Answer:
Translation takes place in 3 main steps: initiation, elongation and termination.
In initiation, the ribosome binds with the mRNA strand and a initiation complex forms. An initiator tRNA molecule brings the first amino acid, methionine. It binds with the start codon using its anticodon, UAC. The large ribosomal subunit then binds to the small ribosomal subunit.
In elongation, more charged tRNAs bring the amino acids to be added on the growing polypeptide chain. Elongation continues until the ribosome encounters the stop codon.
In termination, a release factor binds to the stop codon, causing the polypeptide to be released from the ribosome. The ribosomal subunits separate from the mRNA and from each other. The polypeptide undergoes folding to form secondary and tertiary structures to become a fully-functional protein.
Notes:
• Translation is the process by which a protein is synthesized from mRNA.
• mRNA: messenger RNA
• tRNA: transfer RNA
• codon: A 3-nucleotide sequence that codes for a specific amino acid. For example, AUG codes for methionine.
Blood supply to an arm is cut off. Blood in the arm is sampled after
five minutes and analyzed. Which of the following would occur?
Concentration of HHb
A.
B.
C.
D
Concentration of HbO2
high
low
low
Concentration of HCO3
low
high
high
low
high
o
B
A
OC
Answer:
Blood Flow restriction training involves cutting off 50-80% of arterial ... Blood Flow restriction can be used on the arm or leg and the tourniquet is ... minutes, which is enough time to induce a hypertrophy response, but will not cause limb damage. ... Back; 3D Run Analysis · Dry Needling · Weightlifting Analysis
Explanation:
explain what would likely happen if there were no shrimp in the close ecosystem
Answer:
It greatly affect population of fish.
Explanation:
If there were no shrimp in the close ecosystem then many fishes die due to lack f food because shrimp is the food of many small and large fishes. They also play a great role in protection of fish's skin by eating parasite, bacteria and fungi present on their skin so it also act as scavengers so if these shrimps are not present many fishes die due to various diseases and the ecosystem would be disturb.
Why must transcription occur where DNA can be found?
because DNA can't leave
O because DNA polymerase is found there
O because ribosomes are in the nucleus
O because helicase unzips the DNA
Answer:
because DNA can't leave
Explanation:
Transcription must occur where deoxyribonucleic acid (DNA) can be found: A. because DNA can't leave.
What is transcription?Transcription can be defined as a biological process that typically involves re-writing the information contained within a deoxyribonucleic acid (DNA) into a ribonucleic acid (RNA) by enzyme RNA polymerase.
Generally, the Transcription of deoxyribonucleic acid (DNA) produces a single-stranded ribonucleic acid (RNA) molecule that is the same with the strand of DNA used as the template.
In conclusion, transcription must occur where deoxyribonucleic acid (DNA) can be found in living organisms because DNA can't leave.
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Which of the following is used to screen for carcinogenic potential of various compounds?
transformation testing
replica plating
Ames test
ELISA test
Answer:
Ames test
Explanation:
This is because Ames test is a test that uses bacteria strain i.e Salmonella typhimurium to check or assess of a chemical has carcinogenic effect of it. It uses mutagenicity of bacteria. It is a biological assay that test whether an a chemical can cause mutations in the dna of the test organisms. When mutagens are added and also liver enzymes, there would be a reverse mutation and this will lead to their growth
What are the 7 functions of the cell membrane?
Do you think murder committed during sleep walking is a punishable offense? Why?
Answer:
no because ur sleep walking and u cant control that
Answer:
yes and no
Explanation:
because when your asleep you dont know what your doing and when you get woken uo you tend to get violent so yea
The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?
Group of answer choices
carbohydrates
proteins
lipids
nucleic acid
Answer:
The correct answer is ''proteins.''
Explanation:
Transport phenomena are essential in living beings, either to carry a hydrophobic molecule through an aqueous medium (transport of oxygen or lipids through the blood) or to transport polar molecules through hydrophobic barriers (transport through the cell membrane). Biological transporters are always proteins. Proteins are capable of carrying out specific functions such as the selective transport of molecules, or certain enzymatic reactions, among others. Membrane proteins can be peripheral or partially or totally integrated into the membrane, being, generally, globular or fibrous. Its activity is essential for the maintenance of transmembrane gradients. Thanks to membrane proteins, the exchange of molecules such as nutrients or waste products takes place, as well as the reception of external signals. Among its functions are channel-forming: Integral proteins arranged in the membrane in such a way that they give rise to the formation of a pore or channel, usually hydrophilic. These pores or channels allow the entry and exit of certain substances from the cell.
