Answer:
a
Explanation:
What microscope uses a series of lenses to magnify an object?.
Answer:
modern compound light microscope
DNA is a very long molecule. It is packaged in a bacterial cell by the process of supercoiling due to the enzyme helicase. winding the DNA due to the action of DNA polymerase supercoiling due to the enzyme gyrase winding the DNA around proteins called histones QUESTION 4 DNA Polymerase seals DNA gaps proofreads the DNA chain adds bases to a new DNA chain O removes primers Gene expression can be summarized as DNA is translated to mRNA that is then transcribed to make a protein. DNA is transcribed to mRNA that is then translated to make a protein. Protein is translated to mRNA that is then transcribed to make DNA. mRNA is transcribed to DNA that is then translated to make a protein.
DNA is packaged in cells by the process of supercoiling, which is mediated by the enzyme gyrase. This process helps to compact the long DNA molecule into a smaller space, making it easier to fit inside the cell.
DNA polymerase is an enzyme that plays a critical role in DNA replication by adding new nucleotides to a growing DNA chain, proofreading the DNA to ensure accuracy, and sealing any gaps that may arise in the DNA chain. The process of gene expression involves the translation of the genetic information encoded in DNA into a functional protein molecule through the intermediary of mRNA. This process begins with transcription, where the DNA is used as a template to generate an mRNA molecule, which is then translated by ribosomes to synthesize a protein. Therefore, the correct statement regarding gene expression is that DNA is transcribed to mRNA that is then translated to make a protein.
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In two or more complete sentences describe the relationship between tralts, genes, chromosomes and DNA.
DNA carries the genetic code that determines the characteristics and traits of living things where the nucleus of a cell contains chromosomes made up of long chains of DNA molecules where the genes are small segments of DNA.
What are Chromosomes?A chromosome is defined as a long DNA molecule that contains part or all of an organism's genetic material, which are very long thin DNA fibers that are coated with packaging proteins; The most important of these proteins in eukaryotic cells are the histones.
DNA, genes and chromosomes work together to make us where chromosomes carry DNA in cells while DNA is responsible for building and maintaining the human structure. Genes are segments of DNA that give us the physical characteristics that make us unique.
Thus, DNA carries the genetic code that determines the characteristics
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What if the SHH you are making needs to be accumulated in the cell so that it can be released all at once into the extracellular space at a specific time? How would you store the produced SHH? What would need to occur to release all of the SHH from storage into the extracellular space?
If SHH is to be accumulated and then released into cellular space at a specific time, it would be necessary to establish storage mechanisms and release mechanisms.
To store the produced SHH would require specialized cellular compartments.
To release all of the stored SHH, a signal or stimulus would need to trigger the release of SHH from storage into the extracellular space.
What steps would the SHH storage and release process take place?SHH production.Storage.Storage regulation.Production of the SHH release signal.SHH release.SHH is a protein that is stored within the cell and is released into the extracellular space in times of need. These processes need to work in a very regulated way in order to achieve their objectives. For this reason, well-regulated and optimized storage and release mechanisms are needed.
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The double-helix structure of DNA:
Answer:
Looks like a twisted staircase (example attached)!
hope this helps! plz mark brainliest? :)
7. Since the allele for color blindness is located on the X chromosome, color
blindness
1 cannot be inherited
2 occurs only in adults
3 is sex-linked
4 none of the above
(HELP ME PLEASEEE!)
Hemophilia A and red-green color blindness are examples of X-linked recessive diseases. Color blindness to red and green. Red-green color blindness prevents a person from recognizing red and green hues (usually blue-green). Otherwise, though, they can see normally. Thus, option C is correct.
What allele for color blindness located on X chromosome?Females have two X chromosomes, while males have one X and one Y chromosome. The X chromosome is where the genes that might cause red-green color blindness are handed down. Men are more likely than women to have red-green color blindness, since it is X-chromosom-inherited.
One of the most prevalent genetic (inherited) disorders in the world is color blindness, which means it is typically inherited from your parents.
Therefore, the allele for color blindness is located on the X chromosome, color blindness is sex-linked.
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2. calculate the rate of population change for the whales and the seals for the full length of the study. (hint: divide the total change in population size (negative or positive) by the total change in time, which is 10 years.)
The rate of population change for the whales and the seals over the full length of the study is 10 whales per year and 10 seals per year, respectively.
Assume the initial population of whales was 100 and the final population after 10 years was 200.
The total change in population for the whales would be 200 - 100 = 100.
Similarly, let's say the initial population of seals was 500 and the final population after 10 years was 600.
The total change in population for the seals would be 600 - 500 = 100.
