Answer: would be emigration
Explanation: When the death rate shoots up in a particular environment due to certain factors organisms are bound to emigrate away for such environment to avoid death from reaching them
A particular plant has two alleles that control the length of its stem. t represents the dominant allele that codes for a tall stem, and t represents the recessive allele that codes for a short stem. based on the punnett squares, which two statements are true about the genotype of the plant’s stem length?
A particular plant has two alleles that control the length of its stem. T represents the dominant allele that codes for a tall stem, and t represents the recessive allele that codes for a short stem. Based on the Punnett squares, which two statements are true about the genotype of the plant’s stem length?
First Generation
__t_ t
T Tt Tt
T Tt Tt
Second Generation
__T_ t
T TT Tt
t Tt tt
Select all the correct answers.
A) Plants with short stems are homozygous for that trait.
B) Plants with tall stems are always homozygous for that trait.
C) Both parent plants in the second generation are heterozygous.
D) Both parent plants in the second generation are homozygous.
The correct answers are options A and C.
How, explain your answer briefly?The Statement A says that the plants, which have a short stem is homozygous for the trait. According to the question, the allele for the short height is recessive. A recessive trait can only be observed, when the dominant allele is not at all present. Hence, the plant must have tt allele, so, the plant having short stem would be homozygous recessive.
The statement C says that the both parents in second generation are heterozygotes. It is given that the parents in the second generation have aa genotype Tt. In this case, both the alleles are different, hence, the parent plants are heterozygotes.
Thus, this could be the answer.
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please help i need to turn this in
Answer:
DNA mRNA Amino acidsGCA CGU Arginine
ATG UAC Tyrosine
CAC GUG Valine
After deletion of "G".
DNA mRNA Amino acids
CAA GUU Valine
TGC ACG Threonine
AC UG ---
Answer:
Normal Strand: alanine - methionine - histidine
Mutated Strand: glutamine - cysteine - no third amino acid.
Explanation:
Messenger ribonucleic acid (mRNA) is the RNA that is used in cells for protein synthesis. It has a single strand made by the transcription of DNA by RNA polymerase. It contains four nucleotides: Adenine (A), Guanine (G), Cytosine (C), and Uracil (U).
Before transcribing, we need to create the complementary strand of the DNA. We're going to write out the nucleotides of the complementary strand by matching the nucleotides in these pairs: (A & T) and (C & G).
Normal Strand: GCA ATG CAC
Complementary Strand: CGT TAC GTG
Next, we can transcribe this to find our mRNA. We're going to do the same thing to the complementary DNA strand, but with Uracils instead of Thymines. So our pairs are: (A & U) and (C & G)
Complementary DNA Strand: CGT TAC GTG
mRNA Strand: GCA AUG CAC
You'll notice that the mRNA strand is almost exactly like the new mRNA strand, but with Uracil instead of Thymine.
Each set of three nucleotides is known as a codon, which encodes the amino acids that ribosomes make into proteins. To read the codons, you need to have a chart like the one I attached. Start in the middle and work your way to the edge of the circle. Some amino acids have multiple codons. There are also "stop" and "start" codons that signify the beginning and ends of proteins.
mRNA Strand: GCA AUG CAC
Amino Acids: Ala Met His
Our sequence is alanine, methionine, and histidine.
A frameshift mutation occurs when a nucleotide is either added or removed from the DNA. It causes your reading frame to shift and will mess up every codon past where the mutation was. This is different than a point mutation, where a nucleotide is swapped because that will only mess up the one codon that it happened in. Frameshift mutations are usually more detrimental than point mutations because they cause wider spread damage.
Let's repeat what we did earlier on the mutated strand to see what changed.
Mutated Strand: CAA TGC AC
Complementary Strand: GTT ACG TG
---
Complementary DNA Strand: GTT ACG TG
mRNA Strand: CAA UGC AC
---
mRNA Strand: CAA UGC AC
Amino Acids: Glu Cys X
---
Our amino acid sequence is glutamine, cysteine, and no third amino acid.
