1 stage, the cell duplicates in size. The organelles and other cytoplasmatic structures duplicate. The high intense biochemical activity is characteristic of this stage.During the S stage occurs the DNI replication process. At this point, also happens the synthesis of histones and other associated proteins. This is the only stage where the DNI molecule is replicated. The G2 stage is the final one before the cellular division. Here begins the slow process of DNI condensation. Duplication of centrioles completes. Structures such as spindle fibers are assembled.To determine which culture was in G stage, and which was in S stage, I would look at DNA molecule. The only stage in which DNA duplicates is during the S phase, so
If organelles are duplicated but not DNA, it is G1 stageIf organelles are duplicated as well as DNA, but the molecule is still lax, it is S phase. At this point there are also histones.If organelles are duplicated and DNA molecule began to condensate it is G2 phase. At this point there are also centrioles and spindle fibers.You can learn more about the interphase at
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1. Which of the following processes takes place prior to cell division and involves copying all of a cells DNA. 1 DNA replication 2translation 3transscription 4protein synthesis
Answer:
Replication.
Explanation:
DNA replication must occur before cell division.
Using the graph above, which answer choice correctly explains why there is a decrease in the rate of photosynthesis between the wavelengths of 500 to 600 nanometers (nm)?
A
Chlorophyll a absorbs wavelengths of light between 500 to 600 nm.
B
Chlorophyll a begins to disintegrate at low wavelengths of light.
C
Chlorophyll a reflects wavelengths of light between 500 to 600 nm.
D
Chlorophyll a begins to disintegrate at high wavelengths of light.
Answer:
A
Chlorophyll a absorbs wavelengths of light between 500 to 600 nm.
Place the tiles in order.
Answer:
nebula, protostar, supergiant, supernova, neutron star
What are the 2 types of eukaryotic cells? (select all that apply)
prokaryotic
animal
virus
plant
Answer:
Plant and animal
Explanation:
how many organelle has a membrane system and their name?
There are 6. Lysosome, Endoplasmic Reticulum, Golgi Apparatus, Chloroplast, Nucleus, Mitochondrion
PLEASE WRITE IN OWN WORDS, HELP!
Answer:
Evolution means change in the physical features of an organism.
Explanation:
Evolution means change in the physical features of an organism. Evolution occurs in the population of an organisms due to various factors such as mutation, non-random mating and natural selection. Nonrandom mating occurs when an organism prefer mating with particular superior organisms or with the similar organism. Mutation in the genetic makeup of an organism is also responsible evolution. this mutation occurs when an organism experience ultraviolet radiation from the sun, or also occur if an error in DNA during cell division. Gene flow is also known as gene migration is the transfer of genetic material or traits from one population to another when the organism is migrated to another environment. Some organisms are selected naturally because they have the potential to survive in that environment so they survive and that doesn't adopt itself to the environment, it will extinct from the environment.
what groups are most vulnerable to fine particle air pollution?
Answer:
Infants, children and teens, People with lung disease, Current or former smokers
Draw model using the following terms: allele, gene locus, and chromosome. Be sure to draw arrows to specify where you are labeling!
Answer:
I am not sure where we should draw from
Explanation:
???
What is DNA?
Byeeee, I'm leaving brainly, just giving points to those who need.
Answer:
deoxyribose nucleic acid
Answer:
Thx, for the free points!!! : ) Why are you leaving brainly tho?
Explanation:
how can you use your ears to help you find where a sound is coming from?
Answer:
WELL UMMMMM.....
Explanation:
THERE ARE SOUND WAVES THAT TRAVEL THROUGH THE AIR AND YOUR EAR HEARS SOUNDS FROM THAT SO YAAA
Answer:
Sound waves travel through a medium(Solid, Liquid, and gas). So, the higher the frequency of a sound the more likely you are to hear it, also, we use our ears by listening to sound page. The ears detect sounds by listening
Which traits where dominant in Mandel's experiments
_White Flowners
_Purple Flowers
_Yellow seeds
_Green Seeds
_Wrinkled Seeds
_Round Seeds
_Smooth Pods
_Bumpy Pods
_Short Stems
_Long Stems
Answer:
The only one I know is yellow seeds
Explanation:
RNA differs from DNA by which of the following?
1. RNA has uracil rather than thymine
II. RNA is single-stranded versus DNA's double strands
UI. Ribose is in RNA, while DNA has Deoxyribose
IV. RNA has phosphate, while DNA has sugar
a
b
I, II and III only
II, III and IV only
I, II and IV only
I, III and IV only
С
d
Describe how commercial fishing by humans can have a negative impact on the balance of organisms in an aquatic environment.
Answer:
Aside from reducing fish stocks, unsustainable fishing practices can have other negative impacts on the marine environment. For example, some fishing techniques such as dredging and trawling can cause widespread damage to marine habitats and organisms living on the sea floor.
Humans have a ________________________ effect on the environments of which they are a part
Answer:
Negative or positive because some are good and some humans are bad
:
Answer:
physical
Explanation:
hope this helps
In eukaryotes, what is the term used for codons that do not code for proteins that are interspersed with those that do? introns codons neurons exons
In eukaryotes, what is the term used for codons that do not code for proteins that are interspersed with those that do?
introns
Please help me someone please
Answer:
Conduction
Explanation:
Heat moves from hot sand to the bottoms of your feet by conduction. Conduction is the transfer of heat between objects that touch each other.
Pls help :(
Can humans make changes in their lifestyle choices to limit global warming? Provide at least three examples to support your
claim.
why are plants called nature's purifier?