Now, to calculate the rate of population change, you divide the total change in population by the total change in time, which is 10 years in this case.
For the whales: Rate of population change = (100 whales / 10 years)
= 10 whales per year.
For the seals: Rate of population change = (100 seals / 10 years)
= 10 seals per year.
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identifying an autosomal recessive mutation in a mutagenic screen in drosophila requires identification of a mutant in the f3 generation. if testing for a sex-linked recessive lethal mutation (e.g., cn) using a balancer chromosome such as cncyo, in which generation can lines with mutations be identified?
To identify a sex-linked recessive lethal mutation using a balancer chromosome such as cncyo in Drosophila, lines with mutations can be identified in the F1 generation.
A balancer chromosome is a specialized chromosome used in Drosophila genetics to maintain the integrity of a specific genotype during breeding.
In the case of a sex-linked recessive lethal mutation, the balancer chromosome contains multiple inversions that prevent recombination and help maintain the recessive lethal mutation along with visible markers.
The cncyo balancer chromosome, for example, carries the cn mutation, which is recessive and lethal when homozygous.
When performing crosses with a balancer chromosome, the F1 generation will inherit one copy of the balancer chromosome along with the recessive lethal mutation.
The visible markers on the balancer chromosome, such as eye color or wing shape, can be used to identify the presence of the balancer chromosome and, by extension, the presence of the recessive lethal mutation.
If a line exhibits the phenotypic markers associated with the balancer chromosome, it indicates the presence of the recessive lethal mutation.
Therefore, lines with mutations can be identified in the F1 generation when testing for a sex-linked recessive lethal mutation using a balancer chromosome in Drosophila.
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A population of 40 deer are introduced into a wildlife sanctuary. It is estimated that the sanctuary can
sustain up to 600 deer. Absent constraints, the population would grow by 60% per year. Estimate the population
after one year Pi Estimate the population after two years P2 -
The population of deer in the wildlife sanctuary can be estimated using the formula:
P(t) = P(0) * (1 + r)^t
where P(t) is the population after t years, P(0) is the initial population, r is the growth rate per year, and t is the number of years.
In this case, the initial population (P(0)) is 40 deer, the growth rate (r) is 60% per year (0.60), and we need to estimate the population after one year (P1) and two years (P2).
To calculate P1:
P(1) = 40 * (1 + 0.60)^1
P(1) = 40 * (1 + 0.60)
P(1) = 40 * 1.60
P(1) = 64
Therefore, the estimated population after one year is 64 deer.
To calculate P2:
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * (1 + 0.60)^2
P(2) = 40 * 1.60^2
P(2) = 40 * 2.56
P(2) = 102.4
Therefore, the estimated population after two years is 102.4 deer.
It's important to note that these are estimates and assume that there are no constraints on the population growth. In reality, factors like limited resources, predation, and disease can affect the growth rate and population size.
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A significant life-limiting factor in the ocean depths would include which of the following?
O carbon sources
O availability of detritus
O coastal upwelling
O temperature
Answer:
the answer is temperature
Explanation:
got an A on the test
explain how temperature affects population size
Answer: High temperature and drying were both associated with greater per capita mortality rate. Smaller population sizes at high temperatures and drying regimes may result from increased desiccation of adults and thus higher mortality. These precipitation effects on adult production are absent at 22°C
OR
Other than toxic metals, temperature rise and low resource availability are factors that are also known to stress populations. A rise in temperature generally accelerates metabolic rates and hence population growth rate
Which statements describe the characteristics of an individual protein? Select two options.
The branch of science which deals with chemistry uses in biology is called biochemistry.
What the digestion of protein requires?
The digestion of protein requires the enzyme which catalyzes the reactant and speeds up the reaction by decreasing the activation energy.The protein molecule has an active binding site that is specific to each protein. Each protein has a specific type of enzyme that catalyzes the reaction.
It is specific to one biochemical reaction and It slow down the rate of a biochemical reaction.
Therefore, The branch of science which deals with chemistry uses in biology is called biochemistry.
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Tell some thing about Ch 9 of class 8th
answer
in this chapter you'll learn about how reproduction take place in organisms like animals and humans . you'll also get to know very different way of some uni cellular and multi cellular organisms that how they divide itself and produce a new kind of it's own ; example : the process of budding , binary fission . you'll get to know how internal and external fertilization .
hope you have understand :)
in the popular classificiation method called blank how many other homoplasys can be made
In the popular classification method called cladistics. The number of possible homoplasies that can be made in cladistics depends on the number and complexity of the traits being considered, as well as the evolutionary relationships among the organisms being classified.
Homoplasy is the term used in cladistics to describe a similarity in traits that is not attributable to a shared ancestor but rather to convergent evolution, parallel evolution, or evolutionary reversal.