In actuality, the DNA sequence of the human genome is NOT random. Some sequences, including some very large sequences, are repeated many times throughout the human genome. Write two ideas you have for how this fact complicates the use of CRISPR gene-editing technology in humans.
Answer:
repeated DNA sequences decrease the target specificity of the CRISPR-Cas system, and may lead to off-target effects
Explanation:
The CRISPR-Cas system is a versatile and powerful tool for gene editing. This gene-editing tool consists of a single guide RNA (sgRNA) that guides the Cas endonuclease protein to the appropriate genomic locus, where Cas generate a double-strand break in the DNA and thus induces DNA repair either by Non-homologous end joining (NHEJ) or Homologous Recombination (HR) repair pathways. The sgRNA consists of a 17-20 nucleotide sequence which is complementary to the target DNA, this sequence is called crispr RNA (crRNA). The existence of repeated DNA sequences hampers the specificity of the CRISPR-Cas tool because a particular sgRNA is able to guide Cas9 to different genomic loci that have the same (repeated) nucleotide sequence complementary to the crRNA. In consequence, repeated DNA sequences may lead to undesired off-target effects, i.e., unintended cleavage (and therefore unintended mutations) at untargeted genomic sites.
Select all that are true regarding ATP cycling
A. ATP is formed from ADP and phosphate
B. Energy for ATP synthesis comes from the oxidation of glucose and other fuel molecules
C. ATP hydrolysis is an endergonic reaction
D. Oxidation of ATP can be used for performing endergonic reactions in the cell
Answer:
A, B and D are correct
Explanation:
Adenosine diphosphate (ADP) can form a bond with a phosphate group to form Adenosine triphosphate (ATP), which is the most abundant energy carrier molecule in cells. An endergonic reaction is a chemical reaction where there is a net input of energy, while an exergonic reaction generates energy. ATP hydrolysis releases energy (conversely to ATP synthesis that requires an input of free energy), and therefore ATP hydrolysis is an exergonic reaction. ATP hydrolysis releases around 7.3 kilocalories per mole. In a coupled reaction, the energy released by ATP hydrolysis is used by the cell to carry out endergonic reactions in an exergonic manner (e.g., glucose phosphorylation, which is an energetically unfavorable reaction).
Why would you consider amphibians to have great biodiversity?
Amphibians are vertebrates in the class Amphibia that includes frogs, toads, salamanders, newts, and caecilians (wormlike amphibians). Amphibian species are considered important biological indicators of the health of an ecosystem because they live in both aquatic and terrestrial environments.
In which parent could chromosomal rearrangement have made an X chromosome with 2 fur color alleles?
Answer:
Mother
Explanation:
(see image below)
According to the given situation, the mutation needs 2 X chromosomes and only the mother has 2 X chromosomes whereas a father has X and Y chromosomes.
What are the 23 chromosome pairs?Humans have 23 pairs of chromosomes, 22 pairs of numbered chromosomes, and 1 X and Y chromosome (father) and mother have (XX) chromosomes.
Each parent donates one chromosome to each pair so that offspring get half of their chromosomes from their mother and a half from their father.
Thus, the mother is an answer.
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Which conclusion is supported by the fact that meat-packers cannot sell meat that has been infested with certain parasites?
O Parasite infestations are rare and disastrous.
Parasite infestations lead to economic loss.
Parasite infestations topple even lucrative farms.
Parasite infestations are easily prevented.
Answer:
Parasite infestations lead to economic loss
Explanation:
Parasites are organisms that live on or in another organism called the 'host', obtaining their food or some other benefit (e.g., a suitable habitat/environment) from this host. Most parasites are known to affect their hosts by invading their organ systems, thereby producing parasitic infestations. In livestock, parasitic infestations can produce substantial losses of productivity. Some of the most important factors associated with parasitic infestations include, among others, poor hygienic conditions, contaminated water, unmanaged livestock waste, etc.
The correct answer is Parasite infestations lead to economic loss.
The term "parasite" refers to an organism that lives on or in another organism, or "host," and depends on it for food or some other advantage (such as a suitable habitat or environment). The majority of parasites are known to infest their hosts' organ systems and negatively impact them, resulting in parasitic infestations. Infestations of parasites in animals can result in significant productivity losses. Poor hygienic conditions, unclean water, uncontrolled livestock waste, etc. are some of the most significant causes linked to parasite infestations.