As you can see, removing the first nucleotide of the strand caused every codon to change. The last codon is now incomplete and won't be read at all. If this happened in a cell, the protein that was created from this mutated strand would be incorrect and may not function completely or at all.
What is the purpose of
statistical analysis?
A. to compare the data to the hypothesis and the
difference between the expected values and the
results
Hope
C. to list the observations of the experiment and
develop a hypothesis
B. to state the best possible outcome of the
experiment
D. to organize the data from the experiment into
a chart
Answer:
A.
Explanation:
Give reason for diversity of angiosperms
ANSWER
Both flowing plants and animal pollinators are incredibly diverse. One reason for this diversity is the close
relationship they have with one another. Over many years, some flowers and pollinators have influenced each
other's evolution. Today, when flower-pollinator pairs have traits that work very well together, it's a sign
this kind of evolution may have happened.
ou add a fluorescent antibody to a cell surface protein to a dish of cells. Looking at an individual cell under the microscope the entire surface of the cell is fluorescent. You then hit the cell with a brief pulse from a laser which bleaches out part of the fluorescence on the cell. Over time you notice that the entire surface of the cell becomes fluorescent again. What is the best explanation for this observation
The best explanation for this observation is that the proteins from parts of the cell membrane that were not bleached with the laser diffuse into regions of the membrane that were bleached.
What is an observation?It should be noted that observation means the active acquisition of information from a source.
In this case, the best explanation for this observation is that the proteins from parts of the cell membrane that were not bleached with the laser diffuse into regions of the membrane that were bleached.
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VALUE BASED QUESTION (Write in about 50-100 words)
Consider the following two cases: (Please give answer ASAP)
(i) A forest that is rich in biodiversity sees a decline in the animal population and clearing of a large
part of the forest. The Government declared it as a biodiversity hotspot and the forest regained its
species richness in few years.
(ii) A lake that is rich in marine fishes sees a decline in its species population due to over harvesting.
The people living in the area made the lake a sacred grove and started worshipping it. The species
population of the lake again became normal.
Answer the following questions based on the above information:
(i) Which values are being promoted in the above cases?
Case 1:-
Case 2:-
(ii) Suggest some ways in which you can contribute to this concern.
Case 1:-
Case 2:-
(iii) What would have been the effect if the forest was not declared a biodiversity
hotspot?
The value that can be withdrawn from case 1 is the activeness of the government that takes some crucial steps to maintain the biodiversity of the forests. The value that can be withdrawn from case 2 is the sincerity of native people towards nature who make a lake a sacred grove and start worshipping it in order to maintain the biodiversity of that lake.
What is Biodiversity?Biodiversity may be defined as the sum total of all the living entities living in a particular area at a given time.
For maintaining the biodiversity of the forest as well as a lake, it is required not to deteriorate the natural ecosystem of those regions by human activities like over grazing, forest fires, over harvesting, industrialization, etc.
If the forest has not been declared a biodiversity hotspot, the time will not be far to announce that a forest becomes a bare area, where no species live, survive, and reproduce naturally.
Therefore, it is well described above.
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Most human cells range from 10 to 15 micrometers in diameter. What limits how large a cell can get
The relationship between its volume and surface area limits how large a cell can get.
What is cell range?The range of a cell is defined as the quantity of material that can be found within a cell with respect to the surface area.
The range of a cell is limited by the volume and the surface area which means that the wider the surface area the more volume the cell can contain.
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The __________ nervous system is the subdivision of the peripheral nervous system that regulates body activities that are generally not under conscious control
The autonomic nervous system is responsible for regulating involuntary body activities.
The nervous system coordinates the bodily functions of muscles to produce actions.Involuntary activities such as circulation, heartbeat, digestion, breathing, and peristalsis for example are generally not under our conscious control.
