Answer:
Sodium chloride removes proteins from DNA and helps in DNA precipitation.
Explanation:
The Deoxyribonucleic acid (DNA) is negatively charged due to the highly polar phosphate groups that make up the phosphate backbone. The molecules of water are also highly polar and they have positive charge, thereby water molecules interact with the negative charges of the DNA. The sodium chloride generates temporary attraction forces between sodium (positive) ions and the DNA backbone (negative), thereby DNA can be disassociated from the aqueous layer. Moreover, sodium chloride helps to remove proteins (histones) that bound to DNA and also helps to maintain proteins in the aqueous layer.
What do scientists use Punnett
Squares for?
A. Finding the possible traits of parent plants
B. Finding the possible traits of ancient
organisms
C. Finding the possible traits of recessive genes
only
D. Finding the possible traits of the offspring of
two plants whose genes are known
Answer:
D. Finding the possible traits of the offspring of two plants whose genes are known
Explanation:
Punnett Squares are used by applying both of the genes of the parent organisms to find the possible traits of the offspring.
How does water get back into the atmosphere in after a rainforest after it rains
A. Water evaporate from the floor of the rainforest
B.Water evaporates from the leaves of the trees
C. Water evaporates from the trunk of the tree in the rainforest
D. What’s water must drain to the river to evaporate into the atmosphere
Answer: B
Explanation:
n a field, water flows down through the soil and then through a layer of loose rocks before the flow stops.
What type of material did the water most likely encounter when it stopped?
1. a layer of granite
2. another soil layer
3. a layer of rocks with cracks
4. another layer of loose rocks
The picture below shows the fossilized remains of an insect trapped in amber. Amber is the
Answer:
i think B is the best answer
Explanation:
What level within an organism is smaller than an organ system?
A. Ecosystem
B. Biome
C. Organ
D. Organism
Answer: i think C
Explanation: The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
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How many types of joints are there in the human body?
A.
4
B.
2
C.
12
D.
6
Answer:
D. six or 6
Explanation:
edg practice test 22
There are six types of joints in the human body. The correct option is D.
What are the different types of joints?Synarthrosis (immovable), Amphiarthrosis (slightly movable), and Diaarthrosis are the three types of joints that can be used functionally (freely movable).
Synarthroses are fibrous, amphiarthroses are cartilaginous, and diarthrosis is synovial, according to the two classification systems.
Joint with a ball and socket. The ball and socket joint, which allows movement in all directions, has one bone's rounded head resting in another bone's cup.
A flexible joint: A door would open and close along one plane and in one direction at the joint. Suspender joint: The saddle joint does not permit rotation, but it does provide backward and forward mobility.
Ball and socket, saddle, condyloid, pivot, and gliding are among the six varieties of freely movable joints.
Therefore, the correct option is D. 6.
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What are the 3 structures that leave from the kidney?
Answer:
an outer cortex, a medulla in the middle, and the renal pelvis in the region called the hilum of the kidney.
Explanation:
Internally, the kidney has three regions—an outer cortex, a medulla in the middle, and the renal pelvis in the region called the hilum of the kidney. The hilum is the concave part of the bean-shape where blood vessels and nerves enter and exit the kidney; it is also the point of exit for the ureters.
In order for evolution to occur, which of these conditions must be met?
Choose the correct answer.
O Populations need to be willing to adapt to their environment.
O Genetic variation needs to exist in the traits of the population.
O All organisms in the population should have the same phenotype.
The allele frequencies for each allele of a particular trait must be equal.
Answer:
population need to be willing to adapt to their environment
The condition that must be present for evolution to take place is that there must be genetic variation within the population.
What is evolution?The term evolution is used to describe the gradual changes that occur in organisms as they move from the earliest forms to the present form.
The condition that must be present for evolution to take place is that there must be genetic variation within the population.