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How does global warming affect earth’s troposphere?
Answer:
Most of the world's weather originates in the troposphere, a second scientist tells Carbon Brief, meaning that changes to seasonal temperatures could be affecting the likelihood of extreme weather events, such as flooding and drought.
Why is the normal range for the mass of DNA in a male cat cell lower than for a female cat?
Answer:
It's B
Explanation: I answered it right on gizmos.
What type of energy continuously produces heat and light?
Answer:
Nuclear fusion.
1. Discuss how the study of fossils provides strong evidence for evolution. (13.2 and 13.3)
Answer:
in fossils we see homologous structures that suggest a common ancestor.
By looking at the bones of the arms and comparative anatomy we see the similar structure and function that is retained.
When looking at other animals like birds we see Analogous structures that look similar but have a different function (flying).
Finally we see Vestigial structures which are structure that no longer function as they once were used for. An example of this is the coccyx (tail bone in humans) compared to tails in dogs, cats, monkeys, etc.
Explanation:
Explain how organisms can compete for abiotic factors in an ecosystem.
Answer:
An organism's niche includes food, shelter, its predators, the temperature, the amount of moisture the organism needs to survive, etc. When two or more individuals or populations try to use the same limited resources such as food, water, shelter, space, or sunlight, it is called competition.
the length and breadth of a rectangular Courtyard is 90 m and 42 m find the distance covered by a boy if it takes 5 rounds of courtyard
Answer:
Area = L × B
= 90 × 42
= 3780 m
According to the question
He takes 1 round in 3780m
So ,
5 round = 5 × 3780
=18900
Explanation:
Question 18 of 20 :
Select the best answer for the question.
18. How has the use of herbicides affected agricultural productivity?
O A. Fewer pesticides are needed because of parasitoids.
OB. Fewer people are needed to weed because of herbicides.
O C. Fewer crops are produced because of herbicides.
O D. Fewer crops are organic because of the use of Bt toxin.
O Mark for review (Will be highlighted on the review page)
Answer:
B. Fewer people are needed to weed because of herbicides.
Explanation:
Herbicides are chemical substances specifically used to control the widespread growth of weeds i.e unwanted plants. Using herbicides has been useful in eradicating the weeds that pose a great threat to agricultural productivity.
Since chemical control (herbicides) has proven to be a faster and effective method, fewer people are needed to involve in the physical control of weeds i.e. weeding. Hence, the use of herbicides has affected agricultural productivity by helping to reduce the amount of laborers.
Crickets "chirp" by rubbing their wings or legs over each other. This phenomenon is known as stridulation. It is a means by which male crickets "call" to females to communicate their interest in mating. Frequency refers to the number of chirps that crickets produce during a period of time. Some have suggested that you can tell the temperature and the humidity based on how fast crickets chirp.
Required:
a. What is the effect of temperature on the frequency of cricket chirping? As the temperature rises, the cricket chirp occurs more rapidly therefore increasing.
b. What is the effect of humidity on the frequency of cricket chirping? As the humidity rises, the cricket chirp frequency occurs more rapidly therefore increasing.
Answer:
a. As the temperature rises, the cricket chirp occurs more rapidly therefore increasing. It is correct.
b. As the humidity rises, the cricket chirp frequency occurs more rapidly therefore increasing. It is incorrect. The increase in humidity does not affect the chirp frequency in crickets.
Explanation:
As temperature increases, the frequency of cricket chirp increases too. After listening to the audios, we can see that in the first audio, where the temperature is 14° Celcius, the frequency is 24 chirps in 15 seconds. In the second audio, with 19° Celcius, the frequency is 28 chirps in 15 seconds. In the last audio, where the temperature is 24° Celcius, the chirp's frequency is 34 chirps in 15 seconds. In conclusion, if the temperature increases, the chirps' frequency increases too.
As humidity increases, the frequency of the chirp does not. In the three audios, the number of chirps in 15 seconds was 20. We can conclude that humidity does not affect the frequency of chirps frequency.
What will happen to a plant if put in a box with only one hole?
Answer:
does it have water and sun through the hole?
Explanation:
if not it will die. if you specify i will edit my answer.
Answer:
yes if watered but it would have drainage problems
Explanation:
hope this helps sorry if it doesn't have a good rest of your night :) ❤
Of the following statements, which is not a common myth regarding hypnosis?