These are otherwise known as involuntary actions controlled by the autonomic nervous system which in turn is a subdivision of the peripheral nervous system (this system branches off the spinal cord to all other parts of the body.
Other parts of the nervous system would be the central nervous system divided into:
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A botanist scrapes pollen off of one plant and then use it to pollinate the flower of another plant . What can scientifically conclude about other offspring
A botanist scrapes pollen off a flower of one plant and then uses it to pollinate the flower of another plant. What can be scientifically concluded about their offspring?
A. They will have a large amount of genetic variation.
B. They will have twice the number of chromosomes as their parents.
C. They will be genetically distinct from their parents.
D. They will be able to reproduce only asexually.
Plants' xenogamous system has high probabilities of introducing genetic variation between plants. Option A) They will have a large amount of genetic variation.
What are the crossing systems in plants?There are two general crossing systems in plants, which depend on pollination type.
Self-pollination occurs when the flower pollen is transferred to the same flower stigma, reaching that individual egg to fertilize it. These are autogamous systems. Crossed pollination occurs when the mature pollen is driven by different pollinator agents from one flower to another, reaching the other flower stigma and fertilizing its eggs. These are xenogamous systems.
Sexual reproduction gives more possibilities to different alleles of a gene that did not appear in one generation to express in the next generation.
Both types of pollination allow genetic variation, however by the occurrence of crossed pollination there are more chances to ensure the variability of the species and survival to environmental changes.
While by self-pollination there are more chances to express the same genotype of the parental plant.
The Xenogamous system has the advantage of avoiding the effects of endogamy in a population by increasing genetic variability.
In the exposed example, the botanist is acting as the pollinator agent, allowing one plant's pollen grain to fertilize the egg of the other plant.
The merging of these gametes will introduce variation since there will new allelic combinations.
The correct option is A). They will have a large amount of genetic variation.
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In mitochondrial electron transport, what is the direct role of.
Answer:
O2 participates in cellular respiration
Explanation:
The only place that O2 participates in cellular respiration is at the end of the electron transport chain, as the final electron acceptor. Oxygen's high affinity for electrons ensures its success in this role.
The small dense region within the
nucleus is called...
A. the chloroplast.
B. the nucleolus.
C. the mitochondria.
Answer:
the nucleolus
Explanation:
i gotchu
After an investigation, Kuri determines that her hypothesis was wrong. What is the best thing for Kuri to do next?
propose a scientific theory that explains what went wrong
write a new hypothesis and conduct new experiments to explore the matter
rewrite a scientific law to better predict the observations she gathered
move on to a different topic because there is no value in a wrong hypothesis
Write a new hypothesis and conduct new experiments to explore the matter. Thus, option "B" is correct.
What is the Hypothesis?Hypothesis
The formulation of hypotheses is one of the key steps in the scientific method.
Hypotheses are usually tested using experiments and are usually accepted or rejected depending on the outcome of the experiments.
If a hypothesis is rejected, it does not mean that the entire subject is abandoned. Rather, new hypotheses may be formed and experiments conducted to further explore the subject.
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___________ provide motility to a sperm cell, ___________ act as sensory "antennae" in many cells and ____________ Increase a cell surface area
Flagella provide motility to a sperm cell, cilia act as sensory "antennae" in many cells and microvilli Increase a cell surface area
What is flagella, cilia and microvilli?Flagella is a hair-like structure used by cells for locomotion or movement. The sperm makes use of flagella for locomotion.
Cilia is a hair-like structure that is found on the surface of organisms which are sensitive to touch.
Microvilli is a hair-like structure that is richly fortified with blood vessels found in areas for absorption. This is because it increases the surface area.
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Explain in your words the light-dependent
reaction and the light-independent reaction
Answer: In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
Explanation:
Help me ye good people so that I may give brain something
Answer:
K
Explanation:
without having equal balance the ecosystem would collapse
On which part of the maintenance cycle do linux administrators spend the most time?