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Which of the following is NOT formed by weathering ? A) sandy beaches B) pavement cracks C)fertile soil D) sedentary rocks
Answer:
B
Explanation:
Answer:
Explanation:
Dont listen to the one below its c
The main symptoms of the HIV-AIDS infection are due to the fact that patient’s body can no longer fight off many minor infections and hence becomes the reason of the patient’s ultimate death. This happens because
Answer:
This is due to the HIV affecting/ weakening your immune system. By attacking and taking over T-Cells. When it has gone to a point where it destroys a majority of your cells it is considered AIDS. Hence HIV/AIDS
Explanation:
Are there any other dead cells in plants other than sclerenchyma cells of sclerenchyma tissue?
Please help.
ASAPPPPPP
Answer:
Parenchyma cells have thin cellulosic cell walls. Collenchyma cells have thicker cellulosic walls and also may have pectin deposition in the corners. Sclerenchyma cells have thick lignified cell walls and are dead at maturity and provide protection to the different parts of the body. Epithelial cells are thin-walled and living.
Answer:
There aren't much other tissues in plants that are entirely dead but there are components of phloem and xylem tissues that are dead.
Those of Xylem are:
Xylem Tracheids
Xylem Fibres
Xylem Vessels
Those of Phloem are:
Phloem fibers
Hope this helps and if u need any more tell me.
^_^
Which basic geometric figure can be labeled as xy
Answer:
A ray can be a basic geometric figure can be labeled as xy .
Explanation:
Answer:
a ray
Explanation:
Which organ breaks down heroin and alcohol?
Answer:
liver
organ breaks down heroin and alcohol
The liver, but that doesn't mean it doesn't mess it up in the process!
Hope this helps!
The table below shows part of the process of DNA replication:
Original DNA Strand
Complementary DNA Strand
A-C-C-G-T-A-C
T-G-G-A-A-T-G
What is the most likely effect this could have on genetic information going forward?
оооо
There will be no change in the genetic information that gets transmitted because the complementary strand will never be used as a template
O There will not be a change in the genetic information that gets transmitted because the cells having the new section of DNA will correct any mutations
There will be a change in the genetic information that gets transmitted due to the complementary strand being used as a template in future DNA replication
There will be a change in the genetic information that gets transmitted because the sections of DNA with mistakes will be passed on to make future generations stronger.
Answer:
There will be a change in the genetic information that gets transmitted due to the mutation in the complementary strand being used as template in future DNA replication.
Explanation:
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What category is what hormones and cholesterol are made of a.carbohydrates b.lipid c.protein d.nucleic acid e.carbohydrate and lipid or f.protein and nucleic acid
When is light produced?
A. when an electron moves down an atomic orbit
B.when two electrons collide
C.when an electron moves up an atomic orbit
Answer: Up
Explanation: when an electron goes up it produces more energy which makes light. :)
explain why you think the vaccine is effective or not effective?
Answer: If bacteria in your body has built up an immunity to the vaccien it isnt effective, if it is the first time you body has encountered the vaccine it should be effective.
Explanation:
help please i’ll mark brainleist
Answer:
I would like to say B
Explanation:
Hopefully this helps!!
Feel free to correct me i'm Wrong :))
I know this is really weird, but I’m doing this game for science club and I can’t figure out what to do! I have to find the colors of and American Kestrel but it’s always wrong. Help!
Answer:
Like what do you need help specifically
have a good day :)
Explanation:
50 POINTS
Read the following genetics topics below. Choose a topic and then decide what side you are on. Remember that there is no "right" or "wrong" side. Ethical questions often have many points of view. Research your topic and write a persuasive essay at least 200 words in length and post it in the essay box below.
Topic 1: Should insurance companies have the right to learn the genetic profiles of the people they insure?
Topic 2: Should employers have the right to learn the genetic profiles of the people they hire? Are there special considerations for employees in jobs in which there is a high risk to others, such as airline pilots, doctors, bus drivers?
Topic 3: Should scientists who identify genes and create new genetic engineering techniques have the right to patent their methods for their own profit?