A. Hypnotized people can relive the past.
B. Hypnotized people are less focused on their surroundings.
C. Hypnotized people lose control of themselves.
D. Hypnotized people can remember the past accurately.
Please select the best answer from the choices provided
Answer:
D
Explanation:
The common myth regarding hypnosis is Hypnotized people can remember the past accurately.
Who are hypnotized people?Focused attention (the selective attention/selective inattention hypothesis, SASI), decreased peripheral awareness, and an improved ability to respond to suggestion are all characteristics of hypnosis in humans.
Conflicting ideas exist to explain hypnosis and related phenomena. According to beliefs about altered states of consciousness, hypnosis is an altered mental state or trance characterized by a heightened level of awareness beyond that of ordinary consciousness.
A person is reported to have improved focus and concentration while under hypnosis, as well as a greater receptivity to suggestions.
Therefore, The common myth regarding hypnosis is Hypnotized people can remember the past accurately.
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How does global warming affect earth’s troposphere? Use information from the text to support your answer.
It’s super important i will mark brainliest for the best
Answer:
Most of the world's weather originates in the troposphere, a second scientist tells Carbon Brief, meaning that changes to seasonal temperatures could be affecting the likelihood of extreme weather events, such as flooding and drought.
Explanation:
is comparing a typical uncontained Influenza outbreak with the current quarantine/social distancing Coronavirus outbreak a legitimate comparison?
Answer:
yes because all deises start out bad but as you can see after a few months and after the vaccine our numbers have slowed down quite a bit.
Explanation:
A team of scientists is studying several plant species that they think could become new farm crops. The scientists want to apply selective breeding to
develop one of the species into useful crop plants.
Which property of a plant species would be MOST USEFUL for meeting the scientists' goal?
A. very low genetic variation
B. very high genetic variation
C. producing only a few fruits and seeds each growing season
D. growing slowly from seedlings to maturity
You are given a sequence of DNA and told that it is human. You are asked to find out its identity and whether it has similarity to sequences in other organisms. Please describe the bioinformatics tool, the database, and the procedure you would use to find such information. Give two possible outcomes of your search.
Answer:
The summary of the question has been summarized throughout the explanation segment below.
Explanation:
BLAST seems to be the most commonly utilized sequencing correlation platform. BLAST seems to be a methodology as well as an operation for the comparison of primary physiological sequence data. Instead with BLAST, we're going enough to get some successfully predicted gene mutation new variant. Look for, racial identity percentage points and sometimes even E Value percentage points lookup pattern.This should start giving extensive information such as which life forms the component has been transcribed. And we'll get documentation about everything from the gene, exon, and so on., connection to the enzyme interpretation.
The ______ function of the nervous system is to gather ______ information and make decisions that affect ______ functions.
motor; integrative; sensory
motor; sensory; integrative
integrative; sensory; motor
Explanation:
integrative; sensory; motor
hope it helps!
Cellular respiration extracts energy from what ?
Answer:
ATP, from glucose.
Glucose is from the food we eat.
What is the wavelength of an X-ray whose frequency is 2.0 × 1018 Hz? Hint: An X-ray is an electromagnetic wave, so its velocity is equal to the speed of light (3.0 × 108 m/s).
A.
1.5 × 10-10 m
B.
3.0 × 10-8 m
C.
6.0 × 10-9 m
D.
0.6 × 10-11 m
Answer:
A. 1.5 × 10-10 m
Explanation:
Given the following data;
Frequency = 2.0 × 10^18 Hertz.
Speed of light = 3.0 × 10^8 m/s
To find the wavelength;
Wavelength = speed/frequency
Substituting into the equation, we have;
Wavelength = 3.0 × 10^8/2.0 × 10^18
Wavelength = 1.5 × 10-10 meters.
g One benefit of operons in bacteria is that they a. do not need ligands and regulatory proteins as single genes would. b. do not need any modification of the proteins after they are expressed. c. allow for alterations in DNA sequence by flipping promoters around. d. allow for coordinated gene expression of related genes on one mRNA controlled by one promoter. e. allow the bacteria to use a wide variety of carbon sources.
Answer:
d. allow for coordinated gene expression of related genes on one mRNA controlled by one promoter.
Explanation:
An operon is a group of functionally-related genes that share the same promoter region and the same operator which interacts with specific repressors or activators, and they are transcribed as a unit. This transcriptional unit (operon) is present in prokaryotic organisms (i.e., bacteria and archaea) but absent in eukaryotes. In an operon, each structural gene is known as a cistron, and they are transcribed together as a polycistronic primary messenger RNA (mRNA).