The part of the maintenance cycle the linux administrators spend the most time is monitoring system.
What is monitoring system?
A system monitor is a hardware or software component used to monitor system resources and performance in a computer system.
This computer hardware can be used by administrators to monitor system resources and performance in a computer system.
Thus, the part of the maintenance cycle the linux administrators spend the most time is monitoring system.
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Climate has changed over geologic time. How does this map provide evidence to support this claim?
Large sources of fossil fuels are found in cold regions shows evidence of climate change.
What this map shows?This map shows that large sources of fossil fuels are found in cold regions because fossil fuels are extracted from the living organisms body so in cold regions once there was a large number of organisms lived there. When they died the fossil fuel sources are formed.
So we can conclude that large sources of fossil fuels are found in cold regions shows evidence of climate change.
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animal viruses often have glycoprotein spikes on their capsids or envelopes. group of answer choices true false
According to the research, the statement is true, animal viruses often have glycoprotein spikes on their capsids or envelopes.
What are viruses?It is an obligate intracellular parasite, small in size, made up of nucleic acid and protein.
They have a layer or envelope of lipids and glycoproteins, which they obtain from the cell membrane of their host cells, and which is used to inject genetic material into the cell.
Therefore, we can conclude that according to the research, the statement is true, animal viruses often have glycoprotein spikes on their capsids or envelopes.
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which animals has a better chance of survival fox or leopard. why??
Answer:
Fox has a better chance of survival due to its thinking capacity as smartness.
Answer:
hope it is helpful for you but is very long but it is right way to write this answer if you like this answer please make me brilliant
Explanation:
fox have a server adaptations that allow them to survive their round compact bodies minimise surface area that expose the cold air the muscle years and legs are short which is also conserve heat
leopards are a solitary creatures that only spent time with others when they are making or racing young
they are also nocturnal and spent their nice hunting instead of sleeping leopard spent a lot of their time in trees there spotted comouflages them making template in with the leaves of the three
Which statement about bones is
INCORRECT?
A. Babies' bones are mostly cartilage.
B. Ossification is the process of bone
development.
C. Blood vessels run around bones and not
through.
D. Bones are made of living tissues.
What is the function of lysosomes?
Answer:
To break down bacteria
Explanation:
Answer:
it contains lytic enzymes that destroy aged and unwanted cell organelles. it sometimes destroys the entire cell.the key point is it destroys aged and unwanted cell organelles.
The __________ is also called the gradient and is equal to the change in elevation/distance, which means it changes as the river flows downhill.
A slope is also called the gradient and is equal to the change in elevation/distance, which means it changes as the river flows downhill.
What is the shift in elevation from a different location called?The shift in elevation from a different location is called the Contour interval. The shift in a ridge from one contour line to the next is always exact within the identical map.
A slope is effectively the gradient or inclined part of the land. This part of inclination is easily recognized in a hilly area.
Therefore, it is well described above.
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Suppose an mRNA consists of 60 nucleotides; it directs a primary polypeptide chain containing __________ amino acids to be synthesized.
An mRNA that consists of 60 nucleotides directs a primary polypeptide chain containing 18 amino acids to be synthesized.
What is the genetic code?The genetic code is a series of instructions by which a cell can synthesize proteins through two sequential processes: transcription (mRNA) and translation (protein).
The translation is produced from messenger RNAs (mRNAs), where triples of nucleotides or codons give rise to specific aminoacids.
In conclusion, an mRNA that consists of 60 nucleotides directs a primary polypeptide chain containing 18 amino acids to be synthesized.
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what event occurs at the end of the germinal period?
The event that occurs at the end of the germinal period is the zygote being implanted in the uterus walls.
What is the germinal period?The germinal period is the phase ranging from fecundation to zygote implantation into the uterus.
This period (germinal phase) is characterized by the generation of a zygote from germinal cells.
In conclusion, the event that occurs at the end of the germinal period is the zygote being implanted in the uterus walls.