Answer:
1. Although the Genetic Information Nondiscrimination Act of 2008 bars the use of genetic information for health insurance coverage decisions, it does not do so when it comes to life insurance, disability insurance or long-term care insurance. ... And some insurance companies have already started asking.
2. Employers have the right to learn the genetic profiles of the people they hire so that they know the risks that they are taking should there be complications with an employee's health during his/her stay with the company.Jobs that were mentioned in the above statement do not and are not supposed to have special considerations for such situation because these people are holding the lives of their clients in their own hands every time they are out and doing their work.
3.It takes a lot of hard work to make a valuable discovery in genetic engineering, as in any other area. If the people who do the work aren't allowed to patent their discoveries then anyone can take the discovery and use it. The inventor of the new technique won't get any profit for the hard work done. Nobody will work in a field if they don't get paid for it. The new techniques and discoveries will never be made if the inventors don't get paid for their invention. In any event, the payment doesn't go on forever as patents expire in 20 years.
Explanation:
Answer:
Prompt: Should employers have the right to learn the genetic profiles of the people they hire? Are there special considerations for employees in jobs in which there is a high risk to others, such as airline pilots, doctors, bus drivers?
Answer:
My belief is yes and no. In my opinion, the choice really depends on what the job is. Yes, there would be special considerations for high-risk jobs, including first-aid workers, bus drivers, and pilots, to name a few. For example, if someone who was born with narcolepsy probably wouldn't be the best candidate for any type of transportation job. According to Mayo Clinic, "The cause of narcolepsy isn't well understood but may involve genetic factors and abnormal signaling in the brain." On the other hand, employers who are employing people for a camera company may need to know if one of their employees was color-blind for testing purposes, they wouldn't need to know if their employee was born with it or received it from an STD. However, the fact remains, the employers don't have a 'right' to know the genetics of their employees, and most likely, never will. "Genetic Information and the Workplace" says, "Employers should not obtain or disclose genetic information about employees or potential employees under most circumstances.... An employer should be able to disclose genetic information for research and other purposes with the written, informed consent of the individual."
Explanation:
Proteins are made of amino acids that
are in a specific sequence that is
determined by...
Answer:
The precise amino acid content, and the sequence of those amino acids, of a specific protein, is determined by the sequence of the bases in the gene that encodes that protein. The chemical properties of the amino acids of proteins determine the biological activity of the protein.
Explanation:
The proteins are formed of amino acids that are in a specific sequence, and is determined by the sequence of the bases in the genes.
The chemistry of amino acids:Both as the building blocks of proteins and as intermediates in metabolism, amino acids play an essential role. In a specific protein, the exact content of amino acids, and the amino acid sequence are predicted by the sequence of the bases in the gene that encrypts that protein.
The biological activity of the protein is determined by the chemical properties of the amino acids.
Thus, the specific sequence of the proteins is determined by the sequence of the bases in the genes.
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Which statement best explains the genetic variation that results from sexual
reproduction?
A. Each chromosome contains many copies of the same gene,
B. Offspring receive a mix of genes from two different parents,
C. Each chromosome contains many different genes,
D. Offspring receive genes that are exactly the same as one parent's
genes
answer is b
Explanation:
aa in the anaphase of cell division crossing over and random assortment of genes happen so the genes are getting mixed up together
Answer:
b
Explanation:
ap3x
Well it’s food science but yeah
Answer:
B
Explanation:
Answer:
B. When there's a high turnover rate among the staff
Explanation:
How are viruses different from bacteria?
Bacteria are heterotrophic, while viruses are autotrophic.
Bacteria are living organisms; viruses are not.
Bacteria have a membrane-bound nucleus, while viruses do not.
Bacteria are multicellular; viruses are single cells
Answer:
B) Bacteria are living organisms; viruses are not
Explanation:
I took the test and got 100
Microorganisms are often disease causing agents. Viruses are different from bacteria in the sense that they are nonliving things.