☁️ Answer ☁️
Plants are called as natures air purifiers because they perform photosynthesis in which they take in carbon dioxide from the atmosphere and give out oxygen .
❤️
plants are a natural type of filter and can purify the air of harmful contaminants. It’s no wonder why the air purifier vs indoor plants debate is such a hot topic. Unfortunately, plants can’t absorb all forms of air pollution.
Hope it helps.
Have a nice day hyung/noona!~ ￣▽￣❤️
what are the living organisms that reproduce by binary fission (Asexual reproduction)?
Define biodiversity and the importance of diversity in ecosystems. How could humans harm an ecosystem's biodiversity?
Answer:
Biological diversity - or biodiversity - is the term given to the variety of life on Earth and the natural patterns it forms. The biodiversity is the fruit of billions of years of evolution, shaped by natural processes and, increasingly, by the influence of humans.
Explanation:
Biodiversity is important to humans for many reasons. ... Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services. If no changes are made in the ways humans use resources on earth, there will continue to be a degradation of biodiversity until human lives can no longer be sustained. Humans affect biodiversity by their population numbers, use of land, and their lifestyles, causing damage to habitats for species.
I NEED HELP PLSSS I WILL MARK BRAINLEIST XDD!
Answer:
B. Gravitropism
Explanation:
I think because gravity makes the roots go down???
What steps are involved when a planarian needs to generate new cells
Answer:
Using this technique, which they termed 'chemical amputation', the team induced lesions in planaria and investigated which genes were activated over the course of the regeneration process. The pharynx lacks neoblasts, but cells near the wound quickly start dividing and regenerate the amputated organ.
The steps which are involved when a planarian needs to generate new cells include the different stages of regeneration.
What is Regeneration?Regeneration in the planarians depends on the presence of stem cells called as neoblasts. These newly formed cells are distributed throughout the body and, when part of the worm has been amputated, these parts are activated to reform the tissues which have been removed.
Planarians also use this extraordinary regenerative ability to reproduce asexually. Through the process of transverse fissions, planarians which anchor their tails and also essentially pull themselves apart from each other, resulting in two fragments which include one head and one tail that will regenerate into two genetically identical worms.
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Protists are a group of unicellular organisms that are eukaryotic. However, they are a diverse group, with some of the members of the group having a more recent evolutionary ancestor in common with plants while others have a more recent common ancestor with animals. Euglena are protists that are more closely related to plants than any other group. Which characteristics would euglena share with plants but NOT with animals? Choose ALL that apply.
Answer:chloroplasts and cellulose cell wal
Explanation:
The correct options are:
ChloroplastsCell wallsAutotrophicWhat are protists?Protists are a diverse group of eukaryotic organisms that are not animals, plants, or fungi. They are typically unicellular but can also be multicellular or colonial. Protists can be found in a variety of environments, including freshwater, marine, and soil, and can be free-living or symbiotic. They are an ancient group of organisms, and some of the earliest eukaryotes were likely protists.
The diversity of protists is immense, and they exhibit a wide range of characteristics and behaviors. Some protists are photosynthetic, using pigments like chlorophyll to capture sunlight and convert it into energy. Others are heterotrophic, consuming other organisms or organic matter. Some protists are capable of moving through their environment, using structures like flagella, cilia, or pseudopodia to propel themselves. Because of their diversity and importance in many ecosystems, protists are an important area of study in biology.
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Which of these are reptiles? Select all that apply.
lizards
snakes
turtles
lampreys
tortoises
crocodiles
dinosaurs
alligators
Answer:
lizards, snakes, turtles, tortoises, crocodiles, alligators and dinosaurs
Explanation:
Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, alligators, lizards, turtles, and tor- toises. Also dinosaur is a large reptile which appeared 251 million years ago.
Which of the following is a side effect of hallucinogen? *
Scurvy
Infertility
Anaemia
Heart disease
Answer:
heart disease is correct
Complete the sentence using the correct term.
____ are tree surgeons, and their work mainly involves planting and transplanting trees.
[There is no multiple choice]
Answer:
arboriculturists or arborists
Explanation:
are also know as tree surgeons
Arborists are tree surgeons, and their work mainly involves planting and transplanting trees.
Who are arborists?Tree experts known as arborists must have comprehensive certificates. Arborists are qualified experts with training in the planting, upkeep, care, and diagnosis of trees, shrubs, and other woody plants. They are experts in all tree and shrub species and can provide knowledgeable guidance on how to cultivate and develop trees.
Professional, educated arborists are aware of how to care for trees in a way that promotes both the health of the tree and public safety. Pruning or removing trees, especially huge trees, can be risky work. Trees are an investment that requires regular tree care.
Thus, Arborists are tree surgeons, and their work mainly involves planting and transplanting trees.
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Which of the animal offspring is not similar to their parents?
a) Frog
b) Horse
c) Cat
Answer:
frog is the answer okkkkkkkkkkkkkkkk
Frog
because a baby frog is called a tadpol
Water is being added to split sucrose apart into 2 simple sugars. What is the name for this process?
Group of answer choices
hydrolysis
dehydration synthesis
condensation
polymerization
Answer:
2 and 3 mate
Explanation:
hope it helps mark me as the brainliest
The photo shows a toy spring. Which kind of energy does the toy have because of its shape? A. Elastic B. Electrical C. Nuclear D. Chemical
Answer:
A. Elastic
Explanation:
Answer:
A. Elastic
Explanation:
answer approved
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