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what has caused a 90 ecrease in southern california steelhead run sizes?
Answer:
The cause of the 90 decreases in southern California steelhead run sizes are because of the dams along the water sources and it has cause 90% decrease in the southern California steelhead run sizes. The Dam alter aquatic ecology cause the river hydrology up steam and down steam which cause the affecting water quality.
The reason why the Southern California steelhead run sizes has decreased by 90% is the construction of dams along water sources.
What is a dam?The dam is a large structure that serves the purpose of holding back water and making its level to rise quite high. Dams could be used for the purpose of electricity generation.
The reason why the Southern California steelhead run sizes has decreased by 90% is the construction of dams along water sources.
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Irregular stream flow which causes swirling of water in a specific area and localized erosion causes a deeper section known as a __________.
Irregular stream flow which causes swirling of water in a specific area and localized erosion causes a deeper section known as a deneduation.
What is deneduation?The processes of erosion, leaching, stripping, and diminishing the mainland as a result of material removal from higher to lower locations such valleys, river valleys, lakes, and oceans with a permanent filling of low lands are together referred to as denudation.
The elevation and relief of landforms and landscapes on Earth's surface by flowing water, ice, wind, and waves.
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Consider these versions of The War of the Worlds. Excerpt 1, from H. G. Wells's novel The War of the Worlds: The common round the sand pits was dotted with people, standing like myself in a half-fascinated terror, staring at these creatures, or rather at the heaped gravel at the edge of the pit in which they lay. And then, with a renewed horror, I saw a round, black object bobbing up and down on the edge of the pit. It was the head of the shopman who had fallen in, but showing as a little black object against the hot western sun. Now he got his shoulder and knee up, and again he seemed to slip back until only his head was visible. Suddenly he vanished, and I could have fancied a faint shriek had reached me. Excerpt 2, from Howard E. Koch's script for Orson Welles's radio adaptation: PHILLIPS: Ladies and gentlemen, you've just heard Mr. Wilmuth, owner of the farm where this thing has fallen. I wish I could convey the atmosphere . . . the background of this . . . fantastic scene. Hundreds of cars are parked in a field in back of us. Police are trying to rope off the roadway leading to the farm. But it's no use. They're breaking right through. Cars' headlights throw an enormous spot on the pit where the object's half buried. Some of the more daring souls are now venturing near the edge. Their silhouettes stand out against the metal sheen.
Which statement best describes the similarity between these versions?
A)Both versions impart an urgent tone through a resident’s words.
B)Both versions impart setting details through colorful description.
C)Both versions explain the background of a scientific phenomenon.
D)Both versions use characterization to show the locals' intelligence.
The similarity between the two versions is that both versions impart setting details through colorful description.
What is a setting of an event?The setting of an event or place refers to the overall features or prevailing conditions of a place in which a particular event occurs.
In the two versions of the events occurring, colorful description is used to explain the situation on ground. For example, the first version talks of half-fascinated terror, renewed horror, and a faint shriek which are all colorful words. The second version uses the descriptions; fantastic scene, enormous spot and daring souls.
Therefore, the similarity between the two versions is that both versions impart setting details through colorful description.
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During early research in nuclear energy, why were scientists surprised that the products from splitting a uranium
nucleus had less mass than the reactants?
O They expected that the large release of energy of would cause an increase in mass.
• Up to that time, only chemical changes were known to form less mass than they started with.
O All known changes always started and ended with the same amount of mass.
• Other known nuclear changes resulted in the same mass of products as reactants
Answer:
I think the answer is C. All known changes always started and ended with the same amount of mass.
Explanation:
I hope this helps!
How does cell volume affect nutrient exchange between the cell and its external environment.
Answer:
The ratio of cell volume to surface area determines the efficiency of nutrient exchange.
Explanation:
Which of the following describes a limiting factor of population size?
A. Birth rate
B. Death rate
C. Gestation
D. Water availability