What are microorganisms?Microorganisms are those infectious agents that we can not see yet they cause the myraid of diseases around us.
The differece between the viruses and the bacteria is that bacteria are living organisms; viruses are not.
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When the sun changes the water on Earth's surface into gas that rises up to form clouds is called ______.
Answer:
water vapor
Explanation:
Energy from the sun changes the water on Earth’s surface into a gas that rises up to form clouds. The gas is called water vapor. The water vapor in clouds moves through the atmosphere until it falls to Earth’s surface again.
Answer:
Condensation
Explanation:
The processes of transcription and translation are critical pieces of gene expression to produce proteins in all living cells on earth.
Which statements correctly differentiate transcription and translation? More than one statement may apply.
es -)
A)
B)
09
Transcription requires an RNA template while translation uses a DNA
template.
Transcription is performed by prokaryotes while translation' is performed by
eukaryotes.
Transcription occurs in the nucleus while translation occurs in the
cytoplasm in eukaryotes.
Transcription produces an mRNA molecule while translation converts the
code from mRNA into a protein
Transcription require RNA polymerase while translation requires ribosomes
to build their end product molecules.
D)
E)
Answer: c) Transcription occurs in the nucleus while translation occurs in the cytoplasm in eukaryotes, D) Transcription produces an mRNA molecule while translation converts the code from mRNA into a protein, E) Transcription require RNA polymerase while translation requires ribosomes to build their end product molecules
Explanation:
The central dogma of molecular biology involves two cellular processes, transcription and translation. The process occurs at different sites in the eukaryotic cells.
The correct options are:
Option C: Transcription occurs in the nucleus while translation occurs in the cytoplasm in eukaryotes
Option D: Transcription produces an mRNA molecule while translation converts the code from mRNA into a protein
Option E: Transcription requires RNA polymerase while translation requires ribosomes to build their end product molecules
The explanation for transcription and translation can be given as:
1. Transcription takes place in the nucleus, whereas translation occurs in the cytoplasm of a eukaryotic cell.
2. Transcription is the process of decoding the message from DNA to mRNA. Translation occurs after transcription, in which messages coded into mRNA are converted into polypeptides.
3. The enzymes are essential for catalyzing processes like transcription and translation. The transcription is carried out by RNA polymerase, whereas translation requires ribosomes to build products.
Thus, translation and transcription are the two parts of the central dogma.
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When do the scientists working in the exclusion zone need to wear all of their protective gear? For radioactive wolves
Answer:
all the time
Explanation:
The radioactive wolves is a documentary film made on the Chernobyl radioactive disaster. This place is known as the Chernobyl exclusive zone and human trespasses is prohibited here.
A team of scientist went to the Chernobyl exclusive zone to do some research on the life of the wild animals in that place after the disaster. A large number of animals now are carrying particles of radioactive elements in their body and is roaming in the forests of the world.
So the scientist visiting the exclusive zone must wear the protective gears all the time they are in the place so as to prevent themselves from exposing themselves to the radio active elements.
What percentage of Earth’s surface is covered by water?
Group of answer choices
100%
67%
42%
0%
Answer:
71 %
Explanation:
Answer:
67%
Explanation:
They wondered how the insides of the single-celled organisms compared to the insides of animals. This is what they said:
Lanny: “I don’t think they have any of the organs animals have.”
Dorothy: “I think they have a few of the organs most animals have.”
Seamus: “I think they have a few of the organs simple animals, like worms, have.”
Nick: “I think the only organs they have that animals also have are the digestive organs.”
Valynda: “I think the only organs they have that animals also have are the organs they use for breathing.”
Brian: “I think they have all of the organs that most animals have, they are just a lot smaller.”
Which person do you agree with the most? ______________
Explain why you agree. Describe what you think you would see if you could look inside a single-celled organism with a powerful microscope.
Answer:
Nick
Explanation:
WRITE THE FACTORS WHICH RATE OF TRANSPIRATION
Explanation:
The answer is here ..Hope it will help you