In general, homoplasy is more likely to happen the more qualities that are taken into account. Cladistics, on the other hand, aims to reduce homoplasy by emphasising shared derived features (synapomorphies) that are particular to some groupings and point to a common ancestor.
Cladistics seeks to develop a classification scheme that accurately depicts the links between organisms during evolution by utilising synapomorphies.
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The following question may be like this:
In the popular classification method called _____. How many other homoplasy's can be made.
Which of the following actions put New York City at risk for climate disruption?
They left too many trees and vegetation.
They used different pipes for flood water and sewage.
They created a grid system of roads without considering flood control.
They built marshlands and swamps and a central park.
The actions that put New York City at risk for climate disruption is that they created a grid system of roads without considering flood control (option C).
What is climate change?Climate change is the large-scale and long-term change in the Earth's climatic system produced by global warming i.e. anthropogenic climate change.
Climate change is a case of global concern and it is as a result of anthropogenic activities.
According to this question, New York City is at the risk of climate disruption because of the action they took. This action is that New York City created a grid system of roads without considering flood control.
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the study of the liver is to gross anatomy as the study of a liver cell is to
The study of the liver is to gross anatomy as the study of a liver cell is to microscopic anatomy.
Gross anatomy is the study of the structures of the body that can be seen with the unaided eye, while microscopic anatomy, also known as histology, is the study of the structures and functions of cells and tissues using a microscope. Therefore, the study of a liver cell, which is a microscopic unit of the liver, falls under the category of microscopic anatomy. It involves studying the internal structures of the cell, such as the nucleus, cytoplasm, organelles, and other components, and understanding how they function together to carry out the cell's various roles in the body.
By studying the liver at both the gross and microscopic levels, we can gain a comprehensive understanding of its structure and function and how it contributes to overall health and wellbeing.
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PLEASE I WILL MARK AND 5 STARS < THANKS
Answer:
The correct answer is heterozygous.
Explanation:
The pea pods are heterozygous for pod color (Gg).
"G" is the dominant gamete and "g" is non-dominant. This explains why the pod in the fourth square is yellow because there is no "G" gamete, which would dominate the "g" gamete and make the pod green.
Decomposition of the ozone may lead to an increase in mutations because
Mutations increase due to the decmoposition of the ozone because it can allow the penetration of UV radiations such as UVA, UVB, and UVC to reach Earth. These types of radiations can harm us by causing certain diseases in humans such as skin cancer, eye damage, and of course, mutations.
What is the name of the irreversible inhibitor (drug) used as an example in the lecture?
Diisopropylfluorophosphate (DPF) is the irreversible inhibitor (drug) used as an example in the lecture. the its an enzyme hydrolyses the pheophrous- Florine bond, but the phosphate remains bound to serine in the active site and deactivating it.
Irreversible inhibitor are contently /non contently bound to the specific enzyme and slow down the enzyme. invisible hibitors are 3 types such as group specific reagents , reactive substrate analogs also known as affinity label and inhibitor.
There are some examples of irreversible inhibitors -compound diisopropylphosphofluoridate (DIPF), nerve gases ,acetylcholinesterase ,and preventing transmission of impulse. Penicillin irreversibly inhibits the enzyme transpeptidase by reacting with transpeptidase.
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Can someone help me
What is the epipelagic zone of the ocean? a.a zone with no light that is freezing cold b. the bottom zone that reaches the sea floor c. the zone that receives the most sunlight d. a middle zone with very little light and few plants
The epipelagic zone of the ocean is c.the zone that receives the most sunlight.
Numerous open sea life forms live out their presence without ever coming into contact with the shore, the seafloor, or the water’s surface. . As arrive, warm-blooded creatures that breathe air, walk on arrive, and depend on our sense of locate for nearly all capacities, The epipelagic zone is the portion of the sea where there's sufficient daylight for algae to utilize photosynthesis. For the most part talking, this zone comes from the ocean surface down to roughly 200 m (650 feet). The epipelagic is domestic to all sorts of iconic animals. Organisms that live within the epipelagic zone may come into contact with the ocean surface.
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Answer:
The surface layer of the ocean that receives the most sunlight is epipelagic zone.
Explanation:
There are five zones in the ocean's water column: the epipelagic (dawn zone), mesopelagic (twilight zone), bathypelagic (midnight zone), abyssopelagic (abyssal zone), and hadal zone (trenches).
The Greek terms epi, which mean "at the surfaces," and pelagikos, which mean "of the sea," combine to form the word epipelagic. Because enough sunlight can reach the waters in this region for photosynthesis to take place, it is known as the Sunlight Zone.
The epipelagic zone, which covers the top 200 meters of the ocean, is referred to as the ocean's surface layer (656 feet). Since this is where the majority of the visible light is located, it is sometimes referred to as the sunlight zone.
what would happen to the animal cell in the isotonic solution if it were placed in pure water?
Answer:
Nothing
Explanation:
An isotonic solution is a solution in which the concentration of water is the same as that of the cell. So when an animal cell is placed in an isotonic solution, water will neither flow out nor in. No osmosis occurs. So nothing will happen to the animal cell.
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Examine the model. What a
biotic components of the carbon cycle? Choose ALL that apply.
A. cows
B. trees
C. decomposers
D. soil
E. sunlight
Answer:
A, B, and C
Explanation:
These choices all play a role in the carbon cycle while being biotic, aka living organism.
A. Cows release carbon through cellar respiration and farts
B. Trees take in carbon through process of photosynthesis
C. decomposers break down dead material from plants and other organisms and release carbon dioxide into the atmosphere.
again all of these are biotic since they are living organisms and all contribute to the carbon cycle.
A man walks 10 meters in 5 seconds, what is his speed?
Answer:
2m/s
avg. speed=10m5s=2m/s .
Explanation:
if a somatic cell from a mouse contains 40 picograms of dna during g2 of interphase, then how many picograms of dna would be present in each cell during anaphase i of meiosis?
A mouse somatic cell would contain 40X2=80 picograms of DNA if it has 40 picograms more DNA at g2 of interphase.
What is a cell ?The smallest unit in biology that can sustain life on its own and tries to make up all living things as well as the body's tissues. The cellular membranes, the nucleus, as well as the cytoplasm are the three primary components of a cell. The cell membrane, that completely covers the cell, controls the chemicals that enter and exit the cell. A peer-reviewed scientific publication called Cell publishes research papers in a variety of life sciences fields. Cell was established by Benjamin Lewin in January 1974 under the auspices of MIT Press. After purchasing the book, he started Cell Press on his own in 1986. Lewin sold Cells Press to Elsevier in April 1999.
What are the types of cells and its functions ?Epithelial cells are one type of cell. These Nerve Cells are closely bound to one another. Muscle cells, connective tissue cells, and all these cells were specialized for communication, contraction, and movement. Cells primarily serve as structural and supportive components. You are aware that bricks make up a house, Growth. The simple process of cell multiplication, transportation, energy production, metabolism, and reproduction allows tissues in complex creatures like humans to flourish.
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30 more coins for answer
Newton’s 2nd Law of motion can also be stated using the equation F= ma. State what EACH variable means and give its units. 6 marks
F is the symbol for :
m is the symbol for:[type answer here]
a is the symbol for :[type answer here]
The unit of F is:[type answer here]
The unit of m is:[type answer here]
The unit of a is: [type answer here]
A learner stated "The carrying capacity of a population is the minimum number of individuals that is needed to prevent a population from disappearing. "
Is this statement true or false?
False. While the carrying capacity of a population does refer to the maximum number of individuals that a particular environment can support, it does not necessarily have anything to do with preventing a population from disappearing.
In fact, many populations do disappear due to a variety of factors, including overhunting, habitat destruction, disease, and competition for resources. Therefore, the answer to this question is a long answer that involves more detail about the concept of carrying capacity and how it relates to population dynamics.
The carrying capacity of a population refers to the maximum number of individuals that an environment can support indefinitely without depleting its resources. It does not refer to the minimum number needed to prevent a population from disappearing.
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blood type can receive Rh+ or Rh- blood
Answer:
People with Rh- blood can give blood to both Rh- and Rh+ recipients. However, those with Rh+ blood cannot give to Rh- recipients. If a person receives blood from someone with an incompatible blood type, it can cause a life threatening immune system reaction.
Answer:
Have a nice day.
Explanation:
This happens when water vapor rises, cools off then gets closer together and forms clouds.
HELLLPPP
Answer:
Condensation....I think
Answer:
I would believe the answer is condensation. sorry if it's wrong, I haven't taken this course in a long time. <333
Explain why the BREATHING RATE of students increased after exercise. Include information about what happens at the level of body systems and at the cell.
Explain why the HEART RATE of the students increased after exercise. Include information about what happens at the level of body systems and at the cell.
Answer:
When exercising, your body uses more oxygen and produces more carbon dioxide and your muscles also need energy to contract because of this your breathing needs to increase.
Hope this helps :D
Answer:
for why the heart rate increase is because during exercise alot energy is used which means alot of oxygen also used for respiration ,the cells need oxygen to meet the demand of energy so breathing rate increase then to transport oxygen faster then the heart rate also increases.